List of asteroid close approaches to Earth in 2022

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Time of discovery of asteroids which passed within 1 lunar distance from Earth in 2022
After closest approach: 22 (56.4%)< 24 hours before: 7 (17.9%)up to 7 days before: 10 (25.6%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg
  •   After closest approach: 22 (56.4%)
  •   < 24 hours before: 7 (17.9%)
  •   up to 7 days before: 10 (25.6%)
  •   > one week before: 0 (0.0%)
  •   > 7 weeks before: 0 (0.0%)
  •   > one year before: 0 (0.0%)
Counts of confirmed asteroids which were discovered on their 2022 close approach, by discoverer
G96 Mt. Lemmon Survey: 17 (43.6%)703 Catalina Sky Survey: 8 (20.5%)F52 Pan-STARRS 2, Haleakala: 3 (7.7%)K88 GINOP-KHK, Piszkesteto: 3 (7.7%)T05 ATLAS-HKO, Haleakala: 2 (5.1%)V00 Kitt Peak-Bok: 2 (5.1%)T08 ATLAS-MLO, Mauna Loa: 2 (5.1%)W94 MAP, San Pedro de Atacama: 1 (2.6%)381 Tokyo-Kiso: 1 (2.6%)Circle frame.svg
  •   G96 Mt. Lemmon Survey: 17 (43.6%)
  •   703 Catalina Sky Survey: 8 (20.5%)
  •   F52 Pan-STARRS 2, Haleakala: 3 (7.7%)
  •   K88 GINOP-KHK, Piszkesteto: 3 (7.7%)
  •   T05 ATLAS-HKO, Haleakala: 2 (5.1%)
  •   V00 Kitt Peak-Bok: 2 (5.1%)
  •   T08 ATLAS-MLO, Mauna Loa: 2 (5.1%)
  •   W94 MAP, San Pedro de Atacama: 1 (2.6%)
  •   381 Tokyo-Kiso: 1 (2.6%)
Prediction accuracy for asteroids of magnitude 27 or larger nominally predicted to pass within 1 lunar distance of Earth in 2022[note 1]
Unpredicted: 3 (60.0%)Predicted but not observed: 0 (0.0%)Observed but details incorrect: 0 (0.0%)Distance correct but not date: 0 (0.0%)Date correct but not distance: 0 (0.0%)Successfully predicted: 0 (0.0%)Not due till later in the year: 2 (40.0%)Circle frame.svg
  •   Unpredicted: 3 (60.0%)
  •   Predicted but not observed: 0 (0.0%)
  •   Observed but details incorrect: 0 (0.0%)
  •   Distance correct but not date: 0 (0.0%)
  •   Date correct but not distance: 0 (0.0%)
  •   Successfully predicted: 0 (0.0%)
  •   Not due till later in the year: 2 (40.0%)

Below is the list of asteroids that have come close to Earth in 2022.

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 (0.0025696 AU (384,410 km; 238,860 mi)) from Earth in 2022.[1]

Asteroid 2022 EB5 is noteworthy in that it was detected before impact. This is only the 5th successfully predicted impact in history. Every year, dozens of asteroids impact earth with enough force to be detected by infrasound sensors designed to detect detonation of nuclear devices, but the vast majority of impacts are unpredicted and occur without warning. Fortunately most occur over uninhabited areas.[2]

For reference, the radius of Earth is about 0.0000426 AU (6,370 km; 3,960 mi) or 0.0166 lunar distances. Geosynchronous satellites have an orbit with semi-major axis length of 0.000282 AU (42,200 km; 26,200 mi) or 0.110 lunar distances.

Asteroid 2021 YK (10–20 meters in diameter) was observed on 27 December 2021 04:40 UT (when it was about 3.8 million km from Earth) and passed 0.49 LD (190 thousand km) from Earth on 2 January 2022. 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.

  Rows highlighted red indicate objects which were not discovered until after closest approach

  Rows highlighted yellow indicate objects discovered less than 24 hours before closest approach

  Rows highlighted green indicate objects discovered more than one week before closest approach

  Rows highlighted turquoise indicate objects discovered more than 7 weeks before closest approach

  Rows highlighted blue indicate objects discovered more than one year before closest approach (i.e.
objects successfully cataloged on a previous orbit, rather than being detected during final approach)

