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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .149036845696811 | 1.3992e-08 | |
| a | 2.342024694471069 | 5.6044e-09 | au |
| q | 1.992976721463063 | 3.3379e-08 | au |
| i | 5.043818742381444 | 4.6646e-07 | deg |
| node | 338.1144745519483 | 5.4301e-06 | deg |
| peri | 24.48666012167529 | 7.5667e-06 | deg |
| M | 20.53774234903072 | 5.2471e-06 | deg |
| tp | 2459125.814579194335
(2020-Oct-03.31457919) | 1.9072e-05 | TDB |
| period | 1309.138610910095
3.58 | 4.6991e-06
1.287e-08 | d
yr |
| n | .2749899796704743 | 9.8707e-10 | deg/d |
| Q | 2.691072667479074 | 6.4397e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
12.45 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
4.430 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Stephens, R.D. (2018) Minor Planet Bull. 45, 299-301.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 2254 Requiem | Discovered 1977 Aug. 19 by N. S. Chernykh at the Crimean Astrophysical Observatory. |
| The name is dedicated to the memory of the discoverer's mother, Melaniya Petrovna Chernykh, who died on 1977 Aug. 19, the day that this minor planet was discovered. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC 5524 | Last Updated: 2006-03-21 |
|
Alternate Designations
| 1977 QJ1 = 1941 QC = 1959 RG = 1959 RR = 1966 PF = 1972 GS = 1976 JQ = 1977 TS5 = A916 UB |
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