CLOSE APPROACHES

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Last update: 2024-04-20 00:03 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 (in blue), frequent (in green), infrequent (in yellow), rare (in orange) or very rare (in red). For example, the close approach to Earth of asteroid (99942) Apophis in 2029 will be a very rare event. 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
No records found.
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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
2024-04-13 20:5338101880.0254709.91217 - 40*26.020.97.32.796
2024-04-13 18:1710199970.0068182.65317 - 40*26.017.36.31.579
2024-04-13 11:365104010.0034121.3285 - 12*28.519.110.92.896
2024-04-13 06:128769100.0058622.2819 - 20*27.417.36.82.359
2024-04-13 04:5134646470.0231609.0136 - 13*28.424.87.54.259
2024-04-12 21:2236543110.0244289.50722 - 50*25.420.411.72.645
2024-04-12 03:3055014320.03677514.31223 - 50*25.320.313.92.963
2024-04-11 20:3736217070.0242109.42219 - 40*25.719.412.62.815
2024-04-11 20:0336937160.0246919.60919 - 40*25.718.47.72.613
2024-04-11 18:29186740.0001250.0492.3 - 5*30.313.214.41.059
2024-04-11 05:467925200.0052982.0628 - 17*27.718.415.72.896
2024-04-11 03:2566198440.04425117.22130 - 70*24.719.719.72.804
2024-04-10 14:0845111460.03015511.73625 - 60*25.119.811.92.629
2024-04-10 12:5028443370.0190137.39912 - 28*26.719.58.33.040
2024-04-10 08:25715520.0004780.1863 - 7*29.616.010.21.709
2024-04-09 12:071262600.0008440.3283 - 8*29.417.49.32.064
2024-04-09 11:185543700.0037061.4426 - 12*28.418.213.42.970
2024-04-09 04:151075720.0007190.2804 - 9*29.114.64.71.433
2024-04-09 04:051632900.0010920.4255 - 10*28.815.312.12.089
2024-04-09 02:3158135980.03886115.124160 - 400*21.116.46.80.715
2024-04-08 13:0170519000.04713918.34540 - 100*24.020.45.51.813
2024-04-08 12:3721508530.0143785.59510 - 22*27.219.39.93.230
2024-04-08 08:5616160000.0108024.20419 - 40*25.819.18.21.958
2024-04-08 08:4620933540.0139935.44640 - 90*24.117.66.70.958
2024-04-08 01:1939580330.02645810.29724 - 50*25.319.410.32.538
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