2021 AC1
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest13 Jan 202119.40.993 AU0.023 AU8.77 LD3,373,278 km02h34m+40°08'113.4°65.5°
Today16 Jan 202119.50.989 AU0.021 AU8.14 LD3,130,246 km01h22m+55°22'103.2°75.7°
Approach16 Jan 202119.60.988 AU0.021 AU8.13 LD3,126,560 km01h07m+57°15'101.7°77.1°

Based on its absolute magnitude (Hₒ) of 25.3 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 AC1 is 25 - 50 m.

2021 AC1- 2021-01-16

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The interactive orbit chart above shows the near-earth object's path through the solar system and its position at the given date. Green and blue lines are shown perpendicular to the ecliptic plane: Green if the path is above the ecliptic plane, blue if it is below.

(Left-click and drag to rotate the view; right-click and drag to move the view; use scroll wheel to zoom in our out.)

The light curve chart below shows the estimated development of the NEO's magnitude during its approach to earth.

The following all-sky chart shows the path of the NEO in the coming months.