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90928 (1997 SS8)
Classification: Main-belt Asteroid          SPK-ID: 2090928
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1390403202620613 5.1802e-08  
a 2.240136154298009 8.6417e-09 au
q 1.928666905973791 1.1537e-07 au
i 1.562316321735815 5.5652e-06 deg
node 155.0075421412454 0.00015204 deg
peri 27.95902470217295 0.00015264 deg
M 198.1747704989075 1.4225e-05 deg
tp 2459946.995509505284
(2023-Jan-02.49550951)
4.9727e-05 TDB
period 1224.644538017259
3.35
7.0864e-06
1.94e-08
d
yr
n .2939628511166613 1.701e-09 deg/d
Q 2.551605402622227 9.8432e-09 au
  Orbit Determination Parameters
   # obs. used (total)      504  
   data-arc span      10564 days (28.92 yr)  
   first obs. used      1991-12-07  
   last obs. used      2020-11-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61834  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 18:16:54  

Additional Information
 Earth MOID = .931972 au 
 Jupiter MOID = 2.4035 au 
 T_jup = 3.622 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO468894  

90928 (1997 SS8)          Discovered 1997-Sep-27 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1997 SS8 = 1996 GO = 2001 XY123 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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