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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286436823142206 4.6097e-08  
a 2.255604934567236 1.4707e-08 AU
q 1.96543560993838 1.0501e-07 AU
i 4.924326301353705 5.9675e-06 deg
node 123.0276398359723 6.1048e-05 deg
peri 317.3142889284938 6.7592e-05 deg
M 204.9811772479089 3.2215e-05 deg
tp 2457333.313125150336
(2015-Nov-06.81312515)
0.00011403 JED
period 1237.351191608978
3.39
1.2102e-05
3.313e-08
d
yr
n .2909440767029749 2.8456e-09 deg/d
Q 2.545774259196091 1.6599e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      9307 days (25.48 yr)  
   first obs. used      1989-01-08  
   last obs. used      2014-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52548  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:22:45  

Additional Information
 Earth MOID = .983801 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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