2021 GD1
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest7 Apr 202118.11.038 AU0.056 AU21.73 LD8,354,534 km09h53m+09°20'129.6°48.0°
Approach9 Apr 202118.41.023 AU0.051 AU20.00 LD7,690,980 km09h22m+31°16'113.1°64.2°
Today11 Apr 202119.21.008 AU0.056 AU21.90 LD8,420,799 km08h30m+53°23'94.0°82.8°

Based on its absolute magnitude (Hₒ) of 22.5 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 GD1 is 85 - 185 m.

2021 GD1- 2021-04-11
astro.vanbuitenen.nl


 
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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.





The following chart shows the path of the NEO in the coming days or hours. The field of view is optimized for (~10x50) binoculars and finderscopes. A more printer-friendly version of the same chart can be found below.