List of asteroid close approaches to Earth in 2019 explained

Time of discovery of asteroids which came closer to Earth than the Moon in 2019
Other Years
Caption:Years
Below:2017, 2018, 2019, 2020, 2021
Below is the list of asteroid close approaches to Earth in 2019.

Timeline of known close approaches less than one lunar distance from Earth

A list of known near-Earth asteroid close approaches less than 1 lunar distance (0.0025696AU) from Earth in 2019.[1] 2019 has been a notable year in that an asteroid was detected prior to impact (2019 MO). This has only happened three times previously (see List of successfully predicted asteroid impacts). In addition, for the first year ever, four close approaches of previously undiscovered asteroids were successfully predicted over a week in advance.

For reference, the radius of Earth is approximately 4.26E-05AU or 0.0166 lunar distances.
Geosynchronous satellites have an orbit with semi-major axis length of 0.000282AU or 0.110 lunar distances. A number of known asteroids came closer than this in 2019, notably including 2019 MO which was detected a few hours before it impacted, only the fourth asteroid impact in history to have been successfully predicted in advance.
While most asteroids on this list are confirmed, well-observed unconfirmed objects with a 50% or greater chance of passing within 1 LD of the Earth are included as well.

The largest asteroid to pass within 1 LD of Earth in 2019 was with an estimated diameter of around 95 meters and an absolute magnitude of 23.3. The fastest asteroid to pass within 1 LD of Earth in 2019 was that passed Earth with a velocity with respect to Earth of 25.9km/s.[2] [3]

