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9868 (1991 VP1)
Classification: Main-belt Asteroid          SPK-ID: 2009868
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287374712633913 4.5652e-08  
a 2.255872390889943 9.3205e-09 au
q 1.965457083793871 1.0317e-07 au
i 4.923693229221303 5.643e-06 deg
node 123.0218590403916 5.1295e-05 deg
peri 317.5193383921379 5.5863e-05 deg
M 77.54791356193067 2.1392e-05 deg
tp 2457333.913693756221
(2015-Nov-07.41369376)
7.3173e-05 JED
period 1237.571274836647
3.39
7.6698e-06
2.1e-08
d
yr
n .2908923367242168 1.8028e-09 deg/d
Q 2.546287697986015 1.052e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      9961 days (27.27 yr)  
   first obs. used      1989-01-08  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53041  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:06:38  

Additional Information
 Earth MOID = .982925 au 
 Jupiter MOID = 2.66026 au 
 T_jup = 3.608 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO365367  

9868 (1991 VP1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990106/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 VP1 = 1994 PQ27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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