CLOSE APPROACHES

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Last update: 2024-12-12 00:02 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
2024-12-12 01:4659915760.04005115.58717 - 40*26.021.58.63.261
2024-12-12 02:3131923700.0213408.30523 - 50*25.319.125.62.625
2024-12-12 20:077693460.0051432.0017 - 15*27.918.46.52.580
2024-12-13 04:1064685690.04324016.82850 - 110*23.618.211.51.942
2024-12-13 15:3752758560.03526713.72525 - 60*25.120.420.72.917
2024-12-14 23:4352165570.03487113.57126 - 60*25.119.916.32.820
2024-12-15 05:3920906220.0139755.43912 - 27*26.720.07.82.787
2024-12-15 08:5770066160.04683618.22750 - 110*23.718.914.52.181
2024-12-16 00:2635080920.0234509.12618 - 40*25.821.24.82.343
2024-12-16 01:5366872060.04470117.39714 - 30*26.421.56.63.449
2024-12-16 16:3266901540.04472117.4048 - 19*27.522.710.74.442
2024-12-16 23:0967695170.04525117.61140 - 80*24.319.33.71.700
2024-12-16 23:5627919040.0186637.26330 - 80*24.418.18.01.516
2024-12-17 07:518820820.0058962.29513 - 29*26.618.27.71.944
2024-12-17 14:146407410.0042831.6672.8 - 6*29.920.814.43.857
2024-12-17 22:4858583440.03916115.24012 - 27*26.720.85.63.465
2024-12-18 01:5433496110.0223918.71421 - 50*25.520.610.52.577
2024-12-20 00:0848602370.03248912.64411 - 24*26.921.68.83.715
2024-12-21 09:0637763830.0252449.82415 - 30*26.321.19.73.120
2024-12-21 09:3110533360.0070412.74013 - 28*26.618.013.22.369
2024-12-24 02:5572338810.04835618.81929 - 70*24.819.56.62.490
2024-12-25 20:3350422710.03370613.11740 - 100*24.020.219.42.090
2024-12-25 21:1938684370.02585910.06430 - 70*24.720.29.22.098
2024-12-27 21:5465329330.04367016.9955 - 11*28.625.99.85.079
2024-12-31 03:4525836210.0172706.72113 - 29*26.620.47.82.864
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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
2024-12-11 18:054474910.0029911.16411 - 24*27.016.94.81.293
2024-12-11 09:3369113800.04620017.98020 - 40*25.620.66.53.012
2024-12-11 09:0618686250.0124914.8618 - 17*27.720.37.53.312
2024-12-11 08:2664424040.04306516.76022 - 50*25.420.310.83.082
2024-12-11 06:2847060580.03145812.24317 - 40*26.019.210.63.151
2024-12-10 23:5911842320.0079163.0815 - 11*28.619.811.03.679
2024-12-10 20:5818068710.0120784.70113 - 28*26.617.48.32.617
2024-12-10 11:1226567660.0177596.91116 - 40*26.122.28.92.682
2024-12-09 17:1661344860.04100715.95930 - 80*24.419.221.32.556
2024-12-09 17:0319834570.0132595.16010 - 23*27.019.55.92.750
2024-12-09 15:0334053100.0227638.8599 - 21*27.321.112.03.788
2024-12-09 14:456976540.0046641.81526 - 60*25.115.923.51.157
2024-12-09 09:3568980750.04611117.94550 - 110*23.622.210.21.975
2024-12-09 05:209261710.0061912.4098 - 18*27.617.88.42.700
2024-12-08 23:0237176850.0248519.6717 - 15*28.020.77.84.136
2024-12-08 20:4564800110.04331616.85830 - 70*24.621.14.82.042
2024-12-08 20:3328693600.0191807.46511 - 25*26.920.514.83.468
2024-12-08 17:311630900.0010900.4246 - 14*28.215.45.21.323
2024-12-08 16:0159451270.03974115.46621 - 50*25.521.012.23.099
2024-12-08 15:3622010030.0147135.72618 - 40*25.818.48.82.325
2024-12-08 04:1046427350.03103512.07821 - 50*25.620.912.92.967
2024-12-07 21:0956488480.03776014.69511 - 24*26.921.97.03.720
2024-12-07 19:5523021450.0153895.98911 - 25*26.920.46.92.907
2024-12-07 18:0112342080.0082503.2117 - 16*27.919.418.13.423
2024-12-07 16:1116073720.0107454.1829 - 21*27.318.17.62.913
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