2015 TQ21
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Approach7 Oct 202123.50.993 AU0.030 AU11.62 LD4,468,467 km18h02m-28°51'76.4°102.0°
Brightest9 Oct 202122.61.013 AU0.037 AU14.43 LD5,546,350 km20h39m-20°29'110.8°67.2°
Today23 Oct 202125.41.150 AU0.189 AU73.35 LD28,201,442 km23h26m-00°26'142.4°31.8°

Based on its absolute magnitude (Hₒ) of 27.4 and an albedo between 0.25 and 0.05, the estimated diameter of 2015 TQ21 is 9 - 20 m.

2015 TQ21- 2021-10-23
astro.vanbuitenen.nl


 
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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.