CLOSE APPROACHES

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Last update: 2024-04-12 18:18 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
2024-04-12 03:3055000550.03676614.30824 - 50*25.220.313.92.940
2024-04-12 21:2236543110.0244289.50722 - 50*25.420.411.72.645
2024-04-13 04:5134646470.0231609.0136 - 13*28.424.87.54.259
2024-04-13 06:128769100.0058622.2819 - 20*27.417.36.82.359
2024-04-13 11:365104010.0034121.3285 - 12*28.519.110.92.896
2024-04-13 18:1710199970.0068182.65317 - 40*26.017.36.31.579
2024-04-13 20:5338217810.0255479.94216 - 40*26.121.07.42.849
2024-04-14 01:5836456720.0243709.48440 - 90*24.117.918.11.863
2024-04-14 10:5512726630.0085073.31110 - 23*27.120.04.92.297
2024-04-14 17:1863711950.04258916.57426 - 60*25.123.114.02.952
2024-04-15 00:1042715750.02855411.11221 - 50*25.620.68.72.707
2024-04-15 04:6041847700.02797310.88710 - 22*27.121.18.63.713
2024-04-15 05:5632443600.0216878.44010 - 21*27.220.79.13.567
2024-04-15 14:0770293230.04698818.287400 - 1000*18.917.914.20.536
2024-04-15 14:4932566880.0217708.472400 - 1000*18.912.616.5-0.063
2024-04-15 17:2954701270.03656614.23025 - 60*25.119.49.52.710
2024-04-16 14:184666930.0031201.21414 - 30*26.516.418.51.661
2024-04-16 17:2770689380.04725318.39014 - 30*26.321.93.22.974
2024-04-16 18:3853232250.03558413.84821 - 50*25.520.412.93.060
2024-04-17 01:5013247190.0088553.44621 - 50*25.517.910.41.769
2024-04-18 05:4161650980.04121116.03840 - 80*24.321.613.02.330
2024-04-18 21:1460548140.04047415.75127 - 60*25.019.919.12.913
2024-04-19 03:3973565090.04917519.13822 - 50*25.420.67.53.004
2024-04-19 07:106564520.0043881.7088 - 18*27.519.45.12.040
2024-04-19 07:5216027930.0107144.1706 - 13*28.421.46.23.474
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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
2024-04-11 20:0336938220.0246929.60920 - 40*25.718.47.72.580
2024-04-11 18:29186740.0001250.0492.4 - 5*30.213.114.41.041
2024-04-10 14:0845111460.03015511.73625 - 60*25.119.811.92.629
2024-04-10 08:25715710.0004780.1863 - 7*29.616.010.21.697
2024-04-09 11:185543700.0037061.4426 - 12*28.418.213.42.970
2024-04-09 04:151075770.0007190.2804 - 9*29.114.54.71.420
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 08:5616161320.0108034.20420 - 40*25.719.08.21.906
2024-04-08 08:4620933540.0139935.44640 - 90*24.117.66.70.958
2024-04-08 01:1939617960.02648310.30624 - 50*25.219.310.32.487
2024-04-07 23:2452609090.03516713.68640 - 90*24.218.99.01.974
2024-04-07 18:3061371000.04102415.96590 - 210*22.320.019.71.563
2024-04-07 10:2317046420.0113954.4357 - 16*27.920.44.73.009
2024-04-07 07:2652343390.03498913.61720 - 40*25.620.211.23.068
2024-04-07 06:3247322700.03163312.31140 - 90*24.019.39.81.846
2024-04-05 22:5957626400.03852114.99112 - 27*26.720.65.63.437
2024-04-05 20:5315776450.0105464.1048 - 18*27.618.43.22.488
2024-04-05 20:0717089730.0114244.44611 - 24*27.019.06.12.627
2024-04-05 19:1039419680.02635010.25516 - 30*26.219.713.13.212
2024-04-05 17:058353850.0055842.17314 - 30*26.517.529.52.246
2024-04-05 12:5621552160.0144075.6079 - 21*27.319.44.12.729
2024-04-04 21:5212910710.0086303.3596 - 14*28.119.18.93.330
2024-04-04 12:438973900.0059992.33513 - 29*26.618.38.82.024
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