List of asteroid close approaches to Earth in 2023 explained

Time of discovery of asteroids which passed within 1 lunar distance from Earth in 2023
Other Years
Caption:Years
Below:2021, 2022, 2023, 2024, 2025

Below is the list of asteroids that have come close to Earth in 2023.

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 2023. As most asteroids passing within a lunar distance are less than 40 meters in diameter, they generally are not detected until they are within several million km of Earth. Objects coming from the direction of the Sun may not be publicly announced until a few days after closest approach. For example, was first imaged six hours after closest approach, then confirmed by other observations, but not officially announced until 3.5 days after closest approach. that approached from the direction of the Sun was not first observed until 3.6 days after closest approach. The largest asteroid on this list that is risk–listed is at about 17 meters in diameter with a 3.5-day observation arc and a 1: chance of Earth impact on 2118 September 24.[1]

For reference, the radius of Earth is about 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.

Date of
closest
approach		Discovery[2] Object<-- DO NOT INCLUDE UNCONFIRMED OBJECTS HERE -->Nominal geocentric distance[3] Uncertainty
region
(3-sigma)		Approx.
size (m)		(H)
(abs. mag)		Closer
approach
to Moon
[4]
data-sort-type="number"(AU)data-sort-type="number"(Lunar
distance)
2023-01-12[5] 2023-01-13
G96 Mt. Lemmon Survey[6] 		0.00163AU align=center 0.63 align=center ± 1083 km[7] align=center 4.4–9.8 align=center 29.0 align=center —
2023-01-12[8] 2023-01-13
703 Catalina Sky Survey[9] 		0.000104AU align=center 0.04 align=center ± 393 km[10] align=center 2.0–4.5 align=center 30.6 align=center —
2023-01-21[11] 2023-01-22
F52 Pan-STARRS 2[12] 		0.00169AU align=center 0.66 align=center ± 283 km[13] align=center 3.3–7.4 align=center 29.5 align=center
2023-01-25[14] 2023-01-27
G96 Mt. Lemmon Survey[15] 		0.00224AU align=center 0.87 align=center ± 642 km[16] align=center 5.6–13 align=center 28.4 align=center —
2023-01-25[17] 2023-01-18
F52 Pan-STARRS 2[18] 		0.0015AU align=center 0.58 align=center ± 236 km[19] align=center 15–33 align=center 26.3 align=center —
2023-01-26[20] 2023-01-24
F52 Pan-STARRS 2[21] 		0.00248AU align=center 0.97 align=center ± 474 km[22] align=center 4.7–10 align=center 28.8 align=center —
2023-01-27[23] 2023-01-21
L51 Gennadiy Borisov[24] 		6.7E-05AU align=center 0.03 align=center ± 2 km[25] align=center 3.4–7.5 align=center 29.5 align=center —
2023-01-27[26] 2023-01-26
G96 Mt. Lemmon Survey[27] 		0.00188AU align=center 0.73 align=center ± 665 km[28] align=center 4.1–9.1 align=center 29.1 align=center —
2023-01-30[29] 2023-02-01
M22 ATLAS South Africa[30] 		0.0007AU align=center 0.27 align=center ± 234 km[31] align=center 11–24 align=center 27.0 align=center —
2023-01-30[32] 2023-01-29
K88 GINOP-KHK, Piszkesteto[33] 		0.00248AU align=center 0.97 align=center ± 525 km[34] align=center 4.7–10 align=center 28.8 align=center [35]
2023-02-09[36] 2023-02-12
G96 Mt. Lemmon Survey[37] 		0.00184AU align=center 0.71 align=center ± 5086 km[38] align=center 3.9–8.7 align=center 29.2 align=center —
2023-02-13[39] 2023-02-12
K88 GINOP-KHK, Piszkesteto[40] 		Impact align=center Impact align=center Impact align=center 0.8–1.8 align=center 32.6 align=center —
2023-02-25[41] 2023-02-24
K88 GINOP-KHK, Piszkesteto[42] 		0.00051AU align=center 0.20 align=center ± 65 km[43] align=center 2.8–6.3 align=center 29.9 align=center —
2023-03-09[44] 2023-03-10
703 Catalina Sky Survey[45] 		0.00091AU align=center 0.35 align=center ± 260 km[46] align=center 6.7–15 align=center 28.0 align=center —
2023-03-12[47] 2023-03-14
G96 Mt. Lemmon Survey[48] 		0.00105AU align=center 0.41 align=center ± 3292 km[49] align=center 2.1–4.7 align=center 30.5 align=center —
2023-03-17[50] 2023-03-13
M22 ATLAS South Africa[51] 		0.0016AU align=center 0.62 align=center ± 152 km[52] align=center 12–26 align=center 26.8 align=center —
2023-03-19[53] 2023-03-17
