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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1882177308338367 2.7647e-08  
a 2.467015633268958 9.9648e-09 au
q 2.002679548843474 6.781e-08 au
i 6.963264113718164 3.1717e-06 deg
node 233.7258637917417 3.8593e-05 deg
peri 198.0445159283012 4.1057e-05 deg
M 188.8243571132674 1.6398e-05 deg
tp 2459673.470064547361
(2022-Apr-03.97006455)
6.7095e-05 TDB
period 1415.325329885633
3.87
8.5752e-06
2.348e-08
d
yr
n .2543584802718752 1.5411e-09 deg/d
Q 2.931351717694442 1.184e-08 au
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1998-11-09  
   last obs. used      2020-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:49  

Additional Information
 Earth MOID = 1.01836 au 
 Jupiter MOID = 2.36662 au 
 T_jup = 3.452 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457122.5 (2015-Apr-10.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1890372398465854 2.7783e-08  
q 2.000329579650091 6.8311e-08 au
tp 2456845.419741103097
(2014-Jul-06.91974110)
5.7137e-05 TDB
node 233.7579726347385 3.8591e-05 deg
peri 198.2891502377639 4.1024e-05 deg
i 6.963984938066984 3.1723e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      7975 days (21.83 yr)  
   first obs. used      1998-11-09  
   last obs. used      2020-09-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:49  

Additional Information
 Jupiter MOID = 2.36662 au 
 T_jup = 3.452 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.718769762663404E-16 -1.884830501208926E-15 2.899795033482948E-13 -2.912514751117283E-15 8.057140298725434E-14 7.406338204423498E-17
q -1.884830501208926E-15 4.666444168452985E-15 -5.166833008282957E-13 8.279562157411256E-15 -1.487980959739351E-13 -1.193537236428461E-16
tp 2.899795033482948E-13 -5.166833008282957E-13 3.264635359710336E-9 8.059449126150982E-12 8.257550756509717E-10 1.197108453459809E-13
node -2.912514751117283E-15 8.279562157411256E-15 8.059449126150982E-12 1.489298041622537E-9 -1.475979603183589E-9 -5.88177090270866E-13
peri 8.057140298725434E-14 -1.487980959739351E-13 8.257550756509717E-10 -1.475979603183589E-9 1.682967256642792E-9 6.507786853927264E-13
i 7.406338204423498E-17 -1.193537236428461E-16 1.197108453459809E-13 -5.88177090270866E-13 6.507786853927264E-13 1.006342180114645E-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

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