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85781 (1998 VP2)
Classification: Main-belt Asteroid          SPK-ID: 2085781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882177304893099 2.7659e-08  
a 2.467015633460896 9.9662e-09 au
q 2.002679549849239 6.7842e-08 au
i 6.96326333852504 3.2462e-06 deg
node 233.7258882612918 4.301e-05 deg
peri 198.0444829916271 4.5703e-05 deg
M 188.8243645780573 1.7486e-05 deg
tp 2459673.470035278381
(2022-Apr-03.97003528)
7.1197e-05 TDB
period 1415.325330050805
3.87
8.5764e-06
2.348e-08
d
yr
n .2543584802421909 1.5413e-09 deg/d
Q 2.931351717072552 1.1842e-08 au
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      7474 days (20.46 yr)  
   first obs. used      1998-11-09  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:38:54  

Additional Information
 Earth MOID = 1.01836 au 
 Jupiter MOID = 2.36662 au 
 T_jup = 3.452 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456906.5 (2014-Sep-06.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887445444100517 2.7846e-08  
q 2.000828267157794 6.8383e-08 au
tp 2456845.499919332613
(2014-Jul-06.99991933)
6.2055e-05 TDB
node 233.7927084550739 4.3001e-05 deg
peri 198.3021760266281 4.5662e-05 deg
i 6.964575099515155 3.2468e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      971  
   data-arc span      7474 days (20.46 yr)  
   first obs. used      1998-11-09  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59268  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:38:54  

Additional Information
 Jupiter MOID = 2.36662 au 
 T_jup = 3.452 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.753784551212585E-16 -1.891212414298242E-15 3.1725988305937E-13 9.056225302355017E-16 8.473080426880537E-14 -1.8323441067932E-17
q -1.891212414298242E-15 4.676191426543958E-15 -5.965805969041701E-13 6.156629009190323E-16 -1.640814447789349E-13 1.038182316108912E-16
tp 3.1725988305937E-13 -5.965805969041701E-13 3.850809875716274E-9 1.268194792457245E-11 9.919458052164127E-10 3.923513544804303E-14
node 9.056225302355017E-16 6.156629009190323E-16 1.268194792457245E-11 1.84909278260718E-9 -1.831989379525588E-9 -1.350064800454977E-11
peri 8.473080426880537E-14 -1.640814447789349E-13 9.919458052164127E-10 -1.831989379525588E-9 2.085025321849794E-9 1.345022672541752E-11
i -1.8323441067932E-17 1.038182316108912E-16 3.923513544804303E-14 -1.350064800454977E-11 1.345022672541752E-11 1.054148262355731E-11

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 15.1   n/a MPO267963  

85781 (1998 VP2)          Discovered 1998-Nov-10 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 VP2 = 2002 RC107 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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