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. 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. Entries are by default sorted by date, but the sorting can be changed by clicking on the table headers.

Last update: 2019-07-19 22:57 UTC
Upcoming close approaches to Earth
1 au = 149597870.7 km
1 LD = 384399 km
Distances are computed from the center of the Earth
Object Name Close Approach Date Miss Distance [km] Miss Distance [au] Miss Distance [LD] Diameter [m] H [mag] Maximum Brightness [mag] Relative Velocity [km/s]
2019AE3 2020-Jan-02 1869540 0.012497 4.864 12* 27.3 20.4 3.6
Recent close approaches to Earth
1 au = 149597870.7 km
1 LD = 384399 km
Distances are computed from the center of the Earth
Object Name Close Approach Date Miss Distance [km] Miss Distance [au] Miss Distance [LD] Diameter [m] H [mag] Maximum Brightness [mag] Relative Velocity [km/s]
2019OB 2019-Jul-16 1019001 0.006812 2.651 23* 25.9 17 4.8
2019KD3 2019-Jul-12 5946919 0.039753 15.471 80* 23.2 118.4 60

*Estimated from the absolute magnitude using