width=100 Date of
closest
approach
Date
discovered
width=100 Objectwidth=205 data-sort-type="number"Nominal geocentric
distance (AU)[4]
data-sort-type="number"Nominal geocentric
distance (LD)
data-sort-type="number"Size (m)
(approximate)
(H)
(abs. mag)
Closer
approach
to Moon
width=170 Refs[5] [6]
2019-01-08 2019-01-08 0.000101AU 0.039 align=center 0.7–2.5 align=center 32.3 align=center
2019-01-12 2019-01-11 0.000666AU 0.26 align=center 8–25 align=center 27.2 align=center
2019-01-12 2019-01-16 P10LI6O 0.0023AU 0.90[7] align=center 3–18 28.6 align=center ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-16 2019-01-17 0.00046AU 0.18 align=center 5–18 align=center 28.0 align=center
2019-01-17 2019-01-16 P10LGkb 0.000225AU 0.088[8] 1–3 31.6 Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-24 2019-01-25 0.000904AU align=center 0.35 align=center 3–14 align=center 28.7 align=center
2019-01-27 2019-01-28 C04U1L2 0.0015AU 0.60[9] align=center 2–12 29.4 align=center ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-01-27 2019-01-28 0.000322AU 0.13 align=center 4–12 28.7 align=center
2019-02-09 2019-02-09 C03CZA1 0.00175AU 0.68[10] align=center 9–30 26.9 align=center Pseudo-MPEC
CNEOS Distance (H) (T)
2019-02-11 2019-02-12 0.000793AU 0.31 align=center 6–19 27.8 align=center
2019-02-26 2019-02-28 0.00158AU 0.61 align=center 4–14 28.5 align=center
2019-02-26 2019-02-26 0.0012AU 0.47 align=center 2–8 29.7 align=center
2019-03-01 2019-03-01 0.000157AU 0.061 align=center 2–6 30.1 align=center
2019-03-04 2019-03-05 C09Q4H2 0.000178AU 0.069[11] align=center 1–3 31.9 align=center Pseudo-MPEC
CNEOS Distance (T)
2019-03-04 2019-03-04 C04H931 0.0014AU align=center 0.54[12] align=center 5–19 28.0 align=center ? Pseudo-MPEC
CNEOS Distance (H) (T)
2019-03-06 2019-03-07 C0A1UN2 5.26E-05AU align=center 0.020[13] align=center 0.4–1.3 align=center 33.5 align=center
2019-03-13 2019-03-14 0.00221AU align=center 0.86 align=center 6–21 27.6 align=center
2019-03-22 2019-03-09 0.00205AU align=center 0.80 align=center 14–44 25.9 align=center
2019-03-23 2019-03-25 0.0022AU align=center 0.86 align=center 10–23 27.1 align=center
2019-03-28 2019-03-29 0.00069AU align=center 0.27 align=center 20–45 align=center 25.6 align=center ?
2019-03-31 2019-03-29 0.00223AU align=center 0.87 align=center 4.6–10 align=center 28.8 align=center ?
2019-03-31 2019-04-03 0.00238AU align=center 0.93 align=center 3.0–6.6 align=center 29.8 align=center ?
2019-04-04 2020-02-15 8.77E-05AU align=center 0.034 align=center 1.9–3.5 align=center 31.7 align=center
2019-04-06 2019-04-05 A10cQ6k 0.000989AU align=center 0.39[14] align=center 6.7–22 align=center 27.5 align=center
2019-04-12 2019-04-09 0.00253AU align=center 0.98 align=center 14–31 align=center 26.4 align=center ?
2019-04-18 2019-04-09 0.00146AU align=center 0.57 align=center 13–30 align=center 26.5 align=center ?
2019-04-20 2019-04-21 0.0015AU align=center 0.58 align=center 12–28 align=center 26.7 align=center ?
2019-04-30 2019-05-01 0.00178AU align=center 0.69 align=center 6.7–15 align=center 28 align=center ?
2019-05-01 2019-05-01 C093PF1 0.000588AU align=center 0.23[15] align=center 1.9–6.2 align=center 30.2 align=center
2019-05-02 2019-05-03 0.0012AU align=center 0.47 align=center 4.0–8.9 align=center 29.1 align=center ?
2019-05-03 2019-05-04 C0M3DQ2 0.000879AU align=center 0.34[16] align=center 5.1–16 align=center 28.1 align=center
2019-05-05 2019-05-06 0.00098AU align=center 0.38 align=center 3.2–7.2 align=center 29.6 align=center ?
2019-05-16 2019-05-14 0.00048AU align=center 0.19 align=center 3.1–7.0 align=center 29.6 align=center ?
2019-05-28 2019-05-26 0.00217AU align=center 0.85 align=center 13–29 align=center 26.6 align=center ?
2019-06-06 2019-06-06 0.00056AU align=center 0.22 align=center 7.3–16 align=center 27.8 align=center ?
2019-06-08 2019-06-02 0.00166AU align=center 0.65 align=center 9.3–21 align=center 27.3 align=center ?
2019-06-22 2019-06-22 Impact align=center Impact align=center 3–10 align=center 29.3 align=center ? [17] [18]
2019-07-02 2019-07-04 0.00177AU align=center 0.69 align=center 2.6–5.7 align=center 30.1 align=center ?
2019-07-09 2019-06-29 0.00211AU align=center 0.82 align=center 16–35 align=center 26.2 align=center ?
2019-07-09 2019-07-09 0.00253AU align=center 0.98 align=center 6.4–14 align=center 28.1 align=center ?
2019-07-10 2019-07-07 0.00214AU align=center 0.83 align=center 29–66 align=center 24.8 align=center ?
2019-07-24 2019-07-21 0.00239AU align=center 0.93 align=center 54–120 align=center 23.5 align=center ?
2019-07-25 2019-07-24[19] 0.00048AU align=center 0.19 align=center 59–130 align=center 23.3 align=center ?
