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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 111 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1277283571448013 | 2.6912e-08 | |
| a | 2.365084760580667 | 3.0701e-09 | au |
| q | 2.062996369603493 | 6.3251e-08 | au |
| i | 2.096021873447357 | 3.0165e-06 | deg |
| node | 307.4686494458585 | 8.0133e-05 | deg |
| peri | 87.31845739720562 | 8.1162e-05 | deg |
| M | 137.5647326865075 | 1.3089e-05 | deg |
| tp | 2458492.839820171768
(2019-Jan-09.33982017) | 4.7996e-05 | TDB |
| period | 1328.521207209735
3.64 | 2.5868e-06
7.082e-09 | d
yr |
| n | .2709779851810573 | 5.2763e-10 | deg/d |
| Q | 2.667173151557842 | 3.4622e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.5 |
|
n/a |
MPO502153 |
|
| diameter |
diameter |
92.787 |
km |
2.040 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
13.686 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Bailey, S.J. (1913) Ann. Harvard Coll. Obs. 72, 165-189.]
[Rigollet, R. (1950) C. R. 230, 2077-2078.]
[Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.]
[Harris, A.W.; Young, J.W. (1980) Icarus 43, 20-32.]
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Durech, J. (2006) IAU 2006, poster paper.]
[Durech, J.; Kaasalainen, M.; Warner, B.D.; Fauerbach, M.; et al. (2009) Astron. Astrophys. 493, 291-297.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Husar, D.; Kretlow, M. (2015) Minor Planet Bull. 42, 157-158.] |
| geometric albedo |
albedo |
0.192 |
|
0.027 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.873 |
|
0.022 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=.70, mean=9.32, max.=24.88) deg. |
| U-B |
UB |
0.459 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=.70, mean=9.32, max.=24.88) deg. |
| Tholen spectral type |
spec_T |
S |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
| SMASSII spectral type |
spec_B |
Sl |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) |
|
| 30 Urania (A854 OA) Discovered 1854-Jul-22 by Hind, J. R. at London |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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