I41 Palomar Mountain--ZTF[54] 		0.00231AU align=center 0.90 align=center ± 662 km[55] align=center 3.5–7.9 align=center 29.4 align=center —
2023-03-25[56] 2023-03-26
F51 Pan-STARRS 1[57] 		0.00152AU align=center 0.59 align=center ± 426 km[58] align=center 4.1–9.1 align=center 29.1 align=center —
2023-03-25[59] 2023-02-27
950 La Palma[60] 		0.00116AU align=center 0.45 align=center ± 27 km[61] align=center 40–90 align=center 24.2 align=center —
2023-03-30[62] 2023-03-28
G96 Mt. Lemmon Survey[63] 		0.00111AU align=center 0.43 align=center ± 358 km[64] align=center 4.7–11 align=center 28.7 align=center —
2023-04-11[65] 2023-04-11
K88 GINOP-KHK, Piszkesteto[66] 		0.00089AU align=center 0.35 align=center ± 142 km[67] align=center 5.5–12 align=center 28.4 align=center —
2023-04-11[68] 2023-04-14
F52 Pan-STARRS 2[69] 		0.00173AU align=center 0.67 align=center ± 908 km[70] align=center 5.1–11 align=center 28.6 align=center —
2023-04-14[71] 2023-04-16
W68 ATLAS Chile[72] 		0.00205AU align=center 0.80 align=center ± 719 km[73] align=center 7.9–18 align=center 27.6 align=center —
2023-04-15[74] 2023-04-16
G96 Mt. Lemmon Survey[75] 		0.00192AU align=center 0.75 align=center ± 1156 km[76] align=center 4.1–9.3 align=center 29.0 align=center —
2023-04-17[77] 2023-04-16
G96 Mt. Lemmon Survey[78] 		0.0013AU align=center 0.51 align=center ± 754 km[79] align=center 2.2–4.8 align=center 30.5 align=center —
2023-04-18[80] 2023-04-16
F52 Pan-STARRS 2[81] 		0.00096AU align=center 0.37 align=center ± 153 km[82] align=center 4.5–10 align=center 28.9 align=center —
2023-04-18[83] 2023-04-17
G96 Mt. Lemmon Survey[84] 		0.00096AU align=center 0.37 align=center ± 150 km[85] align=center 2.7–6.1 align=center 29.9 align=center —
2023-04-20[86] 2023-04-17
G96 Mt. Lemmon Survey[87] 		0.00228AU align=center 0.89 align=center ± 655 km[88] align=center 10–23 align=center 27.1 align=center
2023-04-23[89] 2023-04-22
G96 Mt. Lemmon Survey[90] 		0.0014AU align=center 0.54 align=center ± 261 km[91] align=center 4.4–9.8 align=center 28.9 align=center —
2023-04-30[92] 2023-04-29
G96 Mt. Lemmon Survey[93] 		0.00155AU align=center 0.60 align=center ± 269 km[94] align=center 5.2–12 align=center 28.5 align=center
2023-05-09[95] 2023-05-09
703 Catalina Sky Survey[96] 		0.00062AU align=center 0.24 align=center ± 3596 km[97] align=center 3.9–8.8 align=center 29.1 align=center —
2023-05-09[98] 2023-05-08
703 Catalina Sky Survey[99] 		0.00214AU align=center 0.83 align=center ± 177 km[100] align=center 8.2–18 align=center 27.6 align=center
2023-05-12[101] 2023-05-13
G96 Mt. Lemmon Survey[102] 		0.00088AU align=center 0.34 align=center ± 523 km[103] align=center 3.1–6.9 align=center 29.7 align=center —
2023-05-17[104] 2023-05-19
G03 Capricornus Observatory, Csokako[105] 		0.00112AU align=center 0.43 align=center ± 279 km[106] align=center 6.0–13 align=center 28.2 align=center —
2023-05-22[107] 2023-05-20
G96 Mt. Lemmon Survey[108] 		0.00157AU align=center 0.61 align=center ± 334 km[109] align=center 8.0–18 align=center 27.6 align=center —
2023-05-27[110] 2023-05-28
703 Catalina Sky Survey[111] 		0.00231AU align=center 0.90 align=center ± 1419 km[112] align=center 8.4–19 align=center 27.5 align=center —
2023-05-27[113] 2023-05-28
703 Catalina Sky Survey[114] 		0.00194AU align=center 0.76 align=center ± 627 km[115] align=center 6.3–14 align=center 28.1 align=center
2023-06-07[116] 2023-06-07
703 Catalina Sky Survey[117] 		0.00181AU align=center 0.71 align=center ± 89 km[118] align=center 5.1–11 align=center 28.6 align=center —
2023-06-09[119] 2023-06-10
W68 ATLAS Chile[120] 		0.00059AU align=center 0.23 align=center ± 49 km[121] align=center 2.8–6.2 align=center 29.9 align=center —
2023-06-13[122] 2023-06-14
G96 Mt. Lemmon Survey[123] 		0.00171AU align=center 0.67 align=center ± 496 km[124] align=center 3.1–7.0 align=center 29.6 align=center —
2023-06-14[125] 2023-06-10
F52 Pan-STARRS 2[126] 		0.00212AU align=center 0.83 align=center ± 612 km[127] align=center 14–32 align=center 26.4 align=center —
2023-06-15[128] 2023-06-14
