CLOSE APPROACHES

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Last update: 2024-09-12 11:51 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 (Bullet Cyan Circle), frequent (Bullet Green Circle), infrequent (Bullet Yellow Circle), rare (Bullet Orange Circle), or very rare (Bullet Red Circle). For example, the close approach to Earth of asteroid (99942) Apophis in 2029 will be a very rare event (this case will only appear in the list of upcoming close approaches since April 2028). 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
2024-09-12 04:0829915250.0199977.78227 - 60*25.018.34.21.570
2024-09-12 06:0146236130.03090712.028100 - 230*22.118.214.31.160
2024-09-12 07:0439216070.02621410.20218 - 40*25.818.47.42.699
2024-09-12 08:0218045520.0120634.69410 - 21*27.219.76.52.857
2024-09-12 18:0648225060.03223612.54618 - 40*25.820.616.83.244
2024-09-13 20:1818509010.0123734.81511 - 24*27.019.210.22.986
2024-09-13 22:1153534140.03578513.92726 - 60*25.120.710.92.717
2024-09-14 00:2314915710.0099713.8809 - 20*27.418.15.72.717
2024-09-14 07:0421119500.0141185.4946 - 14*28.120.29.83.825
2024-09-14 21:0310239360.0068452.6646 - 13*28.218.85.6-
2024-09-14 23:5962624600.04186216.29217 - 40*26.021.19.63.383
2024-09-15 04:1019887980.0132945.17421 - 50*25.516.96.61.848
2024-09-15 05:564314530.0028841.1227 - 15*27.917.15.92.036
2024-09-15 17:1225019250.0167246.50915 - 30*26.319.810.52.798
2024-09-15 22:2239952840.02670710.39412 - 27*26.722.04.93.007
2024-09-16 10:365244320.0035061.36426 - 60*25.114.46.70.446
2024-09-16 17:3847559860.03179212.37350 - 110*23.719.323.21.930
2024-09-17 10:189999910.0066852.601210 - 500*20.512.08.9-0.822
2024-09-17 15:3117781710.0118864.62613 - 28*26.621.35.32.319
2024-09-18 06:2832494250.0217218.453120 - 270*21.716.815.60.781
2024-09-18 10:4540815830.02728410.61816 - 40*26.120.913.13.222
2024-09-18 12:3132268720.0215708.39540 - 80*24.318.117.41.906
2024-09-19 02:0726290720.0175746.83929 - 60*24.818.99.21.832
2024-09-19 10:0343292940.02894011.2636 - 14*28.122.95.94.138
2024-09-20 01:2158857400.03934415.31230 - 70*24.720.58.92.394
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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
2024-09-11 22:504289430.0028671.1169 - 20*27.417.513.32.088
2024-09-11 17:0935025180.0234139.11219 - 40*25.820.59.42.725
2024-09-11 15:5346818550.03129612.18040 - 80*24.420.710.02.056
2024-09-11 12:5633104510.0221298.61228 - 60*24.917.85.11.703
2024-09-11 02:5913509180.0090303.51411 - 25*26.918.414.12.771
2024-09-10 15:5118373820.0122824.78014 - 30*26.418.36.22.311
2024-09-10 15:2464206660.04291916.70320 - 40*25.620.011.43.234
2024-09-10 08:3558885650.03936315.31914 - 30*26.422.419.13.830
2024-09-10 07:166714870.0044891.7478 - 17*27.716.65.42.191
2024-09-10 00:1364314540.04299216.7319 - 21*27.321.07.14.066
2024-09-09 19:536842300.0045741.78014 - 30*26.416.69.21.700
2024-09-09 16:2453506230.03576713.91940 - 90*24.118.99.01.970
2024-09-09 15:0120400990.0136375.30714 - 30*26.518.811.92.805
2024-09-09 14:4858573540.03915415.2386 - 14*28.223.84.24.172
2024-09-09 14:4634541630.0230908.98621 - 50*25.519.113.22.687
2024-09-09 10:0314217800.0095043.69913 - 28*26.617.25.52.165
2024-09-09 04:2913888360.0092843.61315 - 30*26.218.616.62.432
2024-09-09 00:3846406940.03102112.07330 - 70*24.619.49.32.143
2024-09-09 00:3750606060.03382813.16517 - 40*26.020.512.53.323
2024-09-08 23:0515218840.0101733.95925 - 60*25.117.811.51.666
2024-09-08 17:231629930.0010900.4243 - 7*29.716.713.92.586
2024-09-08 11:0646282450.03093812.04040 - 100*24.018.314.11.931
2024-09-08 02:2837592140.0251299.77930 - 70*24.618.46.41.755
2024-09-08 00:035865940.0039211.5268 - 18*27.617.28.92.306
2024-09-07 23:4916240820.0108564.22517 - 40*25.917.511.92.268
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