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101212 (1998 SK51)
Classification: Main-belt Asteroid          SPK-ID: 2101212
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1959710918282184 5.045e-08  
a 2.62619690678199 1.1088e-08 au
q 2.111538231604033 1.3398e-07 au
i 12.25562724660434 6.0163e-06 deg
node 13.64266993806388 1.7977e-05 deg
peri 340.6080641288628 2.1531e-05 deg
M 51.06611674898693 9.9564e-06 deg
tp 2458779.994367127968
(2019-Oct-23.49436713)
4.2843e-05 TDB
period 1554.495091610942
4.26
9.8452e-06
2.695e-08
d
yr
n .231586450123125 1.4667e-09 deg/d
Q 3.140855581959946 1.3262e-08 au
  Orbit Determination Parameters
   # obs. used (total)      657  
   data-arc span      8081 days (22.12 yr)  
   first obs. used      1998-09-13  
   last obs. used      2020-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57461  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:01:50  

Additional Information
 Earth MOID = 1.11172 au 
 Jupiter MOID = 2.31644 au 
 T_jup = 3.343 
[ 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 15.8   n/a MPO493568  

101212 (1998 SK51)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 SK51 = 2002 SJ56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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