2021 TC1
ephemeris	date	magn	radius	delta (AU)	delta (LD)	delta (km)	ra	dec	elong	phase
Brightest	19 Sep 2023	22.1	1.114 AU	0.120 AU	46.87 LD	18,021,422 km	22h14m	+12°35'	153.5°	23.7°
Today	25 Sep 2023	22.2	1.093 AU	0.110 AU	42.94 LD	16,508,004 km	21h41m	+10°56'	142.8°	33.7°
Approach	15 Oct 2023	23.1	1.011 AU	0.098 AU	38.19 LD	14,681,077 km	19h41m	+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.

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.