2021 SS3
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Approach11 Oct 202120.11.060 AU0.063 AU24.62 LD9,465,493 km01h30m-04°52'166.6°12.6°
Brightest15 Oct 202119.91.062 AU0.065 AU25.38 LD9,759,120 km01h48m+06°56'173.4°6.2°
Today22 Oct 202120.31.067 AU0.073 AU28.33 LD10,893,753 km02h09m+19°47'169.5°9.7°

Based on its absolute magnitude (Hₒ) of 25.2 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 SS3 is 25 - 55 m.

2021 SS3- 2021-10-22

-1 year
-1 month
-1 day
+1 day
+1 month
+1 year

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.