CLOSE APPROACHES

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Last update: 2024-04-16 14:43 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
2024-04-16 13:1330593440.0204507.95912 - 26*26.820.28.23.175
2024-04-16 14:184671980.0031231.21514 - 30*26.316.318.51.568
2024-04-16 17:2770689380.04725318.39014 - 30*26.321.93.22.974
2024-04-16 18:3753155650.03553213.82820 - 40*25.620.512.93.132
2024-04-16 21:406952650.0046481.80917 - 40*25.918.918.31.657
2024-04-17 01:5113271620.0088723.45321 - 50*25.618.010.41.792
2024-04-17 14:4636979850.0247209.62010 - 22*27.220.67.43.538
2024-04-18 05:4161646390.04120816.03740 - 90*24.221.513.02.278
2024-04-18 08:359743370.0065132.5357 - 15*27.919.38.12.928
2024-04-18 16:3610299710.0068852.6799 - 21*27.317.87.12.462
2024-04-18 21:1460548140.04047415.75127 - 60*25.019.919.12.913
2024-04-18 21:2064118850.04286116.68020 - 40*25.621.211.73.245
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
2024-04-19 19:0327693510.0185127.2047 - 15*28.021.210.43.991
2024-04-19 20:1173850100.04936619.21216 - 40*26.121.45.23.183
2024-04-20 03:2852987060.03542013.78411 - 25*26.921.74.53.312
2024-04-20 09:218829670.0059022.29712 - 27*26.719.48.22.061
2024-04-21 16:0871661290.04790318.64270 - 150*22.921.810.81.722
2024-04-22 23:2515449380.0103274.01910 - 22*27.219.69.02.875
2024-04-25 09:0235648340.0238299.2745 - 11*28.723.62.73.738
2024-04-26 02:4247990740.03208012.48527 - 60*25.020.99.12.477
2024-04-28 06:1437791580.0252629.83116 - 40*26.020.68.02.874
2024-04-28 07:0540416580.02701710.51426 - 60*25.121.012.82.519
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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
2024-04-15 17:2954611130.03650514.20723 - 50*25.319.69.52.791
2024-04-15 16:46686060.0004590.1782.5 - 6*30.115.05.01.635
2024-04-15 14:4932566580.0217698.472400 - 1000*18.912.616.5-0.063
2024-04-15 14:0770293240.04698818.287400 - 1000*18.917.914.20.536
2024-04-15 05:5632406560.0216628.43010 - 22*27.220.69.13.521
2024-04-15 04:6041847700.02797310.88710 - 22*27.121.18.63.713
2024-04-15 00:1042715750.02855411.11221 - 50*25.620.68.72.707
2024-04-14 20:2817966620.0120104.67410 - 22*27.219.95.22.685
2024-04-14 17:1863711950.04258916.57426 - 60*25.123.114.02.952
2024-04-14 10:5512726630.0085073.31110 - 23*27.120.04.92.297
2024-04-14 01:5836423770.0243489.47640 - 90*24.017.818.11.839
2024-04-13 22:3533709620.0225338.76924 - 50*25.217.510.52.357
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 20:3736213580.0242079.42119 - 40*25.719.412.62.826
2024-04-11 20:0336936660.0246919.60919 - 40*25.718.47.72.613
2024-04-11 18:29186740.0001250.0492.3 - 5*30.313.214.41.059
2024-04-11 05:467923900.0052972.0618 - 17*27.718.415.72.871
2024-04-11 03:2466407880.04439117.27630 - 70*24.719.719.72.828
2024-04-10 14:0845111460.03015511.73625 - 60*25.119.811.92.629
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