2001 YD1
ephemeris date magn radius delta (AU) delta (LD) delta (km) ra dec elong phase
Today23 Oct 202126.20.797 AU0.328 AU127.76 LD49,117,765 km16h30m-38°28'44.9°118.2°
Approach5 Dec 202121.80.977 AU0.062 AU24.07 LD9,253,106 km11h07m-14°08'80.0°96.4°
Brightest13 Dec 202120.91.030 AU0.079 AU30.64 LD11,780,000 km09h17m+13°46'123.3°53.1°

Based on its absolute magnitude (Hₒ) of 24.4 and an albedo between 0.25 and 0.05, the estimated diameter of 2001 YD1 is 35 - 80 m.

2001 YD1- 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.