[ 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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1344058387152748 | 3.6463e-08 | |
| a | 2.435439962630485 | 6.4503e-09 | au |
| q | 2.108102611812437 | 8.8468e-08 | au |
| i | 7.736568549393538 | 4.2804e-06 | deg |
| node | 359.946083801825 | 2.5163e-05 | deg |
| peri | 336.1850750457477 | 2.9553e-05 | deg |
| M | 63.42985429315048 | 1.5533e-05 | deg |
| tp | 2458955.900377813759
(2020-Apr-16.40037781) | 5.9915e-05 | TDB |
| period | 1388.240048291513
3.80 | 5.5152e-06
1.51e-08 | d
yr |
| n | .2593211458227608 | 1.0302e-09 | deg/d |
| Q | 2.762777313448533 | 7.3173e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
10.97 |
|
n/a |
E2021B10 |
|
| diameter |
diameter |
11.385 |
km |
0.157 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
5.487 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Warner, B.D. (2002) Minor Planet Bull. 29, 27-28.]
[Bel'skaya, I.N.; Shevchenko, V.G.; Kiselev, N.; Krugly, Yu.N.; et al. (2003) Icarus 166, 276-284.]
[Almeida, R.; Angeli, C.A.; Duffard, R.; Lazzaro, D. (2004) Astron. Astrophys. 415, 403-406.]
[Li, B.; Zhao, H.; Yao, J. (2011) Minor Planet Bull. 38, 179-180.]
[Warner, B.D. (2011) Minor Planet Bull. 38, 52-54.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
| geometric albedo |
albedo |
0.419 |
|
0.048 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| B-V |
BV |
0.683 |
|
0.033 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=1.51 deg. |
| U-B |
UB |
0.237 |
|
0.035 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=1; phase=1.51 deg. |
| Tholen spectral type |
spec_T |
E |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 2 color indices; used ground-based radiometric albedo |
|
| 620 Drakonia (A906 UO) Discovered 1906-Oct-26 by Metcalf, J. H. at Taunton |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
Alternate Designations
| A906 UO = 1950 ET = 1950 HS = 1955 QE1 |
|
|
