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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5005157561150761 3.7348e-05  
a 67.47377346876286 0.0035261 au
q 33.70208672310765 0.0016262 au
i 30.65648540846807 0.0001956 deg
node 336.8539153735496 3.4408e-05 deg
peri 207.6717228749652 0.0064877 deg
M 106.0045233525631 0.017077 deg
tp 2399389.992151908053
5.3867 TDB
period 202442.1425295171
n .001778285862329827 1.394e-07 deg/d
Q 101.2454602144181 0.005291 au
  Orbit Determination Parameters
   # obs. used (total)      417  
   data-arc span      12763 days (34.94 yr)  
   first obs. used      1985-08-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .4496  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 15:55:56  

Additional Information
 Earth MOID = 32.7342 au 
 Jupiter MOID = 28.4436 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-Oct-31 11:27 UT
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