CLOSE APPROACHES

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Last update: 2024-05-21 14:44 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
2024-05-21 04:2742021370.02809010.93214 - 30*26.321.46.33.008
2024-05-21 18:2825265250.0168896.57318 - 40*25.919.210.32.530
2024-05-21 21:4916282900.0108844.2366 - 12*28.420.04.63.292
2024-05-21 22:3828921790.0193337.5241.3 - 2.9*31.626.36.35.590
2024-05-22 18:3025475250.0170296.62750 - 110*23.718.510.81.171
2024-05-23 14:0855941510.03739514.553190 - 400*20.718.013.80.940
2024-05-23 17:0159210570.03958015.403150 - 300*21.316.67.70.853
2024-05-23 23:2162959030.04208616.37921 - 50*25.521.16.22.837
2024-05-25 00:4222255700.0148775.79015 - 30*26.218.12.31.603
2024-05-26 18:0766873180.04470217.39740 - 90*24.019.310.32.145
2024-05-26 22:0537520120.0250819.76122 - 50*25.422.26.02.293
2024-05-27 08:4330676240.0205067.98015 - 30*26.220.08.82.854
2024-05-28 07:4729634340.0198097.7094 - 10*28.923.94.54.036
2024-05-28 15:0866179950.04423917.21640 - 80*24.419.08.42.259
2024-05-29 01:2346106260.03082011.9947 - 16*27.823.015.54.474
2024-05-29 03:3733406260.0223318.69122 - 50*25.419.47.42.284
2024-05-30 01:3623865950.0159536.20927 - 60*25.018.28.51.802
2024-05-31 13:0252883320.03535013.75770 - 150*23.018.414.71.621
2024-06-01 04:1470859010.04736618.43419 - 40*25.719.84.72.844
2024-06-01 05:4357817090.03864815.04125 - 60*25.221.84.82.339
2024-06-01 16:0345893250.03067811.939<4025.620.55.32.060
2024-06-05 11:0574182380.04958819.29870 - 150*23.020.614.61.904
2024-06-05 13:0445160570.03018811.74815 - 30*26.322.27.83.182
2024-06-06 21:0236722770.0245489.55370 - 150*23.018.49.81.116
2024-06-11 00:0173662820.04924119.163300 - 700*19.614.27.40.524
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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
2024-05-20 22:0828514630.0190617.41880 - 170*22.717.015.60.961
2024-05-20 11:5372880950.04871818.96020 - 50*25.620.45.52.910
2024-05-19 16:5722867600.0152865.94912 - 26*26.819.69.83.039
2024-05-18 20:4921736950.0145305.65510 - 23*27.019.83.02.332
2024-05-17 22:1723791500.0159046.1899 - 21*27.219.66.13.067
2024-05-17 10:0839025760.02608710.15220 - 40*25.619.79.32.709
2024-05-17 08:3552459090.03506713.6475 - 10*28.823.85.54.662
2024-05-17 06:2542986640.02873511.18314 - 30*26.420.27.43.178
2024-05-17 05:2036741660.0245609.55819 - 40*25.819.67.62.628
2024-05-17 03:4618308540.0122394.7639 - 20*27.320.27.93.067
2024-05-16 23:3835992240.0240599.3638 - 18*27.622.218.54.151
2024-05-16 06:2426863530.0179576.98811 - 25*26.819.86.12.927
2024-05-15 20:2929591840.0197817.69817 - 40*25.918.511.12.747
2024-05-15 13:3220714510.0138475.38912 - 27*26.719.110.42.904
2024-05-15 12:3064230220.04293516.70921 - 50*25.520.05.72.752
2024-05-15 07:385323600.0035591.3859 - 21*27.216.114.12.207
2024-05-15 05:2856475290.03775114.69226 - 60*25.019.713.42.819
2024-05-15 01:093363070.0022480.87530 - 70*24.714.116.80.208
2024-05-14 21:6016882450.0112854.39212 - 26*26.819.219.52.998
2024-05-14 17:1621768010.0145515.66313 - 28*26.619.28.62.801
2024-05-14 09:48249780.0001670.0653 - 8*29.512.99.30.782
2024-05-14 09:4127403090.0183187.12940 - 80*24.417.618.91.802
2024-05-14 02:4260426180.04039215.72090 - 190*22.518.723.11.631
2024-05-14 00:2756899480.03803514.80226 - 60*25.019.619.82.932
2024-05-13 23:1171976530.04811318.72450 - 120*23.520.025.32.202
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