Date of
closest
approach 		Discovery[note 2] Object Nominal geocentric distance[note 3] Approx.
size (m) 		(H)
(abs. mag) 		Closer
approach
to Moon
[note 4]
(AU) (Lunar
distance)
[note 5]
2022-01-02[3] 2021-12-27
G96 Mt. Lemmon Survey[4]		 2021 YK 0.00127 AU (190,000 km; 118,000 mi) 0.49 8.7–20 27.4 ✓
2022-01-02[5] 2022-01-05
G96 Mt. Lemmon Survey[6]		 2022 AP1 0.00121 AU (181,000 km; 112,000 mi) 0.47 6.0–13 28.2 —
2022-01-03[7] 2022-01-05
G96 Mt. Lemmon Survey[8]		 2022 AU 0.00213 AU (319,000 km; 198,000 mi) 0.83 4.1–9.1 29.1 —
2022-01-03[9] 2022-01-05
G96 Mt. Lemmon Survey[10]		 2022 AO1 0.00232 AU (347,000 km; 216,000 mi) 0.90 3.6–8.0 29.4 —
2022-01-05[11] 2022-01-06
G96 Mt. Lemmon Survey[12]		 2022 AV13 0.00073 AU (109,000 km; 68,000 mi) 0.28 1.2–2.6 31.8 ✓
2022-01-06[13] 2022-01-07
F52 Pan-STARRS 2, Haleakala[14]		 2022 AY4 0.00202 AU (302,000 km; 188,000 mi) 0.79 3.1–6.9 29.7 ✓
2022-01-10[15] 2022-01-11
703 Catalina Sky Survey[16]		 2022 AY5 0.00068 AU (102,000 km; 63,000 mi) 0.27 3.9–8.6 29.2 —
2022-01-10[17] 2022-01-10
T08 ATLAS-MLO, Mauna Loa[18]		 2022 AC7 0.00103 AU (154,000 km; 96,000 mi) 0.40 2.5–5.5 30.2 —
2022-01-11[19] 2022-01-09
G96 Mt. Lemmon Survey[20]		 2022 AC4 0.00062 AU (93,000 km; 58,000 mi) 0.24 4.2–9.5 29.0 —
2022-01-23[21] 2022-01-23
K88 GINOP-KHK, Piszkesteto[22]		 2022 BN 0.00062 AU (93,000 km; 58,000 mi) 0.24 5.6–12 28.4 —
2022-01-24[23] 2022-01-25
703 Catalina Sky Survey[24]		 2022 BT 0.00068 AU (102,000 km; 63,000 mi) 0.26 3.1–6.9 29.7 —
2022-01-25[25] 2022-01-26
G96 Mt. Lemmon Survey[26]		 2022 BA7 0.00066 AU (99,000 km; 61,000 mi) 0.26 1.8–4.0 30.8 —
2022-01-27[27] 2022-01-26
G96 Mt. Lemmon Survey[28]		 2022 BD1 0.00124 AU (186,000 km; 115,000 mi) 0.48 3.8–8.4 29.2 —
2022-01-27[29] 2022-01-28
703 Catalina Sky Survey[30]		 2022 BH3 0.00211 AU (316,000 km; 196,000 mi) 0.82 15–34 26.2 ✓
2022-01-28[31] 2022-01-27
G96 Mt. Lemmon Survey[32]		 2022 BN2 0.00188 AU (281,000 km; 175,000 mi) 0.73 3.0–6.8 29.7 —
2022-02-01[33] 2022-02-02
T05 ATLAS-HKO, Haleakala[34]		 2022 CE 0.00140 AU (209,000 km; 130,000 mi) 0.55 6.8–15 28.0 —
2022-02-02[35] 2022-02-02
T05 ATLAS-HKO, Haleakala[36]		 2022 CG 0.00231 AU (346,000 km; 215,000 mi) 0.90 15–34 26.2 —
2022-02-02[37] 2022-02-05
G96 Mt. Lemmon Survey[38]		 2022 CY1 0.00183 AU (274,000 km; 170,000 mi) 0.71 6.4–14 28.1 ✓
2022-02-05[39] 2022-02-08
703 Catalina Sky Survey[40]		 2022 CU4 0.00220 AU (329,000 km; 205,000 mi) 0.86 3.7–8.3 29.3 —
