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78964 (2003 SR251)
Classification: Main-belt Asteroid          SPK-ID: 2078964
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1449611954194041 5.1066e-08  
a 2.281295386275215 6.4182e-09 au
q 1.950596079975989 1.1791e-07 au
i 6.982306322361444 4.8813e-06 deg
node 34.67245796898654 3.0468e-05 deg
peri 338.9258386663686 3.2733e-05 deg
M 317.2023761613867 1.0665e-05 deg
tp 2459150.119385461021
(2020-Oct-27.61938546)
3.7215e-05 TDB
period 1258.550684240807
3.45
5.3112e-06
1.454e-08
d
yr
n .2860433072007443 1.2071e-09 deg/d
Q 2.611994692574442 7.3486e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-11-07  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50325  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:09  

Additional Information
 Earth MOID = .953561 au 
 Jupiter MOID = 2.85146 au 
 T_jup = 3.581 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457709.5 (2016-Nov-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1459207383426058 5.1027e-08  
q 1.947953911059579 1.1796e-07 au
tp 2457892.474416297808
(2017-May-18.97441630)
3.7718e-05 TDB
node 34.71741821136492 3.0435e-05 deg
peri 339.1159141720335 3.2665e-05 deg
i 6.987442221633935 4.8842e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1125  
   data-arc span      8772 days (24.02 yr)  
   first obs. used      1996-11-07  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50325  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:09  

Additional Information
 Jupiter MOID = 2.85146 au 
 T_jup = 3.581 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.603777119518165E-15 -6.012871551931082E-15 -5.197356348693698E-13 -2.908193543208553E-14 -1.223090317493303E-13 -7.756564244462988E-15
q -6.012871551931082E-15 1.391370377366017E-14 1.136410845879154E-12 6.71394681457571E-14 2.618381022311452E-13 1.788127650533206E-14
tp -5.197356348693698E-13 1.136410845879154E-12 1.422612866495409E-9 1.24458231067592E-11 4.599070295192051E-10 1.675417954936384E-12
node -2.908193543208553E-14 6.71394681457571E-14 1.24458231067592E-11 9.26277946461168E-10 -9.151842862315201E-10 -9.018774780014521E-11
peri -1.223090317493303E-13 2.618381022311452E-13 4.599070295192051E-10 -9.151842862315201E-10 1.06701345802747E-9 9.003466658247614E-11
i -7.756564244462988E-15 1.788127650533206E-14 1.675417954936384E-12 -9.018774780014521E-11 9.003466658247614E-11 2.385502245787706E-11

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 MPO235118  

78964 (2003 SR251)          Discovered 2003-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2003 SR251 = 1996 VV39 = 2002 JS147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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