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85802 (1998 VK55)
Classification: Main-belt Asteroid          SPK-ID: 2085802
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 .07904242214985617 4.3599e-08  
a 2.590853980014993 1.4866e-08 au
q 2.386066605998013 1.1453e-07 au
i 2.00996942943746 4.7039e-06 deg
node 237.0926992325076 0.00013649 deg
peri 1.528362967330271 0.00013996 deg
M 232.7243494494484 3.2197e-05 deg
tp 2459539.024736681205
(2021-Nov-20.52473668)
0.00013705 TDB
period 1523.220697491015
4.17
1.311e-05
3.589e-08
d
yr
n .2363413263704838 2.0341e-09 deg/d
Q 2.795641354031973 1.6041e-08 au
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      21668 days (59.32 yr)  
   first obs. used      1960-09-25  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:38:56  

Additional Information
 Earth MOID = 1.37379 au 
 Jupiter MOID = 2.19883 au 
 T_jup = 3.414 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456971.5 (2014-Nov-10.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07983600722800044 4.328e-08  
q 2.383486841090509 1.1374e-07 au
tp 2456495.797173397960
(2013-Jul-22.29717340)
0.00013412 TDB
node 237.1664327865171 0.00013675 deg
peri 2.04666650219085 0.00014019 deg
i 2.007734142903736 4.7016e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      21668 days (59.32 yr)  
   first obs. used      1960-09-25  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52912  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:38:56  

Additional Information
 Jupiter MOID = 2.19883 au 
 T_jup = 3.414 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.873154140508284E-15 -4.886972517434247E-15 -1.718333977821048E-12 -1.844981420755004E-14 -4.140661431252156E-13 6.025949472338075E-16
q -4.886972517434247E-15 1.293612965406986E-14 4.442614616602273E-12 5.059614360659584E-14 1.079492204375835E-12 -1.492366170086681E-15
tp -1.718333977821048E-12 4.442614616602273E-12 1.798810985283571E-8 2.910687650532751E-11 4.169754024493948E-9 -3.4529281639888E-12
node -1.844981420755004E-14 5.059614360659584E-14 2.910687650532751E-11 1.870024432269578E-8 -1.868098876671078E-8 -1.699977710497846E-10
peri -4.140661431252156E-13 1.079492204375835E-12 4.169754024493948E-9 -1.868098876671078E-8 1.965400251202802E-8 1.690991705887962E-10
i 6.025949472338075E-16 -1.492366170086681E-15 -3.4529281639888E-12 -1.699977710497846E-10 1.690991705887962E-10 2.210493623248033E-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 MPO502667  

85802 (1998 VK55)          Discovered 1998-Nov-10 by ODAS at Caussols
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1998 VK55 = 2000 DW30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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