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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 123 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .06777107897260178 | 1.8542e-08 | |
a | 2.364959451162968 | 2.4059e-09 | au |
q | 2.204683597431202 | 4.4176e-08 | au |
i | 9.978931753318767 | 2.0576e-06 | deg |
node | 175.965177236859 | 1.585e-05 | deg |
peri | 2.252286479828747 | 2.6976e-05 | deg |
M | 204.783097391602 | 2.1804e-05 | deg |
tp | 2459573.257107443214 (2021-Dec-24.75710744) | 8.0491e-05 | TDB |
period | 1328.415624938525 3.64 | 2.0271e-06 5.55e-09 | d yr |
n | .2709995224699798 | 4.1353e-10 | deg/d |
Q | 2.525235304894735 | 2.5689e-09 | au |
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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 |
7.6 |
|
n/a |
MPO492748 |
IRAS observations used: 18 |
magnitude slope |
G |
0.08 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
138.159 |
km |
0.966 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
rotation period |
rot_per |
7.783 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Chang, Y.C.; Chang, C.-s. (1963) Acta Astron. Sin. 11, 139-149.] [Wamsteker, W.; Sather, R.E. (1974) Astron. J. 79, 1465-1470.] [Gammelgaard, P.; Kristensen, L.K. (1983) Messenger 32, 29-30.] [Kristensen, L.K.; Gammelgaard, P. (1985) Astron. Nachr. 306, 241-249.] [Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.] [Gammelgaard, P.; Kristensen, L.K. (1991) Astron. Astrophys. 244, 544-552.] [Kristensen, L.K. (1991) Astron. Nachr. 312, 209-220.] [Kristensen, L.K. (1993) Astron. Nachr. 314, 381-390.] [Kristensen, L.K.; Gammelgaard, P. (1993) Astron. Astrophys. 272, 345-354.] [Kristensen, L.K.; Gammelgaard, P. (1997) Astron. Astrophys. 322, 679-686.] [Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planet. Space Sci. 53, 1147-1165.] [Chiorny, V.G.; Shevchenko, V.G.; Krugly, Yu.N.; Velichko, F.P.; Gaftonyuk, N.M. (2007) Planet. Space Sci. 55, 986-997.] [Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Garlitz, J. (2008) http://eoni.com/~garlitzj/Period.htm] [Behrend, R. (2009) 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] [Behrend, R. (2012) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2014) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.] [Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.] |
geometric albedo |
albedo |
0.100 |
|
0.025 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
B-V |
BV |
0.789 |
|
0.012 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=8; phase (min.=9.97, mean=15.82, max.=22.24) deg. |
U-B |
UB |
0.482 |
|
0.011 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=6; phase (min.=9.97, mean=13.87, max.=16.71) deg. |
Tholen spectral type |
spec_T |
CU |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Ch |
|
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) |
|
51 Nemausa (A858 BA) Discovered 1858-Jan-22 by Laurent at Nimes |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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Alternate Designations
A858 BA = 1949 HC1 = 1954 QX |
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