(415029) 2011 UL21
ephemeris	date	magn	radius	delta (AU)	delta (LD)	delta (km)	ra	dec	elong	phase
Approach	27 Jun 2024	11.9	1.025 AU	0.044 AU	17.27 LD	6,639,352 km	12h26m	-25°59'	99.8°	77.7°
Brightest	29 Jun 2024	11.7	1.037 AU	0.048 AU	18.73 LD	7,201,881 km	13h53m	-15°24'	114.3°	63.3°
Today	2 Dec 2024	21.0	2.401 AU	2.667 AU	1037.85 LD	399,017,152 km	20h21m	+08°54'	63.8°	21.6°

Based on its absolute magnitude (Hₒ) of 15.9 and an albedo between 0.25 and 0.05, the estimated diameter of (415029) 2011 UL21 is 2 - 4 km.

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.