1863 Antinous (1948 EA) |
Classification: Apollo [NEO] SPK-ID: 2001863 |
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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 200 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .6063724027515934 | 2.6662e-08 | |
a | 2.258645821289091 | 1.5844e-09 | au |
q | .8890653276691789 | 6.0184e-08 | au |
i | 18.39925248724597 | 5.4722e-06 | deg |
node | 346.4341231003507 | 1.14e-05 | deg |
peri | 268.0826997811582 | 1.1693e-05 | deg |
M | 127.8864631908113 | 3.3516e-06 | deg |
tp | 2458760.053965189088 (2019-Oct-03.55396519) | 1.1353e-05 | TDB |
period | 1239.854231447077 3.39 | 1.3046e-06 3.572e-09 | d yr |
n | .2903567136112699 | 3.0552e-10 | deg/d |
Q | 3.628226314909003 | 2.5452e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
15.40 |
|
n/a |
E2021B10 |
|
diameter |
diameter |
2.1 |
km |
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
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rotation period |
rot_per |
7.453 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm] [Warner, B.D. (2016) Minor Planet Bull. 43, 240-250.] [Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.] [Warner, B.D.; Pravec, P.; Kusnirak, P.; Benishek, V.; Ferrero, A. (2017) Minor Planet Bull. 44, 206-212.] |
geometric albedo |
albedo |
0.24 |
|
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
|
B-V |
BV |
0.763 |
|
0.019 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=21.71, mean=22.67, max.=23.62) deg. |
U-B |
UB |
0.359 |
|
0.042 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=2; phase (min.=21.71, mean=22.67, max.=23.62) deg. |
Tholen spectral type |
spec_T |
SU |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Sq |
|
n/a |
Binzel et al. (2001) Icarus 151, 139-149 |
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1863 Antinous (1948 EA) Discovered 1948-Mar-07 by Wirtanen, C. A. at Mount Hamilton |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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