G96 Mt. Lemmon Survey[129] 		0.00074AU align=center 0.29 align=center ± 99 km[130] align=center 5.5–12 align=center 28.4 align=center —
2023-06-17[131] 2023-06-15
F52 Pan-STARRS 2[132] 		0.00105AU align=center 0.41align=center ± 80 km[133] align=center 2.6–5.8 align=center 30.1 align=center —
2023-06-20[134] 2023-06-21
F51 Pan-STARRS 1[135] 		0.00105AU align=center 0.41 align=center ± 188 km[136] align=center 2.8–6.3 align=center 29.9 align=center —
2023-06-20[137] 2023-06-24[138]
W94 MAP, San Pedro de Atacama[139] 		0.00194AU align=center 0.75 align=center ± 1570 km[140] align=center 13–28 align=center 26.6 align=center —
2023-06-23[141] 2023-06-22
G96 Mt. Lemmon Survey[142] 		0.00083AU align=center 0.32 align=center ± 62 km[143] align=center 2.7–6.0 align=center 30.0 align=center —
2023-06-24[144] 2023-06-21
F51 Pan-STARRS 1[145] 		0.00174AU align=center 0.68 align=center ± 315 km[146] align=center 5.7–13 align=center 28.4 align=center —
2023-06-25[147] 2023-06-21
F51 Pan-STARRS 1[148] 		0.00145AU align=center 0.57 align=center ± 102 km[149] align=center 3.9–8.6 align=center 29.2 align=center —
2023-07-05[150] 2023-07-08
G96 Mt. Lemmon Survey[151] 		0.00255AU align=center 0.99 align=center ± 1915 km[152] align=center 5.3–12 align=center 28.5 align=center —
2023-07-13[153] 2023-07-15
M22 ATLAS South Africa[154] 		0.00067AU align=center 0.26 align=center ± 135 km[155] align=center 26–59 align=center 25.0 align=center —
2023-08-18[156] 2023-08-20
K88 GINOP-KHK, Piszkesteto[157] 		0.00045AU align=center 0.17 align=center ± 654 km[158] align=center 5.1–11 align=center 28.6 align=center —
2023-08-19[159] 2023-08-20
K88 GINOP-KHK, Piszkesteto[160] 		0.00072AU align=center 0.28 align=center ± 115 km[161] align=center 5.1–11 align=center 28.6 align=center —
2023-08-20[162] 2023-08-19
F51 Pan-STARRS 1[163] 		0.00139AU align=center 0.54 align=center ± 241 km[164] align=center 3.7–8.4 align=center 29.3 align=center —
2023-09-05[165] 2023-09-08
F51 Pan-STARRS 1[166] 		0.00234AU align=center 0.91 align=center ± 832 km[167] align=center 4.6–10 align=center 28.8 align=center —
2023-09-07[168] 2023-09-07
G96 Mt. Lemmon Survey[169] 		7E-05AU align=center 0.03 align=center ± 13 km[170] align=center 0.9–2 align=center 32.2 align=center —
2023-09-07[171] 2023-09-10
W94 MAP, San Pedro de Atacama[172] 		0.0025AU align=center 0.97 align=center ± 7613 km[173] align=center 16–32 align=center 26.1 align=center —
2023-09-08[174] 2023-09-09
G96 Mt. Lemmon Survey[175] 		0.00127AU align=center 0.49 align=center ± 431 km[176] align=center 6–13 align=center 28.3 align=center —
2023-09-09[177] 2023-09-10
L51 Gennadiy Borisov[178] 		0.00188AU align=center 0.73 align=center ± 449 km[179] align=center 4–9 align=center 29.1 align=center —
2023-09-13[180] 2023-09-11
F52 Pan-STARRS 2[181] 		0.00139AU align=center 0.54 align=center ± 121 km[182] align=center 5–11 align=center 28.7 align=center —
2023-09-16[183] 2023-09-18
G96 Mt. Lemmon Survey[184] 		0.00117AU align=center 0.45 align=center ± 1233 km[185] align=center 5–11 align=center 28.6 align=center —
2023-09-18[186] 2023-09-19
G96 Mt. Lemmon Survey[187] 		0.00116AU align=center 0.45 align=center ± 411 km[188] align=center 3.7–8.4 align=center 29.3 align=center —
2023-09-20[189] 2023-09-19
G96 Mt. Lemmon Survey[190] 		0.00222AU align=center 0.86 align=center ± 390 km[191] align=center 3.7–8.2 align=center 29.3 align=center
2023-09-20[192] 2023-09-21
703 Catalina Sky Survey[193] 		0.00035AU align=center 0.14 align=center ± 206 km[194] align=center 5–11 align=center 28.7 align=center —
2023-09-23[195] 2023-09-19
F52 Pan-STARRS 2[196] 		0.00251AU align=center 0.98 align=center ± 1327 km[197] align=center 14–30 align=center 26.5 align=center
2023-09-24[198] 2023-09-18
F52 Pan-STARRS 2[199] 		0.0022AU align=center 0.86 align=center ± 247 km[200] align=center 13–29 align=center 26.6 align=center —
2023-09-25[201] 2023-09-26
K88 GINOP-KHK, Piszkesteto[202] 		0.00036AU align=center 0.14 align=center ± 35 km[203] align=center 1.3–2.8 align=center 31.6 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.

