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187992 (2001 SA42)
Classification: Main-belt Asteroid          SPK-ID: 2187992
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141158722475554 6.9752e-08  
a 2.451834442028002 1.0609e-08 au
q 1.926857771866578 1.7608e-07 au
i 2.422398043199602 5.5068e-06 deg
node 8.033981969252199 0.00012314 deg
peri 320.7260104631107 0.0001241 deg
M 25.72342543286659 1.1128e-05 deg
tp 2459100.301449535980
(2020-Sep-07.80144954)
4.3516e-05 TDB
period 1402.281288749326
3.84
9.1011e-06
2.492e-08
d
yr
n .2567245265898674 1.6662e-09 deg/d
Q 2.976811112189425 1.288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      296  
   data-arc span      7503 days (20.54 yr)  
   first obs. used      2000-04-05  
   last obs. used      2020-10-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 07:45:21  

Additional Information
 Earth MOID = .914549 au 
 Jupiter MOID = 2.37837 au 
 T_jup = 3.462 
[ 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 17.36   n/a E2021B55  

187992 (2001 SA42)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20080618/Numbers.arcLast Updated: 2008-06-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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