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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818776969909646 5.0882e-08  
a 2.993620361125741 1.847e-08 au
q 2.449147584178931 1.4459e-07 au
i 10.1983486112491 4.7138e-06 deg
node 183.8225700195049 2.4566e-05 deg
peri 172.240148269113 2.7584e-05 deg
M 81.14629235183482 1.3339e-05 deg
tp 2458970.058273042648
(2020-Apr-30.55827304)
6.8925e-05 TDB
period 1891.879681193783
5.18
1.7508e-05
4.793e-08
d
yr
n .1902869424406729 1.761e-09 deg/d
Q 3.53809313807255 2.1829e-08 au
  Orbit Determination Parameters
   # obs. used (total)      735  
   data-arc span      8712 days (23.85 yr)  
   first obs. used      1997-04-02  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54198  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:53:07  

Additional Information
 Earth MOID = 1.44471 au 
 Jupiter MOID = 1.925 au 
 T_jup = 3.206 
[ 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 15.23   n/a MPCxxxxx  

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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