2021 TC1
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest19 Sep 202322.11.114 AU0.120 AU46.87 LD18,021,422 km22h14m+12°35'153.5°23.7°
Today25 Sep 202322.21.093 AU0.110 AU42.94 LD16,508,004 km21h41m+10°56'142.8°33.7°
Approach15 Oct 202323.11.011 AU0.098 AU38.19 LD14,681,077 km19h41m+01°04'95.5°79.0°

Based on its absolute magnitude (Hₒ) of 25.3 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 TC1 is 25 - 50 m.

2021 TC1- 2023-09-25

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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.