1566 Icarus (1949 MA) |
Classification: Apollo [NEO, PHA] SPK-ID: 2001566 |
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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 119 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .8270213517584103 | 3.1066e-08 | |
a | 1.078168924356222 | 2.7933e-09 | au |
q | .186500203111228 | 3.3477e-08 | au |
i | 22.82210584381254 | 1.0278e-05 | deg |
node | 87.9975459324354 | 3.6595e-06 | deg |
peri | 31.39333873322229 | 5.932e-06 | deg |
M | 192.0831791807477 | 6.1861e-06 | deg |
tp | 2459191.230586607055 (2020-Dec-07.73058661) | 7.7365e-06 | TDB |
period | 408.9108574324997 1.12 | 1.5891e-06 4.351e-09 | d yr |
n | .8803874816638403 | 3.4213e-09 | deg/d |
Q | 1.969837645601215 | 5.1034e-09 | au |
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Additional Model Parameters
Parameter | Value | Uncertainty (1-sigma) |
A2 [EST] | -3.052890990344277E-15 | 6.964E-16 |
ALN [SET] | 1. | n/a |
NK [SET] | 0. | n/a |
NM [SET] | 2. | n/a |
R0 [SET] | 1. | n/a |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
absolute magnitude |
H |
16.9 |
|
n/a |
PDS3 (MPC 28106) |
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diameter |
diameter |
1.0 |
km |
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
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rotation period |
rot_per |
2.2726 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Miner, E.; Young, J. (1969) Icarus 10, 436-440.] [Gehrels, T.; Roemer, E.; Taylor, R.C.; Zellner, B.H. (1970) Astron. J. 75, 186-195.] [De Angelis, G. (1995) Planet. Space Sci. 43, 649-682.] [Behrend, R. (2015) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.] [Oey, J.; Williams, H.; Groom, R. (2017) Minor Planet Bull. 44, 200-204.] |
geometric albedo |
albedo |
0.51 |
|
n/a |
Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543 |
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B-V |
BV |
0.774 |
|
0.035 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=13; phase (min.=38.56, mean=70.86, max.=102.48) deg. |
U-B |
UB |
0.520 |
|
0.067 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=9; phase (min.=38.56, mean=68.16, max.=100.85) deg. |
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1566 Icarus (1949 MA) Discovered 1949-Jun-27 by Baade, W. at Palomar |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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