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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 55 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2079331767822402 | 1.3458e-08 | |
| a | 2.664573149701916 | 4.6428e-09 | au |
| q | 2.110519989915737 | 3.6251e-08 | au |
| i | 2.105570821340797 | 2.9435e-07 | deg |
| node | 115.0673735693396 | 6.2703e-06 | deg |
| peri | 300.9895867899517 | 7.2019e-06 | deg |
| M | 62.02506270126071 | 3.0956e-06 | deg |
| tp | 2458926.781211558799
(2020-Mar-18.28121156) | 1.3506e-05 | TDB |
| period | 1588.692692072515
4.35 | 4.1523e-06
1.137e-08 | d
yr |
| n | .2266014074316444 | 5.9226e-10 | deg/d |
| Q | 3.218626309488095 | 5.6082e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
|
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
9.21 |
|
n/a |
E2021B10 |
IRAS observations used: 9 |
| diameter |
diameter |
87.928 |
km |
1.616 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
10.64 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Denchev, P. (1999) Abstracts of ACM 1999, 117.]
[Denchev, P. (2000) Planet. Space Sci. 48, 987-992.]
[Alton, K.B. (2016) Minor Planet Bull. 43, 217-218.] |
| geometric albedo |
albedo |
0.031 |
|
0.009 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N) |
|
| B-V |
BV |
0.705 |
|
0.011 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.73, mean=8.50, max.=15.96) deg. |
| U-B |
UB |
0.368 |
|
0.034 |
EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 |
#obs=4; phase (min.=.73, mean=8.50, max.=15.96) deg. |
| Tholen spectral type |
spec_T |
C |
|
n/a |
EAR-A-5-DDR-TAXONOMY-V4.0 |
used 7 color indices |
| SMASSII spectral type |
spec_B |
C |
|
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) |
|
| 240 Vanadis (A884 QB) Discovered 1884-Aug-27 by Borrelly, A. at Marseille |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
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