2017 TH1
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Approach15 Oct 202119.41.033 AU0.038 AU14.97 LD5,756,706 km00h33m-08°10'159.6°19.7°
Brightest15 Oct 202119.41.033 AU0.039 AU15.01 LD5,769,467 km00h48m-09°15'160.1°19.2°
Today23 Oct 202120.71.038 AU0.055 AU21.36 LD8,210,536 km03h33m-17°24'141.4°36.7°

Based on its absolute magnitude (Hₒ) of 25.5 and an albedo between 0.25 and 0.05, the estimated diameter of 2017 TH1 is 20 - 50 m.

2017 TH1- 2021-10-23

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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.