[ hide orbit diagram ]
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 50 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1709289306949478 | 3.1207e-08 | |
| a | 3.182231016131358 | 9.765e-09 | au |
| q | 2.638295671319728 | 9.9647e-08 | au |
| i | 22.6697680383897 | 3.4163e-06 | deg |
| node | 200.491503704518 | 9.899e-06 | deg |
| peri | 188.5553145447109 | 1.4704e-05 | deg |
| M | 47.82971019084034 | 1.0697e-05 | deg |
| tp | 2458725.019265641030
(2019-Aug-29.51926564) | 6.1392e-05 | TDB |
| period | 2073.461536219411
5.68 | 9.544e-06
2.613e-08 | d
yr |
| n | .1736227046952586 | 7.9917e-10 | deg/d |
| Q | 3.726166360942988 | 1.1434e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
8.2 |
|
n/a |
MPO421626 |
|
| diameter |
diameter |
106.976 |
km |
1.080 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
11.2877 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Hansen, A.T.; Arentoft, T. (1997) Minor Planet Bull. 24, 14.]
[Behrend, R. (2006) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Alton, K.B. (2008) Minor Planet Bull. 35, 53.]
[Krajewski, R. (2008) Minor Planet Bull. 35, 77.]
[Warner, B.D. (2008) Minor Planet Bull. 35, 56-60.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Shevchenko, V.G.; Belksaya, I.N.; Muinon, K.; Penttila, A.; et al. (2016) Plan. Space Sci. 123, 101-116.]
[Oey, J.; Williams, H.; Groom, R. (2017) Minor Planet Bull. 44, 200-204.]
[Benishek, V. (2018) Minor Planet Bull. 45, 82-91.]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
[Wang, Y.-B.; Xu, Y.; Fan, C.-B.; Liu, C.-Z. (2018). Astron. Nach. 339, 457-464.] |
| geometric albedo |
albedo |
0.065 |
|
0.023 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
| Tholen spectral type |
spec_T |
G |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
based on a medium resolution spectrum published by Chapman and Gaffey (1979) |
| 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) |
|
| 176 Iduna (A877 TB) Discovered 1877-Oct-14 by Peters, C. H. F. at Clinton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ show close-approach data ]
|
