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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 120 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .1479927772388983 | 3.311e-08 | |
a | 2.424859144674044 | 3.7473e-09 | au |
q | 2.065997505440593 | 8.0037e-08 | au |
i | 3.710079304891163 | 3.6674e-06 | deg |
node | 131.4947791790636 | 5.1134e-05 | deg |
peri | 343.8644776040374 | 5.2328e-05 | deg |
M | 186.5544315519276 | 1.1984e-05 | deg |
tp | 2459664.990702464440 (2022-Mar-26.49070246) | 4.6378e-05 | TDB |
period | 1379.203026215207 3.78 | 3.197e-06 8.753e-09 | d yr |
n | .261020308944585 | 6.0505e-10 | deg/d |
Q | 2.783720783907496 | 4.3018e-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 |
6.9 |
|
n/a |
MPO492748 |
IRAS observations used: 18 |
magnitude slope |
G |
0.46 |
|
n/a |
PDS3 (MPC 17257) |
Fit |
diameter |
diameter |
70.64 |
km |
4.0 |
IRAS-A-FPA-3-RDR-IMPS-V6.0 |
IRAS observations used: 18 |
rotation period |
rot_per |
6.422 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List: [Bianchi, E.; Padova, E. (1920) Mem. Soc. Astron. Ital. 1, 56-65.] [Padova, E. (1921) Mem. Soc. Astron. Ital. 2, 82.] [Groeneveld, I.; Kuiper, G.P. (1954) Astrophys. J. 120, 529-546.] [Shatzel, A.V. (1954) Astrophys. J. 120, 547-550.] [Cailliate, C. (1956) Publ. Observ. Lyon 3, fasc. 28.] [Chang, Y.C.; Chang, C.-s. (1962) Acta Astron. Sin. 10, 101-111.] [Gehrels, T.; Owings, D. (1962) Astrophys. J. 135, 906-924.] [Yang, X.-y.; Zhang, Y.-y.; Li, X.-q. (1965) Acta Astron. Sin. 13, 66-74.] [Zappala, V.; van Houten-Groeneveld, I. (1979) Icarus 40, 289-296.] [Birch, P.V.; Tedesco, E.F.; Taylor, R.C.; Binzel, R.P.; et al. (1983) Icarus 54, 1-12.] [Harris, A.W.; Young, J.W. (1983) Icarus 54, 59-109.] [Magnusson, P. (1983) in Asteroids, Comets, Meteors. C.-I. Lagerkvist, H. Rickman, eds. Uppsala, pp. 77-85.] [Taylor, R.C.; Tedesco, E.F. (1983) Icarus 54, 13-22.] [Magnusson, P. (1986) Icarus 68, 1-39.] [Di Martino, M.; Zappala, V.; De Sanctis, G.; Cacciatori, S. (1987) Icarus 69, 338-353.] [Lagerkvist, C.-I.; Williams, I.P. (1987) Astron. Astrophys. Suppl. Ser. 68, 295-315.] [Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1988) Astron. Astrophys. Suppl. Ser. 73, 395-405.] [Harris, A.W.; Young, J.W.; Contreiras, L.; Dockweiler, T.; et al. (1989) Icarus 81, 365-374.] [Lagerkvist, C.I.; Magnusson, P.; Williams, I.P.; Buontempo, M.E.; et al. (1989) Astron. Astrophys. Suppl. Ser. 78, 519-532.] [De Angelis, G. (1993) Planet. Space Sci. 41, 285-290.] [Kaasalainen, M.; Torppa, J.; Piironen, J. (2002) Astron. Astrophys. 383, L19-L22.] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Rosenbush, V.K.; Shevchenko, V.G.; Kiselev, N.N.; Sergeev, A.V.; et al. (2009) Icarus 201, 655-665.] [Shevchenko, V.G.; Velichko, F.P.; Checha, V.A.; Krugly, Y.N. (2014) Minor Planet Bull. 41, 195-198.] [Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Cellino, A.; Hestroffer, D.; Lu, X.-P.; Muinonen, K.; Tanga, P. (2019) Astron. Astrophys. 631, A67.] |
geometric albedo |
albedo |
0.482 |
|
0.031 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M) |
|
B-V |
BV |
0.703 |
|
0.020 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=19; phase (min.=4.95, mean=15.61, max.=27.78) deg. |
U-B |
UB |
0.245 |
|
0.030 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=18; phase (min.=5.27, mean=17.16, max.=27.78) deg. |
Tholen spectral type |
spec_T |
E |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices; used ground-based radiometric albedo |
SMASSII spectral type |
spec_B |
Xc |
|
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) |
|
44 Nysa (A857 KA) Discovered 1857-May-27 by Goldschmidt, H. at Paris |
Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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