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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 87 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1233516107598807 | 3.0635e-08 | |
| a | 2.983795935109228 | 9.2369e-09 | au |
| q | 2.61573990033472 | 9.1908e-08 | au |
| i | 2.201099800609181 | 3.7542e-06 | deg |
| node | 206.1447315766757 | 8.8487e-05 | deg |
| peri | 153.4893623574514 | 8.984e-05 | deg |
| M | 43.74865151930003 | 1.6225e-05 | deg |
| tp | 2458771.721992007638
(2019-Oct-15.22199201) | 8.4511e-05 | TDB |
| period | 1882.574205536745
5.15 | 8.7418e-06
2.393e-08 | d
yr |
| n | .1912275218375042 | 8.8797e-10 | deg/d |
| Q | 3.351851969883735 | 1.0376e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.5 |
|
n/a |
MPO502154 |
IRAS observations used: 19 |
| diameter |
diameter |
119.128 |
km |
1.869 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
| rotation period |
rot_per |
8.1347 |
h |
n/a |
LCDB (Rev. 2019-August); Warner et al., 2009 |
Published Reference List:
[Di Martino, M. (1984) Icarus 60, 541-546.]
[Armstrong, J.C.; Nellermoe, B.L.; Reitzler, L.E. (1996) I.A.P.P.P. Comm. 63, 59-68.]
[Blanco, C.; Di Martino, M.; De Sanctis, G.; Riccioli, D. (1996) Planet. Space Sci. 44, 93-106.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Pilcher, F. (2011) Minor Planet Bull. 38, 156-158.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] |
| geometric albedo |
albedo |
0.052 |
|
0.007 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.706 |
|
0.065 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=2.26, mean=6.69, max.=9.49) deg. |
| U-B |
UB |
0.275 |
|
0.038 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=2.26, mean=6.69, max.=9.49) deg. |
| Tholen spectral type |
spec_T |
CX |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices |
| SMASSII spectral type |
spec_B |
Cb |
|
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) |
|
| 150 Nuwa (A875 UA) Discovered 1875-Oct-18 by Watson, J. C. at Ann Arbor |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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Alternate Designations
| A875 UA = 2002 JR70 = A908 AL |
|
|