2019-07-28 2019-07-27 0.00126AU align=center 0.49 align=center 11–25 align=center 26.9 align=center ?
2019-07-29 2019-07-30 0.00143AU align=center 0.56 align=center 7.4–16 align=center 27.8 align=center ?
2019-08-20 2019-08-22 0.00083AU align=center 0.32 align=center 8.7–20 align=center 27.4 align=center ?
2019-08-20 2019-08-21 0.00033AU align=center 0.13 align=center 2.2–5.0 align=center 30.4 align=center ?
2019-08-22 2019-08-21 0.002AU align=center 0.78 align=center 4.7–11 align=center 28.8 align=center ?
2019-08-26 2019-08-28 0.00207AU align=center 0.80 align=center 6.6–15 align=center 28 align=center ?
2019-08-26 2019-08-27 0.00064AU align=center 0.25 align=center 3.7–8.2 align=center 29.3 align=center ?
2019-09-02 2019-09-03 0.00074AU align=center 0.29 align=center 2.1–4.6 align=center 30.6 align=center ?
2019-09-05 2019-09-06 0.00025AU align=center 0.10 align=center 7.3–16 align=center 27.8 align=center ?
2019-09-07 2019-09-05 0.00123AU align=center 0.48 align=center 4.6–10 align=center 28.8 align=center ?
2019-09-16 2019-09-19 0.00163AU align=center 0.64 align=center 8.3–19 align=center 27.5 align=center ?
2019-09-21 2019-09-22 0.00048AU align=center 0.19 align=center 2.6–5.8 align=center 30.1 align=center ?
2019-09-21 2019-09-20 0.00187AU align=center 0.73 align=center 5.5–12 align=center 28.4 align=center ?
2019-09-21 2019-09-22 0.00077AU align=center 0.30 align=center 2.0–4.4 align=center 30.7 align=center ?
2019-09-22 2019-09-25 0.00188AU align=center 0.73 align=center 15–34 align=center 26.2 align=center ?
2019-09-28 2019-09-30 0.00255AU align=center 0.99 align=center 4.3–9.7 align=center 28.9 align=center ?
2019-09-28 2019-10-01 0.00238AU align=center 0.93 align=center 6.8–15 align=center 28 align=center ?
2019-09-29 2019-10-01 0.00087AU align=center 0.34 align=center 3.9–8.7 align=center 29.2 align=center ?
2019-10-01 2019-09-30 0.00106AU align=center 0.41 align=center 3.8–8.6 align=center 29.2 align=center ?
2019-10-03 2019-09-22 0.00249AU align=center 0.97 align=center 14–31 align=center 26.4 align=center ?
2019-10-05 2019-10-06 0.00083AU align=center 0.32 align=center 5.5–12 align=center 28.4 align=center ?
2019-10-18 2019-10-19 0.00151AU align=center 0.59 align=center 2.2–5.0 align=center 30.4 align=center ?
2019-10-18 2019-10-19 0.00215AU align=center 0.84 align=center 6.3–14 align=center 28.1 align=center ?
2019-10-19 2019-10-22 0.00199AU align=center 0.77 align=center 5.9–13 align=center 28.3 align=center ?
2019-10-23 2019-10-25 0.0024AU align=center 0.93 align=center 3.1–6.9 align=center 29.7 align=center ?
2019-10-25 2019-10-26 0.00105AU align=center 0.41 align=center 3.7–8.3 align=center 29.3 align=center ?
2019-10-26 2019-10-29 0.00255AU align=center 0.99 align=center 4.8–11 align=center 28.7 align=center ?
2019-10-27 2019-10-28 0.00112AU align=center 0.44 align=center 6.3–14 align=center 28.1 align=center ?
2019-10-29 2019-10-26
(AKA)
0.00127AU align=center 0.50 align=center 4.3–9.7 align=center 28.9 align=center ?
2019-10-31 2019-10-31 8.43E-05AU align=center 0.03 align=center 1.0–2.2 align=center 32.1 align=center ?
2019-11-01 2019-10-29 0.0014AU align=center 0.55 align=center 12–28 align=center 26.7 align=center ?
2019-11-02 2019-11-01 0.00071AU align=center 0.28 align=center 5.8–13 align=center 28.3 align=center ?
2019-11-04 2019-11-01 0.00117AU align=center 0.45 align=center 8.7–20 align=center 27.4 align=center ?
2019-11-04 2019-11-03 0.00091AU align=center 0.35 align=center 6.4–14 align=center 28.1 align=center ?
2019-11-06 2019-11-06 0.00093AU align=center 0.36 align=center 9.2–21 align=center 27.3 align=center ?
2019-11-09 2019-11-08 0.00097AU align=center 0.38 align=center 1.2–2.7 align=center 31.7 align=center ?
2019-11-09 2019-11-05 0.00127AU align=center 0.49 align=center 8.1–18 align=center 27.6 align=center ?
2019-11-19 2019-11-18 0.00057AU align=center 0.22 align=center 15–35 align=center 26.2 align=center ?
2019-11-19 2019-11-24 0.00185AU align=center 0.72 align=center 6.2–14 align=center 28.2 align=center ?
2019-11-23 2019-11-24 0.00121AU align=center 0.47 align=center 27–60 align=center 25 align=center ?
2019-11-30 2019-11-29 0.00219AU align=center 0.85 align=center 5.5–12 align=center 28.4 align=center ?
2019-12-18 2019-12-17 0.00113AU align=center 0.44 align=center 3.1–7.0 align=center 29.7 align=center ?
2019-12-18 2019-12-19 0.00044AU align=center 0.17 align=center 1.3–3.0 align=center 31.5 align=center ?
2019-12-23 2019-12-24 0.00066AU align=center 0.26 align=center 8.9–20 align=center 27.4 align=center ?
2019-12-25 2019-12-30 0.00251AU align=center 0.98 align=center 9.3–21 align=center 27.3 align=center ?