Absolute magnitude 30 and greater (size of a person for comparison)Absolute magnitude 29-30Absolute magnitude 28-29Absolute magnitude 27-28Absolute magnitude 26-27

Absolute magnitude 25-26

Absolute magnitude less than 25 (largest)

Notes

Beyond 1 LD

Below is an example list of near-Earth asteroids that nominally will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2023. During 2022, over 1,000 asteroids passed within 10LD of Earth.

Objectdata-sort-type="number"Size
(meters)		data-sort-type="number"Nearest approach
(lunar
distances)		DateRef
16-35 [204] 2023-01-02
5.3-12 3.9–12.2 (4.7 LD nominal) 2023-01-14?
[205] 100-220 [206] 2023-01-16
19-43 [207] 2023-01-19
C/2022 E3 (ZTF) ≈1,000?? [208] 2023-02-01
110–250 [209] 2023-02-03
580-1300 [210] 2023-02-16
37-82 2023-02-18
[211] 6-14 1.62[212] 2023-02-18
370-820 [213] 2023-02-21
405 Thia (MBA) 109,000 2023-03-20 JPL
130-280 [214] 2023-04-06
364P/PANSTARRS ≈300? [215] 2023-04-07
4486 Mithra 1,850 2023-04-11
540–1200 [216] 2023-04-13
300 [217] 2023-04-26
1627 Ivar 9,120 2023-04-29 JPL
Planet Mercury[218] — 2023-05-04 JPL
453 Tea (MBA) 24,000 2023-05-05 JPL
14-31 0.19–24 (10 LD nominal) 2023-05-31?
[219] 4-8 Impact–600 (245 LD nominal) 2023-06-10? Nominal
600 [220] 2023-06-12
380-850 [221] 2023-06-15
200–450 2023-06-24
180-390 [222] 2023-07-05
210-470 2023-07-07
237P/LINEAR 2023-07-08 JPL
180-410 2023-07-12
350-780 2023-07-13
C/2021 T4 (Lemmon) 2023-07-20 JPL
260 2023-07-29
1585 2023-07-29
Planet Venus[223] — 2023-08-13 JPL
4769 Castalia 1,400 2023-08-22
8 Flora (MBA) 147,000 2023-09-02 JPL
77-170 [224] 2023-09-16
231 2023-09-20
103P/Hartley ≈2,000 [225] 2023-09-26
7-15 1.9–5.2 (3.1 LD nominal) 2023-10-12
245 2023-10-13
140-320 [226] 2023-10-17
4544 Xanthus 1,300 2023-10-21
18 Melpomene (MBA) 140,000 2023-10-30 JPL
150–330 2023-10-30
1,900 2023-11-02
1,720 2023-11-03
C/2023 H2 (Lemmon) [227] 2023-11-10
1,900 2023-11-14
400 2023-12-20
30-70 0.5–30 (3.5 LD nominal) 2023-12-23?

