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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285966139686196 4.5788e-08  
a 2.255546516688694 1.4571e-08 AU
q 1.965490871993813 1.0451e-07 AU
i 4.924418566953071 5.9582e-06 deg
node 123.0275305403941 5.7867e-05 deg
peri 317.3435651625998 6.4516e-05 deg
M 263.1320594049575 3.2359e-05 deg
tp 2457333.430570524297
(2015-Nov-06.93057052)
0.00011337 JED
period 1237.303122710145
3.39
1.1989e-05
3.282e-08
d
yr
n .2909553798033491 2.8194e-09 deg/d
Q 2.545602161383575 1.6445e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      995  
   data-arc span      9389 days (25.71 yr)  
   first obs. used      1989-01-08  
   last obs. used      2014-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53001  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:16:22  

Additional Information
 Earth MOID = .984278 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 14.4 mag n/a MPO263437  

9868 (1991 VP1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro (399)
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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