CLOSE APPROACHES

help/
Last update: 2024-05-09 16:44 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
2024-05-09 04:3441908830.02801410.90220 - 40*25.621.210.42.843
2024-05-09 08:1042077380.02812710.94650 - 120*23.518.425.11.764
2024-05-09 09:34257400.0001720.0674 - 9*29.213.310.90.695
2024-05-09 12:493009560.0020120.78311 - 26*26.816.413.01.410
2024-05-09 18:059127870.0061022.37515 - 30*26.317.919.12.150
2024-05-10 18:1726451710.0176826.88114 - 30*26.421.19.72.873
2024-05-10 19:3154828920.03665114.26425 - 60*25.120.316.12.909
2024-05-10 23:415947170.0039751.5477 - 15*28.118.99.42.652
2024-05-12 15:3216878000.0112824.3916 - 14*28.221.53.32.950
2024-05-13 04:5244397240.02967811.55060 - 140*23.217.617.71.581
2024-05-14 02:4260426130.04039215.72090 - 190*22.418.623.11.623
2024-05-14 09:4127403130.0183187.12940 - 80*24.317.618.91.779
2024-05-14 17:1521768250.0145515.66313 - 29*26.619.28.62.780
2024-05-15 05:2856474680.03775114.69226 - 60*25.019.713.42.813
2024-05-15 12:3064230220.04293516.70921 - 50*25.520.05.72.752
2024-05-16 23:3835992240.0240599.3638 - 18*27.622.218.54.151
2024-05-17 06:2643023420.02875911.19216 - 40*26.119.87.42.982
2024-05-17 08:3552459090.03506713.6475 - 10*28.823.85.54.662
2024-05-18 20:4821730400.0145265.65310 - 23*27.119.93.02.364
2024-05-20 11:5372894250.04872718.96321 - 50*25.520.35.52.845
2024-05-20 22:0828514590.0190617.41880 - 170*22.717.015.60.984
2024-05-21 22:3828921790.0193337.5241.3 - 2.9*31.626.36.35.590
2024-05-23 13:5456125390.03751814.601200 - 400*20.617.913.90.915
2024-05-23 17:0159212440.03958115.404160 - 300*21.216.67.70.828
2024-05-25 00:4222245200.0148705.78715 - 30*26.218.12.31.627
Download:
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
2024-05-08 15:353764940.0025170.97915 - 30*26.314.918.51.347
2024-05-08 14:5440160730.02684610.44819 - 40*25.720.912.32.940
2024-05-08 13:302757390.0018430.7178 - 18*27.617.13.31.104
2024-05-08 06:3019175860.0128184.98916 - 40*26.118.720.02.680
2024-05-07 04:126512480.0043531.6947 - 16*27.918.314.42.793
2024-05-07 00:012955630.0019760.7698 - 17*27.717.113.01.939
2024-05-06 21:574753980.0031781.2375 - 12*28.518.611.72.820
2024-05-06 21:2047956810.03205712.4769 - 20*27.320.66.93.806
2024-05-06 20:1412060390.0080623.13717 - 40*25.917.512.12.000
2024-05-06 14:4866531930.04447417.30840 - 90*24.120.425.12.469
2024-05-06 08:1129069090.0194317.56220 - 40*25.619.513.42.624
2024-05-05 21:3318891860.0126284.91540 - 80*24.318.85.20.823
2024-05-05 18:5519046220.0127324.95515 - 30*26.218.811.02.569
2024-05-05 08:3612899930.0086233.35617 - 40*26.017.78.81.941
2024-05-05 07:4518214980.0121764.73922 - 50*25.418.128.92.220
2024-05-04 19:436891640.0046071.79323 - 50*25.414.98.60.999
2024-05-04 15:1152941210.03538913.77240 - 80*24.219.27.81.936
2024-05-04 03:2226563370.0177576.91050 - 110*23.717.911.81.246
2024-05-03 13:5451719380.03457213.45550 - 120*23.518.59.01.595
2024-05-03 13:294009770.0026801.0435 - 11*28.717.59.42.718
2024-05-03 02:1612841710.0085843.34140 - 90*24.115.824.31.002
2024-05-02 20:0322238930.0148665.78530 - 80*24.517.913.21.590
2024-05-01 21:5029085960.0194437.56720 - 40*25.619.418.32.720
2024-05-01 05:3430608790.0204617.96330 - 70*24.718.519.42.102
2024-05-01 01:4115359350.0102673.9968 - 17*27.719.66.23.031
Download: