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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 105 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .07232456785200954 | 2.9979e-08 | |
| a | 2.576120048211813 | 5.3268e-09 | au |
| q | 2.389803278989996 | 7.7608e-08 | au |
| i | 11.26674232056468 | 3.3699e-06 | deg |
| node | 242.1523035205484 | 1.6252e-05 | deg |
| peri | 353.3485929211384 | 2.81e-05 | deg |
| M | 234.5242322216689 | 2.346e-05 | deg |
| tp | 2459526.886732076549
(2021-Nov-08.38673208) | 9.8771e-05 | TDB |
| period | 1510.245578909962
4.13 | 4.6842e-06
1.282e-08 | d
yr |
| n | .2383718284147102 | 7.3934e-10 | deg/d |
| Q | 2.76243681743363 | 5.712e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
7.6 |
|
n/a |
MPO502156 |
IRAS observations used: 12 |
| magnitude slope |
G |
0.29 |
|
n/a |
PDS3 (MPC 17258) |
Fit |
| diameter |
diameter |
171.012 |
km |
1.155 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
9.022 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Di Martino, M.; Cacciatori, S. (1984) Astron. Astrophys. 130, 206-207.]
[Zappala, V.; Di Martino, M.; Hanslmeier, A.; Schober, H.J. (1985) Astron. Astrophys. 147, 1, 35-38.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planet. Space Sci. 53, 1147-1165.]
[Behrend, R. (2008) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Warner, B.D.; Durech, J.; Faurerbach, M.; Marks, S. (2008) Minor Planet Bull. 35, 167-171.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
[Alton, K.B. (2015) Minor Planet Bull. 42, 146-148.]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
[Hanus, J.; Viikinkoski, M.; Marchis, F.; Durech, J.; et al (2017) Astron. Astrophys. 601, A114.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.054 |
|
0.005 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.719 |
|
0.018 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=7; phase (min.=4.66, mean=12.04, max.=19.38) deg. |
| U-B |
UB |
0.323 |
|
0.015 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=5; phase (min.=4.66, mean=11.79, max.=19.38) 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 |
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) |
|
| 409 Aspasia (A895 XC) Discovered 1895-Dec-09 by Charlois, A. at Nice |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A895 XC = 1948 RT1 = 1949 CB = A904 AB |
|
|
