CLOSE APPROACHES

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Last update: 2024-12-21 00:12 UTC

Every month dozens of NEAs come within 0.05 au of Earth. The following table presents the list of these forthcoming and recent close approaches, with details concerning the encounter circumstances.

Among the quantities in the table is the maximum brightness reached by the object at the close approach, useful to estimate its observability during the encounter. For a detailed description see the "Definitions and Assumptions" page. Entries are by default sorted by date, but the sorting can be changed by clicking on the table headers.

The last column provides an assessment on how often one can expect an object of a given size to pass at a given distance and velocity from the Earth. A colour-coded evaluation is provided indicating whether a given close approach can be considered as very frequent (Bullet Cyan Circle), frequent (Bullet Green Circle), infrequent (Bullet Yellow Circle), rare (Bullet Orange Circle), or very rare (Bullet Red Circle). For example, the close approach to Earth of asteroid (99942) Apophis in 2029 will be a very rare event (this case will only appear in the list of upcoming close approaches since April 2028). The formulation associated to the computation of this close approach index can be found here.

1 au = 149597870.7 km


1 LD = 384399 km


Distances are computed

from the center of the Earth

Go to recent close approaches table

Upcoming close approaches to Earth

Object designationClose approach date in UTCMiss distance in kmMiss distance in auMiss distance in LDDiameter in mH in magMaximum brightness in magRelative velocity in km/sCAICAI Index
2024-12-21 09:0737809450.0252749.83615 - 30*26.320.89.72.986
2024-12-21 09:3210561940.0070602.74813 - 28*26.617.813.22.246
2024-12-22 23:596158050.0041161.6029 - 20*27.317.26.41.991
2024-12-24 02:5672190120.04825618.78029 - 70*24.819.56.62.524
2024-12-25 21:1938684370.02585910.06430 - 70*24.720.29.22.098
2024-12-26 13:3136597140.0244649.52122 - 50*25.420.210.42.582
2024-12-27 21:5465329330.04367016.9955 - 11*28.625.99.85.079
2024-12-31 03:4525836210.0172706.72113 - 29*26.620.47.82.864
2025-01-01 15:3933004660.0220628.58625 - 60*25.118.613.22.380
2025-01-05 12:0761085070.04083315.89111 - 25*26.822.07.33.757
2025-01-05 21:4336833810.0246229.582190 - 400*20.715.322.20.687
2025-01-08 23:0545281650.03026911.78017 - 40*26.021.69.13.049
2025-01-09 02:1018005620.0120364.6849 - 19*27.518.71.01.678
2025-01-09 18:4647951860.03205412.47540 - 80*24.320.29.01.980
2025-01-11 00:0934706160.0232009.02919 - 40*25.718.96.62.444
2025-01-11 00:3940812390.02728110.61730 - 80*24.420.66.41.698
2025-01-15 14:5163544080.04247716.53140 - 80*24.319.010.92.281
2025-01-16 20:5542584090.02846611.07890 - 210*22.319.513.31.129
2025-01-18 01:5134144650.0228248.8835 - 10*28.823.41.43.230
2025-01-18 22:4163059490.04215316.405180 - 400*20.818.210.20.938
2025-01-31 06:5771126910.04754518.50340 - 90*24.019.49.22.156
2025-02-02 21:1750909050.03403113.24410 - 22*27.122.610.93.990
2025-02-03 10:4964422410.04306416.75919 - 40*25.720.73.42.501
2025-02-04 02:2730023080.0200697.81025 - 60*25.119.512.62.288
2025-02-07 19:1551920570.03470713.5079 - 19*27.423.75.93.844
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Go to upcoming close approaches table

Recent close approaches to Earth

Object designationClose approach date in UTCMiss distance in kmMiss distance in auMiss distance in LDDiameter in mH in magMaximum brightness in magRelative velocity in km/sCAICAI Index
2024-12-20 16:454618280.0030871.2019 - 21*27.317.110.51.979
2024-12-20 00:0048760090.03259412.68511 - 24*26.921.68.83.701
2024-12-19 22:4013982600.0093473.63812 - 27*26.717.75.32.176
2024-12-18 01:5333487210.0223858.71220 - 40*25.720.710.52.661
2024-12-17 22:5231125500.0208068.09710 - 21*27.221.04.83.134
2024-12-17 22:4858575540.03915515.23812 - 27*26.720.85.63.418
2024-12-17 14:146407410.0042831.6672.8 - 6*29.920.814.43.857
2024-12-16 23:5627918160.0186627.26340 - 80*24.418.08.01.447
2024-12-16 23:1167628690.04520717.59340 - 80*24.319.43.71.740
2024-12-16 16:3266901540.04472117.4048 - 19*27.522.710.74.442
2024-12-16 01:5366872060.04470117.39714 - 30*26.421.56.63.449
2024-12-16 00:2535007650.0234019.10718 - 40*25.921.24.82.375
2024-12-15 08:5769990740.04678618.20850 - 110*23.718.814.52.141
2024-12-15 05:3920906220.0139755.43912 - 27*26.720.07.82.787
2024-12-14 23:4352165570.03487113.57126 - 60*25.119.916.32.820
2024-12-13 15:3752758560.03526713.72525 - 60*25.120.420.72.917
2024-12-13 11:3854923230.03671414.28850 - 120*23.418.819.61.893
2024-12-13 04:1065029170.04346916.91750 - 110*23.618.211.61.975
2024-12-12 20:077692220.0051422.0017 - 15*28.018.46.52.610
2024-12-12 02:3131923700.0213408.30523 - 50*25.319.125.62.625
2024-12-12 01:4659915760.04005115.58717 - 40*26.021.58.63.261
2024-12-11 22:15483220.0003230.1262.3 - 5*30.314.918.61.909
2024-12-11 13:428862600.0059242.30611 - 24*27.018.74.71.871
2024-12-11 09:3369113800.04620017.98020 - 40*25.620.66.53.012
2024-12-11 09:0618686250.0124914.8618 - 17*27.720.37.53.312
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