Warning Times by Size

This sub-section visualises the warning times of the close approaches listed in the above table, depending on the size of the asteroid. The sizes of the charts show the relative sizes of the asteroids to scale. For comparison, the approximate size of a person is also shown. This is based the absolute magnitude of each asteroid, an approximate measure of size based on brightness.

Abs Magnitude 30 and greater (size of a person for comparison)Abs Magnitude 29-30Absolute Magnitude 28-29Absolute Magnitude 27-28Absolute Magnitude 26-27Absolute Magnitude 25-26 Absolute Magnitude less than 25 (largest)

Notes

Timeline of close approaches less than one lunar distance from the Moon

The number of asteroids listed here are significantly less than those of asteroids that approach Earth for several reasons. Asteroids that approach Earth not only move faster, but are brighter and are easier to detect with modern surveys because:

These factors severely limit the amount of Moon-approaching asteroids, to a level many times lower than the asteroids detected passing as close to Earth.

width=100 Date of
closest
approach
width=100 Objectwidth=205 Nominal lunocentric
distance (AU)[20]
Nominal lunocentric
distance (LD)
data-sort-type="number"Size (m)
(approximate)
(H)
approach
distance
to Earth
(LD)
Refs
2019-01-04 0.00246AU align=center 0.96 align=center 10–43 align=center 26.3 align=center 1.43
2019-01-07 0.00107AU align=center 0.41 align=center 0.7–2.5 align=center 32.2 align=center 0.039
2019-01-15 0.00221AU align=center 0.86 align=center 5–18 align=center 28.0 align=center 0.18
2019-01-25 0.00134AU align=center 0.52 align=center 3–14 align=center 28.7 align=center 0.35
2019-01-27 0.00234AU 0.91 align=center 4–12 28.7 align=center 0.13
2019-02-10 C03CZA1 0.00239AU 0.93[21] align=center 9–30 26.9 align=center 0.68 Pseudo-MPEC
CNEOS Distance (H) (T)
2019-02-11 0.00181AU align=center 0.70 align=center 6–19 27.8 align=center 0.31
2019-02-11 0.00252AU align=center 0.98 align=center 12–45 26.1 align=center 1.42
2019-02-26 0.00242AU align=center 0.94 align=center 15–51 25.6 align=center 1.89
2019-02-26 0.00223AU align=center 0.87 align=center 5–18 28.0 align=center 1.32
2019-02-27 2019 DF 0.0017AU align=center 0.66 align=center 2–8 29.7 align=center 0.47
2019-03-01 0.00184AU align=center 0.72 align=center 2–6 30.1 align=center 0.061
2019-03-04 C09Q4H2 0.00256AU align=center 0.998[22] align=center 1–3 31.9 align=center 0.069 Pseudo-MPEC
CNEOS Distance (T)

Notes

Additional examples

An example list of near-Earth asteroids that passed more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2019.

Objectdata-sort-type="number"Size
meters
data-sort-type="number"lunar
distances
DateRef
215 2019-01-07
40 2019-01-30
25 2019-03-04
16 2019-04-04 ± 5
111 2019-05-12
(12538) 1998 OH 1663 2019-05-16
19 [23] 2019-05-17
66391 Moshup 1317 2019-05-25
228 2019-06-24
25 2019-07-07 ± 6
270 2019-07-24
138 2019-07-26
11 2019-08-07 ± 5
2864 2019-08-25
115 2019-08-28
1620 Geographos 2560 2019-08-31
9 2019-09-09 ± 9
2100 Ra-Shalom 2300 2019-09-21
164 2019-12-06 ± 7

Notes

Virtual impactors

Listed are asteroids that are included on the Sentry Risk Table because they have short observation arcs with poorly constrained orbits and have a chance of striking Earth in 2019. Given a short observation arc, many different orbits fit the observed data. These objects could be millions if not billions of kilometers from Earth on the date of a low probability virtual impactor. For example, is expected to be 5.3AU from Earth in October 2019 around the time of the virtual impact.

