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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 36 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3177142769862304 | 3.434e-08 | |
| a | 2.758100968856966 | 9.7122e-09 | au |
| q | 1.881812913681553 | 9.3044e-08 | au |
| i | 13.59872550595106 | 4.7189e-06 | deg |
| node | 255.420301291573 | 1.7189e-05 | deg |
| peri | 114.1375320863633 | 1.8713e-05 | deg |
| M | 21.8796535433835 | 8.673e-06 | deg |
| tp | 2458898.816237367387
(2020-Feb-19.31623737) | 3.9955e-05 | TDB |
| period | 1673.068290371105
4.58 | 8.8372e-06
2.419e-08 | d
yr |
| n | .2151735240407599 | 1.1365e-09 | deg/d |
| Q | 3.634389024032379 | 1.2798e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.8 |
|
n/a |
MPO502188 |
|
| diameter |
diameter |
19.087 |
km |
0.229 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
| rotation period |
rot_per |
3.5973 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Behrend, R. (2001) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Stephens, R.D.; Warner, B.D.; Pravec, P.; Kusnirak, P.; et al. (2002) Minor Planet Bull. 29, 41-46.]
[Szekely, P.; Kiss, L.L.; Szabo, Gy.M.; Sarneczky, K.; et al. (2005) Planet. Space Sci. 53, 925-936.]
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Klinglesmith III, D.A.; Hendrickx, S.; Madden, K.; Montgomery, S. (2016) Minor Planet Bull. 43, 123-128.]
[Behrend, R. (2019) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] |
| geometric albedo |
albedo |
0.138 |
|
0.016 |
urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M) |
|
|
| 3682 Welther (A923 NB) Discovered 1923-Jul-12 by Reinmuth, K. at Heidelberg |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
|
[ hide close-approach data ]
Close-Approach Data ...sorted by Date/Time (TDB)
|
| Date/Time (TDB) |
Time Uncertainty
(days_HH:MM) |
Body |
Nominal Distance (au) |
Minimum Distance (au) |
Maximum Distance (au) |
V-relative (km/s) |
V-infinity (km/s) |
JD (TDB) |
Time Uncertainty (minutes) |
Semi-major axis (km) |
Semi-minor axis (km) |
range-LOV angle (deg) |
N-sigma |
BP |
Orbit Ref. |
Reference |
Modified |
| 1955-Feb-06 17:21 |
< 00:01 |
Ceres |
0.0482990194574253 |
0.0482950624417164 |
0.0483029765901544 |
9.89216177675076 |
9.89216089252704 |
2435145.222961650 |
0.405224965559895 |
231.920380732241 |
49.6823537688147 |
-32.6800040001656 |
82666.917955197 |
T |
36 |
CATAB v2.0f-lin.ifort 2020-Dec-18 02:13:37 |
2020-Dec-18 02:13 |
|
Alternate Designations
| A923 NB = 1951 YO = 1978 NP3 = 1984 AA |
|
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