2022-02-05[41] 2022-02-06
G96 Mt. Lemmon Survey[42]		 2022 CB3 0.00056 AU (84,000 km; 52,000 mi) 0.22 2.1–4.7 30.5 —
2022-02-08[43] 2022-02-06
V00 Kitt Peak-Bok[44]		 2022 CD3 0.00192 AU (287,000 km; 178,000 mi) 0.75 5.1–11 28.6 —
2022-02-10[45] 2022-02-09
G96 Mt. Lemmon Survey[46]		 2022 CJ5 0.00021 AU (31,000 km; 20,000 mi) 0.08 2.3–5.2 30.3 —
2022-02-12[47] 2022-02-13
703 Catalina Sky Survey[48]		 2022 CG7 0.00034 AU (51,000 km; 32,000 mi) 0.13 5.1–11 28.6 —
2022-02-13[49] 2022-02-14
703 Catalina Sky Survey[50]		 2022 CL7 0.00056 AU (84,000 km; 52,000 mi) 0.22 3.2–7.1 29.6 —
2022-02-14[51] 2022-02-13
G96 Mt. Lemmon Survey[52]		 2022 CF7 0.00213 AU (319,000 km; 198,000 mi) 0.83 6.5–15 28.0 —
2022-02-15[53] 2022-02-10
W94 MAP, San Pedro de Atacama[54]		 2022 CO6 0.00150 AU (224,000 km; 139,000 mi) 0.58 20–46 25.6 ✓
2022-02-24[55] 2022-02-26
G96 Mt. Lemmon Survey[56]		 2022 DY1 0.00149 AU (223,000 km; 139,000 mi) 0.58 6.8–15 28.0 —
2022-02-27[57] 2022-02-27
T08 ATLAS-MLO, Mauna Loa[58]		 2022 DO3 0.00088 AU (132,000 km; 82,000 mi) 0.34 11–24 26.9 —
2022-03-02[59] 2022-02-28
F52 Pan-STARRS 2, Haleakala[60]		 2022 DM4 0.00174 AU (260,000 km; 162,000 mi) 0.68 3.8–8.4 29.2 ✓
2022-03-02[61] 2022-03-02
381 Tokyo-Kiso[62]		 2022 ET 0.00182 AU (272,000 km; 169,000 mi) 0.71 2.4–5.5 30.2 —
2022-03-03[63] 2022-03-02
703 Catalina Sky Survey[64]		 2022 EQ 0.00097 AU (145,000 km; 90,000 mi) 0.38 3.1–6.8 29.7 —
2022-03-04[65] 2022-03-02
G96 Mt. Lemmon Survey[66]		 2022 EF1 0.00188 AU (281,000 km; 175,000 mi) 0.73 4.3–9.7 28.9 ✓
2022-03-08[67] 2022-03-10
G96 Mt. Lemmon Survey[68]		 2022 EE5 0.00068 AU (102,000 km; 63,000 mi) 0.27 2.6–5.7 30.1 —
2022-03-09[69] 2022-03-08
F52 Pan-STARRS 2, Haleakala[70]		 2022 EV3 0.00053 AU (79,000 km; 49,000 mi) 0.21 2.9–6.4 29.8 —
2022-03-11[71][72] 2022-03-11
K88 GINOP-KHK, Piszkesteto[73]		 2022 EB5 impact impact 1.3–3.0 31.4 —
2022-03-13[74] 2022-03-07
V00 Kitt Peak-Bok[75]		 2022 ES3 0.00222 AU (332,000 km; 206,000 mi) 0.87 9.7–22 27.2 ✓
2022-03-15[76] 2022-03-16
703 Catalina Sky Survey[77]		 2022 FA 0.00126 AU (188,000 km; 117,000 mi) 0.49 10–23 27.1 —
2022-03-25[78] 2022-03-24
K88 GINOP-KHK, Piszkesteto[79]		 2022 FD1 0.000099 AU (14,800 km; 9,200 mi) 0.04 1.7–3.7 31.0 —
2022-03-26[80] 2022-03-24
G96 Mt. Lemmon Survey[81]		 2022 FA1 0.00176 AU (263,000 km; 164,000 mi) 0.68 3.8–8.6 29.2 —