Cumulatively among the asteroids listed below, there is a roughly 1 in 16,500 chance that any of the asteroids will impact Earth in 2019. Most of this comes from asteroid which formerly had a 1 in 20,000 chance of impact on 9 September 2019, but the impact was ruled out in August.

Also included are asteroids discovered before impact and exceptionally massive fireballs with either an equivalent yield of more than 1 kiloton of TNT or an estimated size of more than 3 meters.

width=90 DateObjectEstimated
diameter
(meters)
Obs
arc

(days)
Impact
probability
(1 in)
Sigma from
best-fit orbit
[24]
Palermo
scale
JPL Horizons
nominal geocentric
distance (AU)
NEODyS
nominal geocentric
distance (AU)
2019-01-06[25] 80–260 1.1 710,000,000 -2.461 align=center-5.51 2.8AU 3AU
2019-01-06[26] 459–497 2.7 210,000,000 -2.004 align=center-4.32 2.4AU 2.9AU
2019-01-07[27] [28] 15–47 5.9 (0.99) N/A (1,400,000,000) N/A (-0.160) N/A (-8.09) 1.5AU 1.5AU
2019-01-08[29] [30] [31] 309–321 0.60 220,000,000 -4.057 align=center-6.94 3AU 0.52AU
2019-01-10[32] [33] 6–20 0.071 36,000,000 -1.475 align=center-7.80 1.4AU 1.2AU
2019-01-10[34] [35] 10–35 0.16 4,200,000,000 -3.197 align=center-8.22 1.3AU 1.3AU
2019-01-11 309–321 0.60 4,200,000,000 -2.874 align=center-6.91 3AU 0.51AU
2019-01-11 309–321 0.60 2,900,000,000 -2.297 align=center-6.52 3AU 0.51AU
2019-01-11[36] [37] 3–12 0.058 17,000,000 -1.593 align=center-7.91 2.4AU 2.4AU
2019-01-20 10–35 0.16 1,400,000,000 -3.137 align=center-9.15 1.3AU 1.3AU
2019-02-01[38] N/A (not discovered
before impact)
4 N/A 1 0.000 0 N/A
(impact)
N/A
(impact)
2019-02-07[39] [40] 92–300 1.0 1,100,000,000 -0.900 align=center-5.81 2.1AU 2.1AU
2019-02-15[41] [42] 5–16 0.043 290,000,000 0.751 align=center-8.30 0.082AU 2.3AU
2019-02-15[43] [44] 7–23 0.18 62,000,000 -2.603 align=center-7.84 1.3AU 0.29AU
2019-02-18 7–23 0.18 280,000,000 -2.921 align=center-8.34 1.3AU 0.3AU
2019-02-18 N/A (not discovered
before impact
5 N/A 1 0.000 0 N/A
(impact)
N/A
(impact)
2019-02-20[45] 14–59 0.12 260,000,000 -2.901 align=center-8.73 4.4AU 4.1AU
2019-02-22 6–20 0.071 1,500,000 -0.914 align=center-6.47 1.5AU 1.3AU
2019-02-28 6–20 0.071 4,300,000 -1.271 align=center-6.90 1.5AU 1.3AU
2019-03-01[46] [47] 3–8 0.040 1,400,000,000 1.826 align=center-9.38 1.2AU 1.3AU
2019-03-02 6–20 0.071 8,300,000 -1.469 align=center-7.14 1.5AU 1.3AU
2019-03-02 3–8 0.040 830,000,000 2.221 align=center-9.34 1.2AU 1.3AU
2019-03-03 6–20 0.071 45,000,000 -2.055 align=center-7.80 1.5AU 1.3AU
2019-03-03 6–20 0.071 16,000,000 -1.712 align=center-7.41 1.5AU 1.3AU
2019-03-03 3–8 0.040 200,000,000 1.940 align=center-8.93 1.2AU 1.3AU
2019-03-03 3–8 0.040 71,000,000 1.771 align=center-8.70 1.2AU 1.3AU
2019-03-04 5–16 0.043 130,000,000 1.257 align=center-7.96 0.15AU 2.2AU
2019-03-09 6–20 0.071 5,000,000,000 3.289 align=center-8.75 1.5AU 1.3AU
2019-03-10 6–20 0.071 830,000,000 2.871 align=center-8.09 1.5AU 1.3AU
2019-03-10 6–20 0.071 91,000,000 2.767 align=center-7.53 1.5AU 1.3AU
2019-03-11[48] [49] 7–22 0.11 6,700,000 1.207 align=center-6.51 0.37AU 2.3AU
2019-03-11 7–22 0.11 480,000 0.652 align=center-5.47 0.37AU 2.3AU
2019-03-12 6–20 0.071 3,600,000 1.085 align=center-6.47 1.5AU 1.3AU
2019-03-12 7–22 0.11 11,000,000 1.823 align=center-6.94 0.37AU 2.3AU
2019-03-14 7–22 0.11 830,000,000 2.905 align=center-8.91 0.37AU 2.4AU
2019-04-03[50] [51] 10–33 1.0 590,000,000 2.345 align=center-8.13 2AU 2.7AU
2019-04-03[52] 220–710 0.94 2,100,000,000 0.441 align=center-4.95 3.5AU 1.2AU
2019-04-09 10–33 1.0 6,200,000,000 3.011 align=center-8.98 2AU 2.8AU
2019-04-18[53] 2008 US[54] 1–4 0.081 43,000,000 -1.780 align=center-9.20 2.6AU 2.7AU
2019-04-18 2008 US 1–4 0.081 710,000 -1.526 align=center-7.39 2.6AU 2.7AU
2019-04-29[55] 7–28 0.18 91,000,000 1.988 align=center-6.92 2.2AU 2.2AU
2019-05-01 10–35 0.16 310,000,000 -2.900 align=center-8.79 1.4AU 1.5AU
2019-05-04[56] 16–40 0.95 91,000,000 -3.804 align=center-7.23 2.8AU 2.8AU
2019-05-07 5–16 0.043 260,000,000 1.252 align=center-7.82 0.67AU 1.5AU
2019-05-21 N/A (not discovered
before impact
5 N/A 1 0.000 0 N/A
(impact)
N/A
(impact)
2019-06-03[57] [58] 3–10 0.045 400,000 -0.302 align=center-5.66 0.45AU 0.72AU
2019-06-03 3–10 0.045 25,000,000 2.025 align=center-7.89 0.45AU 0.72AU
2019-06-04 3–10 0.045 480,000,000 3.015 align=center-9.33 0.46AU 0.72AU
2019-06-04 3–10 0.045 670,000 0.351 align=center-6.63 0.46AU 0.72AU
2019-06-04 3–10 0.045 1,500,000 0.855 align=center-7.12 0.46AU 0.73AU
