CLOSE APPROACHES

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Last update: 2024-07-22 12:58 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
2024-07-23 03:1750317840.03363513.09023 - 50*25.420.55.52.435
2024-07-23 07:5145943640.03071111.95270 - 160*22.920.87.81.148
2024-07-25 13:2838591020.02579710.03990 - 210*22.317.18.00.812
2024-07-25 17:3253852820.03599814.01025 - 60*25.120.610.22.710
2024-07-26 08:3917957300.0120044.67222 - 50*25.421.05.81.611
2024-07-26 15:5564492210.04311016.777210 - 500*20.516.36.20.596
2024-07-28 01:2974604490.04987019.40840 - 100*23.919.712.72.301
2024-07-28 02:4657173170.03821814.873500 - 1200*18.518.323.70.344
2024-08-02 00:0320234540.0135265.26440 - 90*24.116.27.61.027
2024-08-02 12:5968935070.04608017.93322 - 50*25.421.55.52.736
2024-08-05 03:4156186830.03755914.61725 - 60*25.121.66.12.452
2024-08-05 20:3044415910.02969011.55517 - 40*26.020.410.03.122
2024-08-08 03:2255000110.03676514.3084 - 9*29.024.521.95.397
2024-08-10 15:1155761750.03727414.506150 - 300*21.314.511.41.011
2024-08-14 00:3073070720.04884519.00960 - 140*23.218.817.12.016
2024-08-16 10:3167596170.04518517.58550 - 100*23.820.36.31.767
2024-08-19 10:0645902050.03068411.941160 - 400*21.118.011.10.778
2024-08-19 12:2370291190.04698718.28670 - 160*22.919.316.51.845
2024-08-24 07:5970459500.04709918.3308 - 17*27.722.29.74.571
2024-08-27 04:4744133540.02950111.48127 - 60*24.919.48.22.301
2024-08-28 20:4725922900.0173286.74423 - 50*25.322.74.91.766
2024-08-29 21:1042431090.02836311.03815 - 30*26.221.34.32.644
2024-08-30 22:1169928590.04674418.19250 - 110*23.619.514.82.135
2024-09-02 00:5564108730.04285416.6789 - 21*27.323.28.34.145
2024-09-02 08:0249491190.03308312.87512 - 26*26.821.38.53.612
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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
2024-07-21 21:3042500680.02841011.05640 - 100*23.921.59.31.643
2024-07-17 14:487785330.0052042.02526 - 60*25.116.47.40.838
2024-07-17 11:2648326700.03230412.57250 - 120*23.518.420.31.825
2024-07-17 11:2112268950.0082013.19212 - 26*26.818.46.42.246
2024-07-16 06:5761890770.04137116.10112 - 27*26.721.10.71.910
2024-07-15 06:1542531160.02843011.06428 - 60*24.919.47.22.125
2024-07-13 19:3438350620.0256369.97726 - 60*25.119.313.32.506
2024-07-13 08:5949815810.03330012.95930 - 70*24.721.013.32.416
2024-07-13 07:5734442060.0230238.96014 - 30*26.421.87.02.939
2024-07-11 13:2942122160.02815710.95830 - 70*24.824.45.81.906
2024-07-11 06:191187310.0007940.3095 - 11*28.615.410.61.681
2024-07-10 14:3643458590.02905011.30630 - 70*24.817.78.42.165
2024-07-09 23:3422455310.0150105.84224 - 50*25.218.74.11.411
2024-07-09 21:3464881270.04337016.87920 - 40*25.720.48.43.125
2024-07-09 14:5355905660.03737114.54450 - 110*23.719.29.71.823
2024-07-08 01:0915069830.0100743.92060 - 130*23.215.318.10.672
2024-07-06 00:046822140.0045601.77513 - 30*26.517.017.92.021
2024-07-04 04:0657009210.03810814.83140 - 90*24.218.66.91.894
2024-07-03 20:0351851230.03466013.48950 - 100*23.818.115.61.995
2024-07-03 17:0371263230.04763718.53970 - 160*22.918.911.71.737
2024-07-02 23:5018128260.0121184.71621 - 50*25.517.612.72.138
2024-07-02 21:4570833540.04734918.42730 - 80*24.519.67.32.301
2024-07-02 16:4252162550.03486913.57028 - 60*24.919.25.52.175
2024-07-02 11:0716770150.0112104.36325 - 60*25.132.24.31.163
2024-07-02 02:1650698700.03389013.1892.9 - 7*29.826.93.04.644
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