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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 8 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .5005176615359126 | 3.3888e-05 | |
| a | 67.47357560503623 | 0.0033605 | au |
| q | 33.7018593277369 | 0.0014783 | au |
| i | 30.65660365929162 | 0.0001702 | deg |
| node | 336.8538923752637 | 2.8877e-05 | deg |
| peri | 207.6715616189834 | 0.0061293 | deg |
| M | 106.0046466439984 | 0.015959 | deg |
| tp | 2399390.185027997861
(1857-Mar-16.68502800) | 4.9542 | TDB |
| period | 202441.2520518102
554.25 | 15.124
0.04141 | d
yr |
| n | .001778293684470328 | 1.3285e-07 | deg/d |
| Q | 101.2452918823356 | 0.0050424 | au |
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| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
1.92 |
|
n/a |
E2021B55 |
|
| rotation period |
rot_per |
22.40 |
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.; Csaba, K.; Muller, T.G.; Molnar, L.; et al. (2016) Astron. J. 151, A117.] |
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| 225088 Gonggong | Discovered 2007 July 17 by M. E. Schwamb, M. E. Brown and D. Rabinowitz at Palomar. |
| Gonggong is a Chinese water god with red hair and a serpent-like tail. He is known for creating chaos, causing flooding, and tilting the Earth; he is often depicted with the head of a human and the body of a snake. Gonggong is often attended by his minister, Xiangliu, a nine-headed poisonous snake monster for whom the satellite is named. |
| 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 2020-02-05 | Last Updated: 2020-02-24 |
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