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225088 Gonggong (2007 OR10)
Classification: TransNeptunian Object          SPK-ID: 2225088
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5004814860780427 0.00010331  
a 67.47051418678518 0.0073454 au
q 33.70277098013327 0.004492 au
i 30.6568537182735 0.00055841 deg
node 336.8538560791695 0.00010802 deg
peri 207.6663020246991 0.014036 deg
M 106.0196839227434 0.03991 deg
tp 2399385.786510423684
13.542 TDB
period 202427.4744290536
n .00177841471873015 2.9042e-07 deg/d
Q 101.2382573934371 0.011022 au
  Orbit Determination Parameters
   # obs. used (total)      230  
   data-arc span      10989 days (30.09 yr)  
   first obs. used      1985-08-19  
   last obs. used      2015-09-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .35493  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-10 22:32:45  

Additional Information
 Earth MOID = 32.7349 au 
 Jupiter MOID = 28.4442 au 
 T_jup = 5.441 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 1.6   n/a MPO470411  
rotation period rot_per 22.40 h n/a LCDB (Rev. 2019-August); 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.]

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 2020-02-05Last Updated: 2020-02-24
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
FirstGov 2020-Jul-15 00:01 UT
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