Notes

See also

Notes and References

  1. Sentry Risk Table: 2023 SM5
  2. Discovery date (first reported image), and if the object was confirmed and previously undiscovered, the discoverer
  3. 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 (0.0166 LD).
  4. Objects that approached closer to the Moon than Earth are marked with a check.
  5. Web site: JPL Small-Body Database Browser: (2023 AC1). Jet Propulsion Laboratory. 16 January 2023.
  6. Web site: 2023 AC1. Minor Planet Center. International Astronomical Union. 16 January 2023.
  7. The uncertainty region for on 2023-Jan-12 was ±1083 km.
  8. Web site: JPL Small-Body Database Browser: (2023 AV). Jet Propulsion Laboratory. 14 January 2023.
  9. Web site: 2023 AV. Minor Planet Center. International Astronomical Union. 14 January 2023.
  10. The uncertainty region for on 2023-Jan-12 was ±393 km.
  11. Web site: JPL Small-Body Database Browser: (2023 BY2). Jet Propulsion Laboratory. 26 January 2023.
  12. Web site: 2023 BY2. Minor Planet Center. International Astronomical Union. 25 January 2023.
  13. The uncertainty region for on 2023-Jan-21 was ±283 km.
  14. Web site: JPL Small-Body Database Browser: (2023 BX5). Jet Propulsion Laboratory. 29 January 2023.
  15. Web site: 2023 BX5. Minor Planet Center. International Astronomical Union. 29 January 2023.
  16. The uncertainty region for on 2023-Jan-25 was ±642 km.
  17. Web site: JPL Small-Body Database Browser: (2023 BL1). Jet Propulsion Laboratory. 24 January 2023.
  18. Web site: 2023 BL1. Minor Planet Center. International Astronomical Union. 24 January 2023.
  19. The uncertainty region for on 2023-Jan-25 was ±236 km.
  20. Web site: JPL Small-Body Database Browser: (2023 BL2). Jet Propulsion Laboratory. 25 January 2023.
  21. Web site: 2023 BL2. Minor Planet Center. International Astronomical Union. 25 January 2023.
  22. The uncertainty region for on 2023-Jan-26 was ±474 km.
  23. Web site: JPL Small-Body Database Browser: (2023 BU). Jet Propulsion Laboratory. 22 January 2023.
  24. Web site: 2023 BU. Minor Planet Center. International Astronomical Union. 22 January 2023.
  25. The uncertainty region for on 2023-Jan-27 was ±2 km.
  26. Web site: JPL Small-Body Database Browser: (2023 BZ3). Jet Propulsion Laboratory. 28 January 2023.
  27. Web site: 2023 BZ3. Minor Planet Center. International Astronomical Union. 28 January 2023.
  28. The uncertainty region for on 2023-Jan-27 was ±665 km.
  29. Web site: JPL Small-Body Database Browser: (2023 CK). Jet Propulsion Laboratory. 4 February 2023.
  30. Web site: 2023 CK. Minor Planet Center. International Astronomical Union. 4 February 2023.
  31. The uncertainty region for on 2023-Jan-30 was ±234 km.
  32. Web site: JPL Small-Body Database Browser: (2023 BJ7). Jet Propulsion Laboratory. 1 February 2023.
  33. Web site: 2023 BJ7. Minor Planet Center. International Astronomical Union. 1 February 2023.
  34. The uncertainty region for on 2023-Jan-30 was ±525 km.
  35. passed from the centerpoint of the Moon around 30 January 2023 13:34 UT. Since the Moon has a radius of about, it passed approximately from the surface of the Moon.
  36. Web site: JPL Small-Body Database Browser: (2023 CG4). Jet Propulsion Laboratory. 22 February 2023.
  37. Web site: 2023 CG4. Minor Planet Center. International Astronomical Union. 22 February 2023.
  38. The uncertainty region for on 2023-Feb-09 was ±5086 km. It was observed 2.53 days after closest approach and there were only 10 observations.
  39. Web site: JPL Small-Body Database Browser: (2023 CX1). Jet Propulsion Laboratory. 1 February 2023.
  40. Web site: 2023 CX1. Minor Planet Center. International Astronomical Union. 1 February 2023.
  41. Web site: JPL Small-Body Database Browser: (2023 DR). Jet Propulsion Laboratory. 26 February 2023.
  42. Web site: 2023 DR. Minor Planet Center. International Astronomical Union. 26 February 2023.
  43. The uncertainty region for on 2023-Feb-25 was ±65 km.
  44. Web site: JPL Small-Body Database Browser: (2023 EN). Jet Propulsion Laboratory. 12 March 2023.
  45. Web site: 2023 EN. Minor Planet Center. International Astronomical Union. 12 March 2023.
  46. The uncertainty region for on 2023-Mar-09 was ±260 km.
  47. Web site: JPL Small-Body Database Browser: (2023 ET2). Jet Propulsion Laboratory. 17 March 2023.
  48. Web site: 2023 ET2. Minor Planet Center. International Astronomical Union. 17 March 2023.
  49. The uncertainty region for on 2023-Mar-12 was ±3292 km.
  50. Web site: JPL Small-Body Database Browser: (2023 EY). Jet Propulsion Laboratory. 17 March 2023.
  51. Web site: 2023 EY. Minor Planet Center. International Astronomical Union. 17 March 2023.
  52. The uncertainty region for on 2023-Mar-17 was ±152 km.
  53. Web site: JPL Small-Body Database Browser: (2023 FO). Jet Propulsion Laboratory. 20 March 2023.
  54. Web site: 2023 FO. Minor Planet Center. International Astronomical Union. 20 March 2023.
  55. The uncertainty region for on 2023-Mar-19 was ±662 km.
  56. Web site: JPL Small-Body Database Browser: (2023 FN6). Jet Propulsion Laboratory. 30 March 2023.
  57. Web site: 2023 FN6. Minor Planet Center. International Astronomical Union. 30 March 2023.
  58. The uncertainty region for on 2023-Mar-25 was ±426 km.
  59. Web site: JPL Small-Body Database Browser: (2023 DZ2). Jet Propulsion Laboratory. 17 March 2023.
