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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 34 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3836635998248111 | 3.7888e-08 | |
| a | 2.604523566623736 | 1.1557e-08 | au |
| q | 1.605262679224317 | 9.5329e-08 | au |
| i | 27.79664918770369 | 5.4244e-06 | deg |
| node | 219.3571249122836 | 8.9055e-06 | deg |
| peri | 110.2485384815592 | 1.2186e-05 | deg |
| M | 175.8119091180305 | 1.1737e-05 | deg |
| tp | 2458250.715163389529
(2018-May-12.21516339) | 4.6355e-05 | TDB |
| period | 1535.291565479551
4.20 | 1.0219e-05
2.798e-08 | d
yr |
| n | .2344831484093729 | 1.5607e-09 | deg/d |
| Q | 3.603784454023155 | 1.5991e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Orbital Elements at Epoch 2457067.5 (2015-Feb-14.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3855006692907395 | 3.8118e-08 | |
| q | 1.599649456118913 | 9.599e-08 | au |
| tp | 2456714.389672623394
(2014-Feb-25.88967262) | 3.8952e-05 | TDB |
| node | 219.5344429764203 | 8.9248e-06 | deg |
| peri | 109.9868601147954 | 1.2106e-05 | deg |
| i | 27.7548831622752 | 5.4243e-06 | deg |
|
| | Orbit Determination Parameters
Additional Information
|
Orbit Covariance (6×6)
|
| |
e |
q |
tp |
node |
peri |
i |
| e |
1.452944813714328E-15 |
-3.651314036571409E-15 |
6.491701806489756E-13 |
1.402554748724443E-15 |
1.130574056050151E-13 |
-2.183019876194892E-16 |
| q |
-3.651314036571409E-15 |
9.214004919178084E-15 |
-1.522991652812086E-12 |
-2.179191875872179E-15 |
-2.61268515429903E-13 |
8.129185765491478E-16 |
| tp |
6.491701806489756E-13 |
-1.522991652812086E-12 |
1.517296334720187E-9 |
3.31375629705275E-12 |
3.325581427787475E-10 |
1.260906488899696E-12 |
| node |
1.402554748724443E-15 |
-2.179191875872179E-15 |
3.31375629705275E-12 |
7.965280948972823E-11 |
-6.939251495378244E-11 |
5.405580717054592E-12 |
| peri |
1.130574056050151E-13 |
-2.61268515429903E-13 |
3.325581427787475E-10 |
-6.939251495378244E-11 |
1.46550114071058E-10 |
-4.865135339728636E-12 |
| i |
-2.183019876194892E-16 |
8.129185765491478E-16 |
1.260906488899696E-12 |
5.405580717054592E-12 |
-4.865135339728636E-12 |
2.942284537507881E-11 |
|
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.1 |
|
n/a |
MPO502196 |
|
| rotation period |
rot_per |
6.864 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Sheridan, E.E. (2002) Minor Planet Bull. 29, 32-33.]
[Stephens, R.D. (2002) Minor Planet Bull. 29, 34.]
[Behrend, R. (2009) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| SMASSII spectral type |
spec_B |
S |
|
n/a |
Binzel et al. (2004) Icarus 170, 259-294 |
|
|
| 4451 Grieve (1988 JJ) Discovered 1988-May-09 by Shoemaker, C. S. at Palomar |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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Alternate Designations
| 1988 JJ = 1971 GF = 1980 VE1 |
|
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