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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 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .09272675583557244 | 4.8946e-08 | |
| a | 2.52109329850882 | 1.4117e-08 | au |
| q | 2.287320495779295 | 1.2513e-07 | au |
| i | 12.45096386562199 | 3.4046e-06 | deg |
| node | 145.208658448382 | 2.5416e-05 | deg |
| peri | 301.9337351557363 | 3.3932e-05 | deg |
| M | 27.74272072081076 | 2.1642e-05 | deg |
| tp | 2458887.824796000902
(2020-Feb-08.32479600) | 8.8067e-05 | TDB |
| period | 1462.115913139251
4.00 | 1.228e-05
3.362e-08 | d
yr |
| n | .2462185089190763 | 2.068e-09 | deg/d |
| Q | 2.754866101238345 | 1.5426e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.6 |
|
n/a |
MPO502628 |
|
|
| 78309 Alessielisa | Discovered 2002 Aug. 5 by F. Bernardi at Campo Imperatore. |
| Elisa Maria Alessi (b. 1981) has worked for several years in the fields of space debris dynamics, orbit determination for interplanetary missions, and trajectory design in planet-satellite systems. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: MPC batch dated 2014-10-08 | Last Updated: 2015-01-12 |
|
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