2019-06-12 92–300 1.0 1,200,000,000 0.518 align=center-6.13 1.1AU 1.1AU
2019-06-22 6 0.095 1 0.000 >0 4E-05AU
(impact)
4E-05AU
(impact)
2019-07-07[59] 28–90 0.96 59,000,000 -3.714 align=center-6.25 0.94AU 0.82AU
2019-07-07[60] 5–17 0.043 590,000,000 0.765 align=center-7.85 0.72AU 0.75AU
2019-07-13[61] 53–250 0.87 1,700,000,000 -2.219 align=center-6.56 1.1AU 0.15AU
2019-07-21[62] 5–16 0.12 260,000,000 3.036 align=center-8.26 3.1AU 3.1AU
2019-08-19[63] 270–860 1.8 710,000,000 0.809 align=center-4.47 1.3AU 1.3AU
2019-08-30[64] 18–57 1.0 450,000,000 -1.745 align=center-7.54 2.1AU 2.1AU
2019-09-07 7–22 0.11 220,000,000 2.279 align=center-8.32 0.99AU 2.2AU
2019-09-09[65] 18–59 9.9 20,000 2.894 align=center-3.32 0.061AU 0.054AU
2019-09-11 7–22 0.11 830,000,000 -1.445 align=center-8.40 0.97AU 2.1AU
2019-09-12 7–22 0.11 710,000,000 -0.811 align=center-8.51 0.97AU 2.1AU
2019-09-12 7–22 0.11 110,000,000 -0.815 align=center-7.72 0.97AU 2.1AU
2019-09-13 7–22 0.11 310,000,000 -1.036 align=center-8.06 0.97AU 2.1AU
2019-09-13 7–22 0.11 2,400,000,000 -1.783 align=center-8.73 0.97AU 2.1AU
2019-09-20 92–300 1.0 7,700,000,000 0.093 align=center-6.63 2AU 2AU
2019-09-22[66] 18–57 0.60 30,000,000 1.308 align=center-6.31 1.5AU 1.4AU
2019-09-23 92–300 1.0 7,700,000,000 -2.410 align=center-6.99 2AU 2AU
2019-10-03[67] 210–680 1.2 11,000,000 -1.652 align=center-3.17 0.93AU 1.1AU
2019-10-07[68] 13–41 0.10 1,600,000,000 3.550 align=center-8.39 5.3AU 5.4AU
2019-10-09 92–300 1.0 340,000,000 -0.355 align=center-5.78 2.1AU 2.1AU
2019-10-11[69] [70] 8–26 0.027 42,000,000 2.475 align=center-7.08 2.6AU 1.4AU
2019-10-27[71] [72] 8–26 0.96 9,100,000,000 -3.524 align=center-9.07 2.9AU 2.9AU
2019-10-28 8–26 0.96 910,000,000 -3.002 align=center-8.30 2.9AU 2.9AU
2019-10-28[73] 2008 VL 6–22 0.12 1,500,000,000 -3.610 align=center-9.35 2AU 2AU
2019-10-29 8–26 0.96 770,000,000 -3.196 align=center-8.45 2.9AU 2.9AU
2019-11-01[74] 11–31 0.064 38,000,000 -0.745 align=center-7.29 2.2AU 2.1AU
2019-11-10[75] [76] 13–41 0.046 12,000,000 -2.326 align=center-7.86 1.7AU 1.7AU
2019-11-12 13–41 0.046 15,000,000 -2.088 align=center-8.00 1.7AU 1.7AU
2019-11-12 5–16 0.043 430,000,000 -1.453 align=center-8.42 2.9AU 1.2AU
2019-11-13 13–41 0.046 56,000,000 -2.556 align=center-8.41 1.7AU 1.7AU
2019-11-13 13–41 0.046 4,000,000,000 3.632 align=center-10.1 1.7AU 1.7AU
2019-11-14 5–16 0.043 29,000,000 0.995 align=center-7.78 2.9AU 1.2AU
2019-11-16[77] [78] 29–87 0.083 5,600,000,000 3.255 align=center-7.62 1.8AU 4.2AU
2019-11-16 5–16 0.043 100,000,000 1.284 align=center-7.90 2.9AU 1.2AU
2019-11-17 29–87 0.083 1,100,000,000 2.834 align=center-7.02 1.8AU 4.2AU
2019-11-19[79] [80] 8–25 0.087 910,000,000 4.019 align=center-8.84 3.4AU 2.4AU
2019-11-21[81] [82] 10–31 0.17 1,800,000,000 -2.868 align=center-8.06 0.33AU 0.26AU
2019-11-23[83] 180–590 0.96 290,000,000 1.115 align=center-4.27 3.4AU 3.3AU
2019-11-23[84] 12–39 0.13 280,000,000 -0.878 align=center-7.81 2.5AU 2.5AU
2019-12-06 8–25 0.087 200,000,000 -2.287 align=center-7.98 3.6AU 2.5AU
2019-12-06 10–31 0.17 220,000,000 2.469 align=center-7.72 0.39AU 0.32AU
2019-12-08 3–12 0.058 5,900,000,000 3.630 align=center-10.2 2.5AU 2.5AU
2019-12-09 3–12 0.058 710,000,000 3.253 align=center-9.51 2.5AU 2.5AU
2019-12-14 29–87 0.083 53,000,000 1.138 align=center-6.32 1.7AU 4.1AU
2019-12-15[85] [86] 11–34 6.8 (2.8) 0 (1,300,000,000) N/A (0.741) N/A (-8.10) 0.94AU 0.94AU
2019-12-15 11–34 6.8 (2.8) 0 (400,000,000) N/A (0.733) N/A (-7.86) 0.94AU 0.94AU
2019-12-16[87] 9–30 0.066 120,000,000 1.760 align=center-7.51 0.46AU 0.97AU
2019-12-17 11–34 6.8 (2.8) 0 (150,000,000) N/A (-0.905) N/A (-7.75) 0.94AU 0.94AU
2019-12-18[88] [89] 28–130 1.9 5,300,000,000 3.220 align=center-8.03 3.4AU 5.4AU
2019-12-18 28–130 1.9 500,000,000 -2.460 align=center-6.84 3.4AU 5.4AU
2019-12-18 28–130 1.9 1,300,000,000 -2.461 align=center-7.25 3.4AU 5.4AU
2019-12-19 11–34 6.8 (2.8) 0 (91,000,000) N/A (-1.732) N/A (-7.87) 0.95AU 0.95AU
2019-12-24 11–34 6.8 (2.8) 0 (710,000,000) N/A (-3.598) N/A (-9.23) 0.96AU 0.96AU
2019-12-25 8–25 0.087 260,000,000 3.252 align=center-8.39 3.7AU 2.6AU
2019-12-26[90] 68–210 0.76 590,000,000 2.440 align=center-6.39 1.2AU 1.1AU
2019-12-28[91] 1000–3100 3.3 1,400,000,000 -0.862 align=center-3.38 2.2AU Not listed
2019-12-28 92–300 1.0 450,000,000 -0.451 align=center-5.91 2.3AU 2.3AU
2019-12-29 10–35 0.16 3,300,000,000 2.902 align=center-8.39 1.6AU 1.7AU

