Schedule Observations Schedule Spectroscopic Observations
Type Asteroid (Outer Main-Belt)
Status Actively Following
Source Trojan
Check Spectroscopic Feasibility Create LC Plot
Recent Blocks Scheduled
Measurements
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Plot Visibility
Last Update: 2021-Oct-05 06:30
Orbital Elements
MPC Minor Planet
Epoch of elements (MJD)
59467.0 Sept. 10, 2021
Orbital inclination in deg 7.18502
Longitude of Ascending Node (deg) 88.17481
Arg of perihelion (deg) 206.01639
Eccentricity 0.1557877
Mean distance (AU) 3.9890551
Mean Anomaly (deg) 57.96639
Absolute Magnitude (H) 9.32
Slope Parameter (G) 0.15
Albedo (average) 0.17
Albedo (range) 0.01 - 0.60
Diameter in meters (average) 48580
Diameter in meters
(range)		 23467 - 181771
Physical Parameters
Diameter based on assumed albedo of 0.048 for C-type

J.G. Williams (E-mail September 1990)
97.0 km
Albedo urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)
0.058 +/- 0.012
Rotation Period REFERENCE LIST:[Gonano, M.; Di Martino, M.; Mottola, S.; Neukum, G. (1991) Adv. Space Res. 11, no. 12, 197-200.], [Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.], [Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html], [Warner, B.D., Stephens, R.D. (2018) Minor Planet Bull. 45, 390-393.], [Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]

LCDB (Rev. 2020-October); Warner et al., 2009
14.849 h
Absolute Magnitude E2021B10
9.27
B-V #obs=3; phase (min.=7.65, mean=13.11, max.=16.19) deg.

EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2
0.682 +/- 0.042
U-B #obs=2; phase (min.=7.65, mean=11.92, max.=16.19) deg.

EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2
0.216 +/- 0.018
Follow-up Details
Number of observations 2145
Arc length (days) 7670.00
Time since last observation (days) 1557.27
Spectroscopy Details (Plots)
SMASS Spectra NIR
LCO Spectrum 2020-07-14 (COJ)
LCO Spectrum 2020-07-18 (COJ)
LCO Spectrum 2020-08-10 (COJ)
LCO Spectrum 2020-08-10 (COJ)
LCO Spectrum 2020-08-12 (COJ)
LCO Spectrum 2020-08-13 (COJ)
LCO Spectrum 2020-09-14 (COJ)
LCO Spectrum 2020-09-14 (COJ)
Tholen Taxonomic Type 7 color indices were used. Used groundbased radiometric albedo.

Neese, Asteroid Taxonomy V6.0, (2010).
P
S3OS2_TH Taxonomic Type

Neese, Asteroid Taxonomy V6.0, (2010).
X
S3OS2_BB Taxonomic Type

Neese, Asteroid Taxonomy V6.0, (2010).
Xe