Schedule Observations Schedule Spectroscopic Observations
NameP21AsE4 → 2022 UD9
Type NEO (Apollo) [PHA]
Status Actively Following
Characterization Target
Source Goldstone
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
Measurements
Show Measurements
Plot Visibility
Last Update: 2024-Nov-27 07:09
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
60117.0 June 22, 2023
Orbital inclination in deg 9.0264
Longitude of Ascending Node (deg) 93.47545
Arg of perihelion (deg) 47.72571
Eccentricity 0.4025209
Mean distance (AU) 1.4597414
Mean Anomaly (deg) 79.874
Absolute Magnitude (H) 21.88
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 149
Diameter in meters
(range)		 72 - 559
Physical Parameters
Absolute Magnitude autocmod 3.0e

MPO750185
21.81 +/- 0.25842
Diameter Initial Diameter Guess using H=21.88 and albedo=0.14 (0.01 to 0.5)

MPC Default
149.44 m +410.0 / -70.0
Rotation Period [Result based on less than full coverage, so that the period may be wrong by 30 percent or so.] REFERENCE LIST:[Pravec, P.; Wolf, M.; Sarounova, L. (2022) http://www.asu.cas.cz/~ppravec/neo.htm]

LCDB (Rev. 2023-February); Warner et al., 2009
12.55 h
Follow-up Details
NEOCP digest2 score 100
Number of observations 166
Arc length (days) 245.00
Time since last observation (days) 2.81
Spectroscopy Details
Known Taxonomies None