CLOSE APPROACHES

Last update: 2021-10-18 12:52 UTC

Every month dozens of NEAs come within 0.05 au to the Earth. The following table presents the list of forthcoming and recent close approaches within this distance, 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. Note that when the encounter occurs in daylight, the maximum brightness value is incremented by 100 to highlight that the geometry is unfavourable for observations. For a detailed description see the Definitions and Assumptions page. By default, entries are sorted by date; the sorting can be changed by clicking on the table headers.

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 nameClose Approach DateMiss Distance [km]Miss Distance [au]Miss Distance [LD]Diameter [m]H [mag]Maximum Brightness [mag]Relative Velocity [km/s]
2021-10-182498030.0016700.6508*28.316.911.4
2021-10-1824368920.0162906.33940*2518.615.8
2021-10-1831387150.0209818.16511*27.520.87.8
2021-10-1927952590.0186857.2726*28.8122.85.9
2021-10-1934549540.0230958.98830*25.3121.910.7
2021-10-195126590.0034271.33417*26.616.610.6
2021-10-1947315950.03162912.30970*23.718.622.5
2021-10-2033649080.0224938.754140*2216.415.3
2021-10-2150460210.03373113.12750*24.418.212.6
2021-10-2131906150.0213288.30014*27121.86
2021-10-2161023530.04079215.87527*25.620.45.9
2021-10-2159200140.03957315.40150*24.1120.45.1
2021-10-2336198140.0241979.41740*24.511912.4
2021-10-2455794280.03729614.51513*27.224.29.7
2021-10-2571502690.04779718.601120*22.4118.315.7
2021-10-2527915360.0186607.26230*25.21912.6
2021-10-2630498250.0203877.93417*26.619.111.1
2021-11-0273480860.04911919.11650*24.1122.414.7
2021-11-0272877490.04871618.95940*24.820.59.6
2021-11-0253162920.03553713.830130*22.217.69.9
2021-11-0465254350.04362016.97620*26.3121.55.2
2021-11-0568287390.04564717.76513*27.122.83.7
2021-11-0657293900.03829914.90511*27.523.14.8
2021-11-0732970340.0220398.5777*28.422.94.8
2021-11-0859857880.04001315.57270*23.520.19.3
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Go to upcoming close approaches table

Recent close approaches to Earth

Object nameClose Approach DateMiss Distance [km]Miss Distance [au]Miss Distance [LD]Diameter [m]H [mag]Maximum Brightness [mag]Relative Velocity [km/s]
2021-10-176335330.0042351.6488*28.218.48.6
2021-10-1721056450.0140755.47822*26.119.79.6
2021-10-1758625810.03918915.251100*22.8118.317
2021-10-1628680860.0191727.46119*26.419.818
2021-10-163842560.0025691.0007*28.417.812.3
2021-10-157833800.0052372.03813*27.116.98.8
2021-10-1522417970.0149855.83212*27.419.89.8
2021-10-1526870770.0179626.99013*27.220.410
2021-10-157341450.0049071.91010*27.819.211.6
2021-10-1549743150.03325112.94090*22.91815.8
2021-10-1521069800.0140845.48119*26.418.17.3
2021-10-1438175480.0255199.93130*25.119.619.8
2021-10-1456771550.03794914.76930*25.41910.7
2021-10-1419519840.0130485.0788*28.120.93.1
2021-10-1426312650.0175896.84527*25.619.17.2
2021-10-1455984350.03742314.56430*25.321.56.6
2021-10-1441692620.02787010.84612*27.3204.2
2021-10-144789160.0032011.24614*2715.56
2021-10-141465530.0009800.3819*28128.58.5
2021-10-1416667330.0111414.33610*27.719.612.3
2021-10-1354769060.03661114.24823*25.919.116.7
2021-10-139417510.0062952.4509*28188.6
2021-10-136222800.0041601.6197*28.518.510.7
2021-10-1252874750.03534513.75515*26.8121.13.9
2021-10-1239892260.02666610.37814*26.920.78.6
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*Estimated from the absolute magnitude using