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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 55 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .285048922257171 | 1.9532e-08 | |
| a | 2.737738985819345 | 7.9881e-09 | au |
| q | 1.9573494384901 | 5.4407e-08 | au |
| i | 15.86921120764 | 3.7005e-07 | deg |
| node | 115.4410829655272 | 3.5297e-06 | deg |
| peri | 286.719014540087 | 5.1889e-06 | deg |
| M | 271.5539206862461 | 7.9189e-06 | deg |
| tp | 2459803.001893390052
(2022-Aug-11.50189339) | 3.7761e-05 | TDB |
| period | 1654.575112383326
4.53 | 7.2415e-06
1.983e-08 | d
yr |
| n | .2175785174729478 | 9.5227e-10 | deg/d |
| Q | 3.518128533148589 | 1.0265e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.12 |
|
n/a |
E2021B10 |
IRAS observations used: 11 |
| diameter |
diameter |
100.765 |
km |
1.608 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
12.160 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Schober, H.J.; Erikson, A.; Hahn, G.; Lagerkvist, C.-I. (1993) Astron. Astrophys. Suppl. Ser. 101, 499-505.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Buchheim, R.K. (2005) Minor Planet Bull. 32, 79-80.]
[Behrend, R. (2010) 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.] |
| geometric albedo |
albedo |
0.045 |
|
0.006 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.656 |
|
0.014 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=15.21, mean=22.50, max.=28.53) deg. |
| U-B |
UB |
0.230 |
|
0.046 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=3; phase (min.=15.21, mean=22.50, max.=28.53) deg. |
| Tholen spectral type |
spec_T |
F |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
B |
|
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) |
|
| 1021 Flammario (A924 EW) Discovered 1924-Mar-11 by Wolf, M. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A924 EW = 1977 UM = A910 CE |
|
|
