2021 TT4
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Brightest11 Oct 202120.51.010 AU0.015 AU5.80 LD2,229,516 km03h27m-01°41'143.5°36.0°
Approach14 Oct 202120.81.004 AU0.013 AU5.17 LD1,989,055 km04h46m-20°23'121.6°57.8°
Today22 Oct 202122.80.993 AU0.018 AU7.06 LD2,713,236 km07h43m-42°55'83.1°95.9°

Based on its absolute magnitude (Hₒ) of 28.1 and an albedo between 0.25 and 0.05, the estimated diameter of 2021 TT4 is 6 - 14 m.

2021 TT4- 2021-10-22

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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.