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90908 (1997 GJ1)
Classification: Main-belt Asteroid          SPK-ID: 2090908
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1817323226539809 5.1175e-08  
a 2.992447086590836 2.6174e-08 au
q 2.448622727125545 1.4468e-07 au
i 10.19915894187442 5.4752e-06 deg
node 183.8303473724142 2.7579e-05 deg
peri 172.1191191169217 3.14e-05 deg
M 5.873774614555775 1.9153e-05 deg
tp 2458969.650159441742
(2020-Apr-30.15015944)
0.00010033 TDB
period 1890.767577879381
5.18
2.4807e-05
6.792e-08
d
yr
n .1903988645731716 2.4981e-09 deg/d
Q 3.536271446056126 3.0931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      500  
   data-arc span      8518 days (23.32 yr)  
   first obs. used      1997-04-02  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59438  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:14:40  

Additional Information
 Earth MOID = 1.44501 au 
 Jupiter MOID = 1.92535 au 
 T_jup = 3.207 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO432447  

90908 (1997 GJ1)          Discovered 1997-Apr-02 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 GJ1 = 1999 RX91 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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