  60. Web site: 2023 DZ2. Minor Planet Center. International Astronomical Union. 17 March 2023.
  61. The uncertainty region for on 2023-Mar-25 (as known at the time of closest approach) was ±27 km.
  62. Web site: JPL Small-Body Database Browser: (2023 FH7). Jet Propulsion Laboratory. 30 March 2023.
  63. Web site: 2023 FH7. Minor Planet Center. International Astronomical Union. 30 March 2023.
  64. The uncertainty region for on 2023-Mar-30 was ±358 km.
  65. Web site: JPL Small-Body Database Browser: (2023 GQ). Jet Propulsion Laboratory. 13 April 2023.
  66. Web site: 2023 GQ. Minor Planet Center. International Astronomical Union. 13 April 2023.
  67. The uncertainty region for on 2023-Apr-11 was ±142 km.
  68. Web site: JPL Small-Body Database Browser: (2023 GP3). Jet Propulsion Laboratory. 8 May 2023.
  69. Web site: 2023 GP3. Minor Planet Center. International Astronomical Union. 8 May 2023.
  70. The uncertainty region for on 2023-Apr-11 was ±908 km.
  71. Web site: JPL Small-Body Database Browser: (2023 HE). Jet Propulsion Laboratory. 17 April 2023.
  72. Web site: 2023 HE. Minor Planet Center. International Astronomical Union. 17 April 2023.
  73. The uncertainty region for on 2023-Apr-14 was ±719 km.
  74. Web site: JPL Small-Body Database Browser: (2023 HZ). Jet Propulsion Laboratory. 18 April 2023.
  75. Web site: 2023 HZ. Minor Planet Center. International Astronomical Union. 18 April 2023.
  76. The uncertainty region for on 2023-Apr-15 was ±1156 km.
  77. Web site: JPL Small-Body Database Browser: (2023 HB). Jet Propulsion Laboratory. 17 April 2023.
  78. Web site: 2023 HB. Minor Planet Center. International Astronomical Union. 17 April 2023.
  79. The uncertainty region for on 2023-Apr-17 was ±754 km.
  80. Web site: JPL Small-Body Database Browser: (2023 HH). Jet Propulsion Laboratory. 17 April 2023.
  81. Web site: 2023 HH. Minor Planet Center. International Astronomical Union. 17 April 2023.
  82. The uncertainty region for on 2023-Apr-18 was ±153 km.
  83. Web site: JPL Small-Body Database Browser: (2023 HT). Jet Propulsion Laboratory. 18 April 2023.
  84. Web site: 2023 HT. Minor Planet Center. International Astronomical Union. 18 April 2023.
  85. The uncertainty region for on 2023-Apr-18 was ±150 km.
  86. Web site: JPL Small-Body Database Browser: (2023 HK). Jet Propulsion Laboratory. 18 April 2023.
  87. Web site: 2023 HK. Minor Planet Center. International Astronomical Union. 18 April 2023.
  88. The uncertainty region for on 2023-Apr-20 was ±655 km.
  89. Web site: JPL Small-Body Database Browser: (2023 HW3). Jet Propulsion Laboratory. 25 April 2023.
  90. Web site: 2023 HW3. Minor Planet Center. International Astronomical Union. 25 April 2023.
  91. The uncertainty region for on 2023-Apr-23 was ±261 km.
  92. Web site: JPL Small-Body Database Browser: (2023 HD7). Jet Propulsion Laboratory. 1 May 2023.
  93. Web site: 2023 HD7. Minor Planet Center. International Astronomical Union. 1 May 2023.
  94. The uncertainty region for on 2023-Apr-23 was ±269 km.
  95. Web site: JPL Small-Body Database Browser: (2023 JO). Jet Propulsion Laboratory. 12 May 2023.
  96. Web site: 2023 JO. Minor Planet Center. International Astronomical Union. 12 May 2023.
  97. The uncertainty region for on 2023-May-09 was ±3596 km.
  98. Web site: JPL Small-Body Database Browser: (2023 JF). Jet Propulsion Laboratory. 12 May 2023.
  99. Web site: 2023 JF. Minor Planet Center. International Astronomical Union. 12 May 2023.
  100. The uncertainty region for on 2023-May-09 was ±177 km.
  101. Web site: JPL Small-Body Database Browser: (2023 JA3). Jet Propulsion Laboratory. 19 May 2023.
  102. Web site: 2023 JA3. Minor Planet Center. International Astronomical Union. 19 May 2023.
  103. The uncertainty region for on 2023-May-12 was ±523 km.
  104. Web site: JPL Small-Body Database Browser: (2023 KT). Jet Propulsion Laboratory. 28 May 2023.
  105. Web site: 2023 KT. Minor Planet Center. International Astronomical Union. 28 May 2023.
  106. The uncertainty region for on 2023-May-17 was ±279 km.
  107. Web site: JPL Small-Body Database Browser: (2023 KS). Jet Propulsion Laboratory. 28 May 2023.
  108. Web site: 2023 KS. Minor Planet Center. International Astronomical Union. 28 May 2023.
  109. The uncertainty region for on 2023-May-22 was ±334 km.
  110. Web site: JPL Small-Body Database Browser: (2023 KK4). Jet Propulsion Laboratory. 13 June 2023.
  111. Web site: 2023 KK4. Minor Planet Center. International Astronomical Union. 13 June 2023.
  112. The uncertainty region for on 2023-May-27 was ±1419 km.
  113. Web site: JPL Small-Body Database Browser: (2023 KU4). Jet Propulsion Laboratory. 13 June 2023.
  114. Web site: 2023 KU4. Minor Planet Center. International Astronomical Union. 13 June 2023.
  115. The uncertainty region for on 2023-May-27 was ±627 km.
  116. Web site: JPL Small-Body Database Browser: (2023 LC). Jet Propulsion Laboratory. 13 June 2023.
  117. Web site: 2023 LC. Minor Planet Center. International Astronomical Union. 13 June 2023.
  118. The uncertainty region for on 2023-Jun-07 was ±89 km.
  119. Web site: JPL Small-Body Database Browser: (2023 LS). Jet Propulsion Laboratory. 13 June 2023.
  120. Web site: 2023 LS. Minor Planet Center. International Astronomical Union. 13 June 2023.
