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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1286437384743581 4.9857e-08  
a 2.255604948013483 1.5227e-08 AU
q 1.965435494979769 1.1225e-07 AU
i 4.924324825841446 6.3867e-06 deg
node 123.0276362381613 7.3162e-05 deg
peri 317.314302562626 8.0194e-05 deg
M 204.9811598022151 3.4194e-05 deg
tp 2457333.313189877054
(2015-Nov-06.81318988)
0.00012012 JED
period 1237.351202673237
3.39
1.253e-05
3.431e-08
d
yr
n .290944074101385 2.9462e-09 deg/d
Q 2.545774401047198 1.7186e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      965  
   data-arc span      9223 days (25.25 yr)  
   first obs. used      1989-01-08  
   last obs. used      2014-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56031  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:57:27  

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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