Notes

See also

External links

Notes and References

  1. For a list of current Earth close approaches see NEO Earth Close Approaches
  2. Web site: JPL Small-Body Database Browser: (2019 FC1). Jet Propulsion Laboratory.
  3. passed Earth with a velocity with respect to Earth of 25.9 km/s and was moving away from the Sun at 37.1 km/s.
  4. Distance from the center of Earth to the center of the object. See the NASA/JPL Solar System Dynamics Glossary: Geocentric. Earth has a radius of approximately 6,400 km.
  5. Web site: JPL Small-Body Database Browser . JPL Solar System Dynamics . NASA Jet Propulsion Laboratory.
  6. Web site: MPC Database . IAU Minor Planet Center . International Astronomical Union . 1 January 2021.
  7. Distance error: 0.0012 AU, approach range: 0.40 to 1.36 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  8. Distance error: 0.000420 AU, approach range: 0.016 to 0.25 LD. There was a roughly 2% chance of impact. The asteroid is most likely between 1 and 14 meters across, so would probably be detectable. The asteroid is unconfirmed and will likely never receive a provisional designation.
  9. distance error: 0.0008 AU, approach range: 0.27 to 0.90 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  10. distance error: 0.0010 AU, approach range: 0.30 to 1.07 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  11. the asteroid is unconfirmed and will likely never receive a provisional designation.
  12. distance error: 0.0004 AU, approach range: 0.39 to 0.70 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  13. distance error: 0.00013 AU. The asteroid is unconfirmed and will likely never receive a provisional designation. The asteroid may have impacted Earth.
  14. distance error: 0.00020 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  15. distance error: 0.00000085 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  16. distance error: 0.00032 AU. The asteroid is unconfirmed and will likely never receive a provisional designation.
  17. Web site: Small Asteroid 2019 MO (NEOCP A10eoM1) impacted Earth on June 22 . Guido . Ernesto . Comets & Asteroids news (remanzacco) . 28 December 2019.
  18. Web site: Breakthrough: UH team successfully locates incoming asteroid . Gal . Roy . University of Hawaii . 26 June 2019.
  19. 2019-07-04 is the official first observation date for this asteroid, credited to the SONEAR Observatory, Oliveira by the Minor Planet Center. However the object had been observed several times by other telescopes in the run up, but had not been recognised as an asteroid by their automated systems. See for more details
  20. Distance from the center of the Moon to the center of the object. The Moon has a radius of approximately 1,740 km.
  21. Distance error: 0.0010 AU, approach range: 0.54 to 1.32 LD. The asteroid is unconfirmed and will likely never receive a provisional designation.
  22. the asteroid is unconfirmed and will likely never receive a provisional designation.
  23. 2012 KT12 could have potentially passed less than 1 lunar distance to Earth, but the chances were fairly low and as such it was not listed in the main table unless followup observations confirmed that it would pass less than 1 LD from Earth. It was recovered on 2 May 2019.
  24. This is a measurement of how far off of the "best fit" orbit the asteroid would have to have for it to hit at this time. Further values from 0 mean that the measured positions of the asteroid used to calculate its orbit would need to be highly inaccurate for it to hit Earth. For reference, 1.0/-1.0=31.7% odds the observations would be this inaccurate, 2.0/-2.0=4.6% odds, 3.0/-3.0=0.27% odds.
  25. Web site: Sentry: 2005 NX55 (archived) . https://archive.today/20181230010944/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2005%20NX55 . dead . 2018-12-30 . computed on 2017-04-09.
  26. Web site: Sentry: 2010 JA43 (archived) . https://archive.today/20181230204144/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20JA43 . dead . 2018-12-30 . computed on 2018-10-03.
  27. Web site: Sentry: 2014 HN198 (archived) . https://archive.today/20181230202256/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20HN198 . dead . 2018-12-30 . computed on 2017-04-07.
  28. 2014 HN198 was ruled out as a potential impactor after further observations from Cerro Tololo, improving the orbit enough to determine that it won't hit Earth.
  29. Web site: Sentry: 2010 DG77 (archived) . https://archive.today/20181230194632/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20DG77 . dead . 2018-12-30 . computed on 2017-04-07.
  30. has a cumulative probability of 1 in 195,000,000 (Palermo scale -6.89) of impacting Earth in 2019.
  31. This listing is compiled from 3 separate virtual impacts at the exact same time, and simply spread out by several sigma. The probabilities are updated to reflect the duplicated listings.
  32. Web site: Sentry: 2008 EL68 (archived) . https://archive.today/20181230020601/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20EL68 . 2018-12-30 . dead. computed on 2017-04-09.
  33. has a cumulative probability of 1 in 703,000 (Palermo scale -6.14) of impacting Earth in 2019.
  34. Web site: Sentry: 2016 AZ193 (archived) . https://archive.today/20180128114119/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2016%20AZ193 . 2018-01-28 . dead. computed on 2017-04-06.
  35. has a cumulative probability of 1 in 223,000,000 (Palermo scale -8.00) of impacting Earth in 2019.
  36. Web site: Sentry: 2010 XC (archived) . https://archive.today/20180128102724/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20XC . dead. 2018-01-28. computed on 2017-04-07.
  37. 2010 XC has a cumulative probability of 1 in 16,600,000 (Palermo scale -7.90) of impacting Earth in 2019.
  38. Web site: CNEOS Fireball and Bolide Data.
  39. Web site: Sentry: 2015 HV182 (archived) . https://archive.today/20170414004204/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2015%20HV182 . 2017-04-14 . dead. computed on 2017-04-06.
  40. has a cumulative probability of 1 in 140,000,000 (Palermo scale -5.39) of impacting Earth in 2019.
  41. Web site: Sentry: 2009 VZ39 (archived) . https://archive.today/20181230060526/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2009%20VZ39 . 2018-12-30 . dead. computed on 2017-04-06.
  42. has a cumulative probability of 1 in 16,200,000 (Palermo scale -7.53) of impacting Earth in 2019.
  43. Web site: Sentry: 2011 CF66 (archived) . https://archive.today/20180128122954/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2011%20CF66 . 2018-01-28 . dead. computed on 2017-04-07.
  44. has a cumulative probability of 1 in 50,800,000 (Palermo scale -7.75) of impacting Earth in 2019.
  45. Web site: Sentry: 2008 JD33 (archived) . https://archive.today/20180129034403/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20JD33 . dead. 2018-01-29. computed on 2017-04-06.
  46. Web site: Sentry: 2008 EK68 (archived) . https://archive.today/20180129033950/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20EK68 . dead. 2018-01-29. computed on 2017-04-06.
  47. has a cumulative probability of 1 in 47,600,000 (Palermo scale -8.08) of impacting Earth in 2019.
  48. Web site: Sentry: 2008 EM68 . https://archive.today/20180128121025/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20EM68 . dead . 2018-01-28 . computed on 2017-04-07.