  121. The uncertainty region for on 2023-Jun-09 was ±49 km.
  122. Web site: JPL Small-Body Database Browser: (2023 LP1). Jet Propulsion Laboratory. 15 June 2023.
  123. Web site: 2023 LP1. Minor Planet Center. International Astronomical Union. 15 June 2023.
  124. The uncertainty region for on 2023-Jun-13 was ±496 km.
  125. Web site: JPL Small-Body Database Browser: (2023 LZ). Jet Propulsion Laboratory. 13 June 2023.
  126. Web site: 2023 LZ. Minor Planet Center. International Astronomical Union. 13 June 2023.
  127. The uncertainty region for on 2023-Jun-14 was ±612 km.
  128. Web site: JPL Small-Body Database Browser: (2023 LM1). Jet Propulsion Laboratory. 15 June 2023.
  129. Web site: 2023 LM1. Minor Planet Center. International Astronomical Union. 15 June 2023.
  130. The uncertainty region for on 2023-Jun-15 was ±99 km.
  131. Web site: JPL Small-Body Database Browser: (2023 LE2). Jet Propulsion Laboratory. 24 June 2023.
  132. Web site: 2023 LE2. Minor Planet Center. International Astronomical Union. 24 June 2023.
  133. The uncertainty region for on 2023-Jun-17 was ±80 km.
  134. Web site: JPL Small-Body Database Browser: (2023 MB3). Jet Propulsion Laboratory. 24 June 2023.
  135. Web site: 2023 MB3. Minor Planet Center. International Astronomical Union. 24 June 2023.
  136. The uncertainty region for on 2023-Jun-20 was ±188 km.
  137. Web site: JPL Small-Body Database Browser: (2023 MD4). Jet Propulsion Laboratory. 25 June 2023.
  138. came to perihelion on 20 May 2023 and approached from the direction of the Sun. It made Earth closest approach at 20 June 2023 18:10 UT and was discovered 85.4h later at 24 June 2023 07:36 UT.
  139. Web site: 2023 MD4. Minor Planet Center. International Astronomical Union. 25 June 2023.
  140. The uncertainty region for on 2023-Jun-20 was ±1570 km.
  141. Web site: JPL Small-Body Database Browser: (2023 MW2). Jet Propulsion Laboratory. 24 June 2023.
  142. Web site: 2023 MW2. Minor Planet Center. International Astronomical Union. 24 June 2023.
  143. The uncertainty region for on 2023-Jun-23 was ±62 km.
  144. Web site: JPL Small-Body Database Browser: (2023 ML3). Jet Propulsion Laboratory. 24 June 2023.
  145. Web site: 2023 ML3. Minor Planet Center. International Astronomical Union. 24 June 2023.
  146. The uncertainty region for on 2023-Jun-24 was ±315 km.
  147. Web site: JPL Small-Body Database Browser: (2023 MU2). Jet Propulsion Laboratory. 24 June 2023.
  148. Web site: 2023 MU2. Minor Planet Center. International Astronomical Union. 24 June 2023.
  149. The uncertainty region for on 2023-Jun-25 was ±102 km.
  150. Web site: JPL Small-Body Database Browser: (2023 NO). Jet Propulsion Laboratory. 12 July 2023.
  151. Web site: 2023 NO. Minor Planet Center. International Astronomical Union. 12 July 2023.
  152. The uncertainty region for on 2023-Jul-05 was ±1915 km.
  153. Web site: JPL Small-Body Database Browser: (2023 NT1). Jet Propulsion Laboratory. 17 July 2023.
  154. Web site: 2023 NT1. Minor Planet Center. International Astronomical Union. 17 July 2023.
  155. The uncertainty region for on 2023-Jul-13 was ±135 km.
  156. Web site: JPL Small-Body Database Browser: (2023 QY). Jet Propulsion Laboratory. 24 August 2023.
  157. Web site: 2023 QY. Minor Planet Center. International Astronomical Union. 24 August 2023.
  158. The uncertainty region for on 2023-Aug-18 was ±654 km.
  159. Web site: JPL Small-Body Database Browser: (2023 QS1). Jet Propulsion Laboratory. 24 August 2023.
  160. Web site: 2023 QS1. Minor Planet Center. International Astronomical Union. 24 August 2023.
  161. The uncertainty region for on 2023-Aug-19 was ±115 km.
  162. Web site: JPL Small-Body Database Browser: (2023 QR). Jet Propulsion Laboratory. 24 August 2023.
  163. Web site: 2023 QR. Minor Planet Center. International Astronomical Union. 24 August 2023.
  164. The uncertainty region for on 2023-Aug-20 was ±241 km.
  165. Web site: JPL Small-Body Database Browser: (2023 RM16). Jet Propulsion Laboratory. 27 September 2023.
  166. Web site: 2023 RM16. Minor Planet Center. International Astronomical Union. 27 September 2023.
  167. The uncertainty region for on 2023-Sep-05 was ±832 km.
  168. Web site: JPL Small-Body Database Browser: (2023 RS). Jet Propulsion Laboratory. 27 September 2023.
  169. Web site: 2023 RS. Minor Planet Center. International Astronomical Union. 27 September 2023.
  170. The uncertainty region for on 2023-Sep-07 was ±13 km.
  171. Web site: JPL Small-Body Database Browser: (2023 RG22). Jet Propulsion Laboratory. 27 September 2023.
  172. Web site: 2023 RG22. Minor Planet Center. International Astronomical Union. 27 September 2023.
  173. The uncertainty region for on 2023-Sep-07 was ±7613 km.
  174. Web site: JPL Small-Body Database Browser: (2023 RY2). Jet Propulsion Laboratory. 27 September 2023.
  175. Web site: 2023 RY2. Minor Planet Center. International Astronomical Union. 27 September 2023.
  176. The uncertainty region for on 2023-Sep-08 was ±431 km.
  177. Web site: JPL Small-Body Database Browser: (2023 RK5). Jet Propulsion Laboratory. 27 September 2023.
  178. Web site: 2023 RK5. Minor Planet Center. International Astronomical Union. 27 September 2023.
  179. The uncertainty region for on 2023-Sep-09 was ±449 km.