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. It shows the effectiveness of asteroid warning systems at detecting close approaches. 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.[1]

Absolute magnitude 30 and greater

Silhouette of man standing and facing forward

(size of a person for comparison)

After closest approach: 5 (55.6%)< 24 hours before: 3 (33.3%)up to 7 days before: 1 (11.1%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg

Absolute magnitude 29-30

After closest approach: 8 (57.1%)< 24 hours before: 2 (14.3%)up to 7 days before: 4 (28.6%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg

Absolute magnitude 28-29

After closest approach: 5 (62.5%)< 24 hours before: 1 (12.5%)up to 7 days before: 2 (25.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg

Absolute magnitude 27-28

After closest approach: 2 (50.0%)< 24 hours before: 0 (0.0%)up to 7 days before: 2 (50.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg

Absolute magnitude 26-27 (probable size of the Chelyabinsk meteor)

After closest approach: 2 (66.7%)< 24 hours before: 1 (33.3%)up to 7 days before: 0 (0.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg

Absolute magnitude 25-26

After closest approach: 0 (0.0%)< 24 hours before: 0 (0.0%)up to 7 days before: 1 (100.0%)> one week before: 0 (0.0%)> 7 weeks before: 0 (0.0%)> one year before: 0 (0.0%)Circle frame.svg
  •   After closest approach: 0 (0.0%)
  •   < 24 hours before: 0 (0.0%)
  •   up to 7 days before: 1 (100.0%)
  •   > one week before: 0 (0.0%)
  •   > 7 weeks before: 0 (0.0%)
  •   > one year before: 0 (0.0%)


Predicted close approaches[]

Below is the list of predicted close approaches of near-Earth asteroids larger than magnitude 27, that were predicted at the start of the year to occur in 2022.[note 1] This relates to the effectiveness of asteroid cataloging systems at predicting close approaches. A predicted close approach distance of within ±50% is considered to be a successful prediction.[note 6]

For asteroids which were observed but not predicted, see the main list above.

  Rows highlighted orange indicate objects which were predicted theoretically but were not observed in practice

  Rows highlighted yellow indicate objects which were predicted and observed but the predicted close approach date and distance were incorrect

  Rows highlighted green indicate objects which were observed with the predicted close approach distance (within ±50%) but wrong date

  Rows highlighted turquoise indicate objects which were observed with the predicted close approach date but wrong distance (out by over 50%)

  Rows highlighted blue indicate objects which were observed as predicted with the correct close approach date and distance

  Rows in grey indicate predicted objects that are not yet due

Object Predicted Date of closest approach Actual Date of closest approach Predicted closest approach distance (Lunar
distance) 		Actual closest approach distance (Lunar
distance)[note 6] 		(H)
(abs. mag) 		Approx. Size (m)
2020 TO2 2022-10-15 ±4 days [82] Not due yet 1.34–20.6 (1.39 nominal) Not observed yet 26.4 14–31
2015 RN35 2022-12-15 [83] Not due yet 1.78–1.79 (1.78 nominal) Not observed yet 23.1 64–140

Notes[]

  1. ^ a b Absolute magnitude 27 is the estimated magnitude of the Chelyabinsk meteor, which caused widespread damage and injury, but no deaths. Objects smaller than this are excluded.
  2. ^ Discovery date, 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 (0.166 LD).
  4. ^ Objects that approached closer to the Moon than Earth are marked with a check.
  5. ^ For unconfirmed asteroids, the provided distance range is for the 25th and 75th percentile. As a result, there is a 50% chance the asteroid's approach distance was outside of this range. Additionally, the uncertainty is usually asymmetric, so an asteroid at a nominal distance of 0.4-0.7 LD may have been more likely to only approach to 1.0 LD than to 0.3 LD.
  6. ^ a b Asteroids with a predicted close approach distance of up to 2 LD are included in the table, since a 2 LD prediction that is out by -50% will result in a 1 LD close approach.

Additional examples[]

Below is an example list of near-Earth asteroids that passed or nominally will pass more than 1 lunar distance (384,400 km or 0.00256 AU) from Earth in 2022. During 2021 over 1000 asteroids passed within 10 LD (3.8 million km) of Earth.

  Rows highlighted yellow indicate short arc objects that have not been observed for years and therefore the uncertainty in the approach distance and date are large

  Rows highlighted red indicate objects which are risk–listed with a virtual impactor near this date

Object Size
(meters) 		Nearest approach
(lunar
distances) 		Date Ref
2020 AP1 3–7 0.003–11 2022-01-07? JPL · CAD
Planet Venus[note2 1] — 103.4 2022-01-08 JPL
(7482) 1994 PC1 750–1300 5.15 2022-01-18 JPL · CAD
2015 DR215 220–490 17.43 2022-03-11 JPL · CAD
2022 BX1 130-280 20 2022-03-13 JPL · CAD
2012 TV 24–54 0.7–50 2022-04-05? JPL · CAD
(418135) 2008 AG33 350-780 8.43 2022-04-28 JPL · CAD
2009 JF1 8-17 Impact–130 2022-05-15? Nominal
(7335) 1989 JA 840–1900 10.47 2022-05-27 JPL · CAD
161989 Cacus 990–2200 22.39 2022-09-01 JPL · CAD
65803 Didymos 700–900 27.72 2022-10-04 JPL · CAD
2013 YA14 50-110 2.69 2022-12-25 JPL · CAD
2010 XC15 140-300 2.01 2022-12-27 JPL · CAD

Notes[]

  1. ^ For comparison as closest Venus approach was 2022-Jan-08 at 103 LD. (Earth came to perihelion on 2022-Jan-04.)

See also[]

References[]

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