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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2140802814542471 3.8088e-08  
a 2.726154375676449 1.849e-08 au
q 2.142538479643907 1.0821e-07 au
i 8.21407079399326 5.3119e-06 deg
node 326.8774536431249 2.9507e-05 deg
peri 293.7490747131335 3.1886e-05 deg
M 333.1605812846494 1.2272e-05 deg
tp 2459123.072967268704
(2020-Sep-30.57296727)
5.6264e-05 TDB
period 1644.084347903402
4.50
1.6726e-05
4.579e-08
d
yr
n .2189668677638623 2.2277e-09 deg/d
Q 3.30977027170899 2.2448e-08 au
  Orbit Determination Parameters
   # obs. used (total)      553  
   data-arc span      7944 days (21.75 yr)  
   first obs. used      1998-07-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53405  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:40:37  

Additional Information
 Earth MOID = 1.14306 au 
 Jupiter MOID = 1.87104 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 15.4   n/a MPO432709  

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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