Schedule Observations Schedule Spectroscopic Observations
Type NEO (Apollo) [PHA]
Status Not Following
Source Goldstone
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Recent Blocks Scheduled
Measurements
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Last Update: 2021-Jun-10 06:14
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59367.0 June 2, 2021
Orbital inclination in deg 9.69079
Longitude of Ascending Node (deg) 42.53862
Arg of perihelion (deg) 168.85305
Eccentricity 0.515143
Mean distance (AU) 2.0177848
Mean Anomaly (deg) 13.31647
Absolute Magnitude (H) 20.23
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 319
Diameter in meters
(range)		 154 - 1195
Physical Parameters
Absolute Magnitude autocmod 2.8

E2021-HE4
20.21 +/- 0.28744
Diameter Initial Diameter Guess using H=20.23 and albedo=0.14 (0.01 to 0.5)

MPC Default
319.49 m +876.0 / -150.0
Follow-up Details
Number of observations 371
Arc length (days) 2922.00
Time since last observation (days) 1.80
Spectroscopy Details
Known Taxonomies None