  49. has a cumulative probability of 1 in 427,000 (Palermo scale -5.42) of impacting Earth in 2019.
  50. Web site: Sentry: 2014 HG196 (archived) . https://archive.today/20180129032841/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20HG196 . 2018-01-29 . dead. computed on 2017-04-08.
  51. has a cumulative probability of 1 in 539,000,000 (Palermo scale -8.09) of impacting Earth in 2019.
  52. Web site: Sentry: 2014 MV67 (archived) . https://archive.today/20180128092112/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20MV67 . dead . 2018-01-28 . computed on 2017-04-06.
  53. Web site: Sentry: 2008 US (archived) . computed on 2017-04-07.
  54. 2008 US has a cumulative probability of 1 in 698,000 (Palermo scale -7.38) of impacting Earth in 2019.
  55. Web site: Sentry: 2017 UK52 (archived) . https://archive.today/20181230201834/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2017%20UK52 . dead . 2018-12-30 . computed on 2017-12-15.
  56. Web site: Sentry: 2014 MA68 (archived) . https://archive.today/20181230044557/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20MA68 . dead . 2018-12-30 . computed on 2017-04-07.
  57. Web site: Sentry: 2014 LY21 (archived) . https://archive.today/20181230041327/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20LY21 . dead . 2018-12-30 . computed on 2017-04-08.
  58. has a cumulative probability of 1 in 213,000 (Palermo scale -5.39) of impacting Earth in 2019.
  59. Web site: Sentry: 2014 CH13 (archived) . https://archive.today/20181230055305/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20CH13 . dead . 2018-12-30 . computed on 2017-04-20.
  60. Web site: Sentry: 2011 AE3 (archived) . https://archive.today/20181230195534/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2011%20AE3 . dead . 2018-12-30 . computed on 2017-04-09.
  61. Web site: Sentry: 2004 ME6 (archived) . https://archive.today/20181230010448/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2004%20ME6 . dead . 2018-12-30 . computed on 2017-04-12.
  62. Web site: Sentry: 2012 BL14 (archived) . https://archive.today/20181230052900/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2012%20BL14. dead. 2018-12-30. computed on 2017-04-70.
  63. Web site: Sentry: 2015 ME131 (archived) . https://archive.today/20170731190701/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2015%20ME131 . dead . 2017-07-31 . computed on 2017-04-08.
  64. Web site: Sentry: 2015 HW182 (archived) . https://archive.today/20180129031647/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2015%20HW182 . dead. 2018-01-29. computed on 2017-04-14.
  65. Web site: Sentry: 2006 QV89 (archived) . https://archive.today/20181229211805/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2006%20QV89 . 2018-12-29 . dead. computed on 2017-04-08.
  66. Web site: Sentry: 2009 FZ4 (archived) . https://archive.today/20180129012319/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2009%20FZ4. 2018-01-29. dead. computed on 2017-04-11.
  67. Web site: Sentry: 2007 FT3 (archived) . https://archive.today/20181230025646/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2007%20FT3. dead. 2018-12-30. computed on 2017-04-11.
  68. Web site: Sentry: 2008 SH148 (archived) . https://archive.today/20181230065512/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20SH148. 2018-12-30. dead. computed on 2017-04-08.
  69. Web site: Sentry: 2006 SF281 (archived) . https://archive.today/20181230055804/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2006%20SF281. dead. 2018-12-30. computed on 2017-04-08.
  70. This listing is compiled from 16 separate virtual impacts at the exact same time, and simply spread out by several sigma. The probabilities are updated to reflect the duplicated listings.
  71. Web site: Sentry: 2014 HR197 (archived) . https://archive.today/20180128103800/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20HR197. 2018-01-28. dead. computed on 2017-04-09.
  72. has a cumulative probability of 1 in 399,000,000 (Palermo scale -8.16) of impacting Earth in 2019.
  73. Web site: Sentry: 2008 VL (archived) . https://archive.today/20180129022226/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20VL. 2018-01-29. dead. computed on 2017-04-08.
  74. Web site: Sentry: 2010 VR139 (archived) . https://archive.today/20181229233829/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20VR139. 2018-12-29. dead. computed on 2017-04-07.
  75. Web site: Sentry: 2010 VP139 (archived) . https://archive.today/20180129022526/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20VP139. dead. 2018-01-29. computed on 2017-04-07.
  76. has a cumulative probability of 1 in 5,950,000 (Palermo scale -7.56) of impacting Earth in 2019.
  77. Web site: Sentry: 2008 VS4 (archived) . https://archive.today/20171020164145/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20VS4. 2017-10-20. dead. computed on 2017-04-08.
  78. has a cumulative probability of 1 in 50,100,000 (Palermo scale -6.30) of impacting Earth in 2019.
  79. Web site: Sentry: 2008 XK (archived) . https://archive.today/20181230011632/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2008%20XK. 2018-12-30. dead. computed on 2017-04-07.
  80. 2008 XK has a cumulative probability of 1 in 101,000,000 (Palermo scale -7.68) of impacting Earth in 2019.
  81. Web site: Sentry: 2017 WF30 (archived) . https://archive.today/20181230200955/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2017%20WF30. 2018-12-30. dead. computed on 2018-01-07.
  82. has a cumulative probability of 1 in 196,000,000 (Palermo scale -7.67) of impacting Earth in 2019.
  83. Web site: Sentry: 2017 RZ17 (archived) . https://archive.today/20181230030108/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2017%20RZ17. 2018-12-30. dead. computed on 2018-02-08.
  84. Web site: Sentry: 2007 YM (archived) . https://archive.today/20171020164350/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2007%20YM. 2017-10-20. dead. computed on 2017-04-08.
  85. Web site: Sentry: 2014 JT79 (archived) . https://archive.today/20180129015908/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2014%20JT79. 2018-01-29. dead. computed on 2017-04-06.
  86. had a cumulative probability of 1 in 44,800,000 (Palermo scale -7.56) of impacting Earth in 2019. It was ruled out as a potential impactor after further observations from Cerro Tololo, improving the orbit enough to determine that it won't hit Earth.
  87. Web site: Sentry: 2010 WW8 (archived) . https://archive.today/20180128103213/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20WW8. 2018-01-28. dead. computed on 2017-04-09.
  88. Web site: Sentry: 2005 TM173 (archived) . https://archive.today/20181230045723/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2005%20TM173. dead. 2018-12-30. computed on 2017-04-08.
  89. has a cumulative probability of 1 in 338,000,000 (Palermo scale -6.67) of impacting Earth in 2019.
  90. Web site: Sentry: 2016 RP41 (archived) . https://archive.today/20181230024551/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2016%20RP41. dead. 2018-12-30. computed on 2017-04-08.
  91. Web site: Sentry: 2010 GD37 (archived) . https://archive.today/20181230003617/https://cneos.jpl.nasa.gov/sentry/details.html%23?des=2010%20GD37. dead. 2018-12-30. computed on 2018-10-03.