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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 31 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .06163769003647838 | 3.969e-08 | |
| a | 2.325614520801796 | 7.5082e-09 | au |
| q | 2.182269013824282 | 9.2827e-08 | au |
| i | 7.597128092522413 | 3.539e-06 | deg |
| node | 114.9151358416469 | 3.1657e-05 | deg |
| peri | 96.06954737148422 | 4.3779e-05 | deg |
| M | 343.7718126621954 | 3.0483e-05 | deg |
| tp | 2459058.894579350419
(2020-Jul-28.39457935) | 0.00010968 | TDB |
| period | 1295.403369985665
3.55 | 6.2733e-06
1.718e-08 | d
yr |
| n | .2779057151935492 | 1.3458e-09 | deg/d |
| Q | 2.46896002777931 | 7.971e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.55 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
208.857 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] |
|
| 17921 Aldeobaldia | Discovered 1999 Apr. 15 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. |
| Anna Lisa De Obaldia (b. 1985) was awarded third place in the 2003 Intel International Science and Engineering Fair for her microbiology project. She also received the Intel Foundation Achievement Award. She attends the Moorestown High School, Moorestown, New Jersey, U.S.A. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20040614/MPCPages.arc | Last Updated: 2009-12-11 |
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Alternate Designations
| 1999 GC13 = 1996 MW1 = 1997 WD57 |
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