  180. Web site: JPL Small-Body Database Browser: (2023 RR5). Jet Propulsion Laboratory. 27 September 2023.
  181. Web site: 2023 RR5. Minor Planet Center. International Astronomical Union. 27 September 2023.
  182. The uncertainty region for on 2023-Sep-13 was ±121 km.
  183. Web site: JPL Small-Body Database Browser: (2023 SR5). Jet Propulsion Laboratory. 27 September 2023.
  184. Web site: 2023 SR5. Minor Planet Center. International Astronomical Union. 27 September 2023.
  185. The uncertainty region for on 2023-Sep-16 was ±1233 km.
  186. Web site: JPL Small-Body Database Browser: (2023 SC2). Jet Propulsion Laboratory. 27 September 2023.
  187. Web site: 2023 SC2. Minor Planet Center. International Astronomical Union. 27 September 2023.
  188. The uncertainty region for on 2023-Sep-18 was ±411 km.
  189. Web site: JPL Small-Body Database Browser: (2023 SN1). Jet Propulsion Laboratory. 27 September 2023.
  190. Web site: 2023 SN1. Minor Planet Center. International Astronomical Union. 27 September 2023.
  191. The uncertainty region for on 2023-Sep-20 was ±390 km.
  192. Web site: JPL Small-Body Database Browser: (2023 SL5). Jet Propulsion Laboratory. 28 September 2023.
  193. Web site: 2023 SL5. Minor Planet Center. International Astronomical Union. 28 September 2023.
  194. The uncertainty region for on 2023-Sep-20 was ±206 km.
  195. Web site: JPL Small-Body Database Browser: (2023 SM5). Jet Propulsion Laboratory. 28 September 2023.
  196. Web site: 2023 SM5. Minor Planet Center. International Astronomical Union. 28 September 2023.
  197. The uncertainty region for on 2023-Sep-23 is 1327±km.
  198. Web site: JPL Small-Body Database Browser: (2023 SP3). Jet Propulsion Laboratory. 28 September 2023.
  199. Web site: 2023 SP3. Minor Planet Center. International Astronomical Union. 28 September 2023.
  200. The uncertainty region for on 2023-Sep-24 was ±247 km.
  201. Web site: JPL Small-Body Database Browser: (2023 SH7). Jet Propulsion Laboratory. 29 September 2023.
  202. Web site: 2023 SH7. Minor Planet Center. International Astronomical Union. 28 September 2023.
  203. The uncertainty region for on 2023-Sep-25 was ±35 km.
  204. The uncertainty region for on 2023-Jan-02 was ±6500 km.
  205. was recovered by WISE in October 2022 and followed up by several observatories in January 2023.
  206. The uncertainty region for on 2023-Jan-16 was ±103 km.
  207. https://archive.today/20221110120051/https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html%23/?sstr=2020%20BP&view=OPC was 0.43–40 (5 LD nominal)
  208. The uncertainty region for C/2022 E3 (ZTF) on 2023-Feb-01 was ±500 km.
  209. brightened to about apmag 14.2 on 2023-Feb-02.
  210. The uncertainty region for on 2023-Feb-16 was ±10 km. It brightened to about apmag 13.2 on 2023-Feb-14.
  211. At the start of the year had the closest known nominal approach to Earth in 2023 at 1.4 LD.
  212. https://archive.today/20221110120409/https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html%23/?sstr=2020%20DG4&view=OPC was 1.2–11 (1.4 LD nominal)
  213. The uncertainty region for on 2023-Feb-21 was ±57 km. It brightened to about apmag 14.5 on 2023-Feb-25.
  214. The uncertainty region for on 2023-Apr-06 is ±3200 km. It brightened to apmag 14.8 on 2023-Apr-04.
  215. The uncertainty region for 364P/PANSTARRS on 2023-Apr-07 is ±47 km.
  216. The uncertainty region for on 2023-Apr-13 was ±305 km. It brightened to apmag 14.2 on 2023-Apr-16.
  217. The uncertainty region for on 2023-Apr-26 is ±36 km. It brightened to apmag 15.3 on 2023-Apr-24.
  218. Mercury also will pass 260.9 LD from Earth on January 8, 244.4 LD from Earth on September 3, and 263.2 LD from Earth on December 23. Mercury makes a closest approach to Earth about every 116 days.
  219. The asteroid with the greatest chance of impacting Earth in 2023 is (4-meters in diameter) with less than a 1-day observation arc. It has a 1:53,000 chance of impact on 10 June 2023, but is expected to be around 0.63abbr=unitNaNabbr=unit from Earth on that date at a basically undetectable apparent magnitude of 31. Such an impact would be similar to .
  220. The uncertainty region for 1994 XD on 2023-Jun-12 is ±17 km. It is expected to brighten to apmag 13.5 on 2023-Jun-10 and best seen from the Northern hemisphere.
  221. The uncertainty region for on 2023-Jun-15 is ±51 km. It is expected to brighten to apmag 13.8 on 2023-Jun-14 and best seen from the Southern hemisphere.
  222. The uncertainty region for on 2023-Jul-05 is ±700 km. It is expected to brighten to apmag 13.5 on 2023-Jul-05 and best seen from the Southern hemisphere.
  223. For comparison as the closest Venus approach is 2023-Aug-13 at 0.2887abbr=onNaNabbr=on.
  224. https://archive.today/20221110120706/https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html%23/?sstr=2016%20LY48&view=OPC was 4.3–8.7 (4.3 LD nominal)
  225. The uncertainty region for 103P/Hartley on 2023-Sep-26 is ±310 km.
  226. The uncertainty region for on 2023-Oct-17 is ±471 km.
  227. The uncertainty region for C/2023 H2 (Lemmon) on 2023-Nov-10 is ±57000 km. It might brighten to magnitude 10, but will stay within 75 degrees of the Sun when brightest.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "List of asteroid close approaches to Earth in 2023".

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