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120851 (1998 OF12)
Classification: Main-belt Asteroid          SPK-ID: 2120851
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2144131222846005 3.7323e-08  
a 2.727251173486529 1.7685e-08 au
q 2.142492734124941 1.0697e-07 au
i 8.214441559222493 4.8244e-06 deg
node 326.87210789 2.9349e-05 deg
peri 293.7485780941794 3.1603e-05 deg
M 16.94730844311872 1.1281e-05 deg
tp 2459123.056608162940
(2020-Sep-30.55660816)		 5.1487e-05 TDB
period 1645.076630009762
4.50		 1.6001e-05
4.381e-08		 d
yr
n .218834790691704 2.1285e-09 deg/d
Q 3.312009612848116 2.1477e-08 au
   Orbit Determination Parameters
   # obs. used (total)      605  
   data-arc span      7972 days (21.83 yr)  
   first obs. used      1998-07-29  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53202  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:54:16  

Additional Information
 Earth MOID = 1.14134 au 
 Jupiter MOID = 1.86812 au 
 T_jup = 3.308 
[ 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 15.50   n/a E2021B55  

120851 (1998 OF12)          Discovered 1998-Jul-29 by Broughton, J. at Reedy Creek
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Alternate Designations
 1998 OF12 = 2003 SK128 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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