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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 34 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .311482351668399 | 1.6398e-08 | |
| a | 2.341151971118691 | 5.4519e-09 | au |
| q | 1.611924449541534 | 3.8288e-08 | au |
| i | 20.60699143256841 | 7.3549e-07 | deg |
| node | 321.9738773360976 | 3.7794e-06 | deg |
| peri | 89.01137766037861 | 4.2372e-06 | deg |
| M | 18.21918718289477 | 3.3772e-06 | deg |
| tp | 2459134.283025627057
(2020-Oct-11.78302563) | 1.2215e-05 | TDB |
| period | 1308.406930285026
3.58 | 4.5703e-06
1.251e-08 | d
yr |
| n | .2751437581590743 | 9.6109e-10 | deg/d |
| Q | 3.070379492695849 | 7.15e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
13.53 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
26.37 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Warner, B.D. (2003) Minor Planet Bull. 30, 33-35.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.] |
| SMASSII spectral type |
spec_B |
S |
|
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) |
|
| 4995 Griffin | Discovered 1984 Aug. 28 by S. Swanson at Palomar. |
| Griffin Swanson (b. 1997) is the son of the discoverer. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20071124/MPCPages.arc | Last Updated: 2007-11-26 |
|
Alternate Designations
| 1984 QR = 1971 BV = 1989 CY |
|
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