Schedule Observations Schedule Spectroscopic Observations
Type NEO (Apollo) [PHA]
Status Actively Following
Characterization Target
Source NASA
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
  • No blocks have been scheduled
Measurements
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Last Update: 2021-Feb-27 20:01
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59270.0 Feb. 25, 2021
Orbital inclination in deg 3.40768
Longitude of Ascending Node (deg) 73.20234
Arg of perihelion (deg) 319.32035
Eccentricity 0.3836409
Mean distance (AU) 1.6444571
Mean Anomaly (deg) 77.75787
Absolute Magnitude (H) 18.27
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 721
Diameter in meters
(range)		 381 - 2948
Physical Parameters
Rotation Period REFERENCE LIST:[Pravec, P.; et al. (2003) IAUC 8244. (65803)], [Kitazato, K.; Abe, M.; Mito, H. (2005) Asia-Oceana Geophys. Soc. abstract 58-PS-A1183.], [Pravec, P.; et al. (2006) Icarus 181, 63-93.]

LCDB (Rev. 2020-October); Warner et al., 2009
2.2593 h
Density uncertainty is published as "30%"

Richardson et al., 2016, "Dynamical and Physical Properties of 65803 Didymos", LPSC Abstract (submitted)
2.1 g/cm^3 +/- 0.6
Diameter uncertainty is published as "10%"

Richardson et al., 2016, "Dynamical and Physical Properties of 65803 Didymos", LPSC Abstract (submitted)
0.78 km +/- 0.08
Absolute Magnitude MPO412594
18.0
Follow-up Details
Number of observations 829
Arc length (days) 7305.00
Time since last observation (days) 2087.29
Spectroscopy Details (Plots)
SMASS Spectra Vis
MANOS Target Vis
Known Taxonomies None