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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1285181683049917 4.5737e-08  
a 2.255210582393192 1.0641e-08 au
q 1.965375049201986 1.0367e-07 au
i 4.9243509922766 5.7014e-06 deg
node 123.0263589897478 5.4744e-05 deg
peri 317.4304028685581 5.9619e-05 deg
M 19.45008277695498 2.4228e-05 deg
tp 2457333.665911223594
(2015-Nov-07.16591122)
8.3064e-05 JED
period 1237.026712709588
3.39
8.7549e-06
2.397e-08
d
yr
n .2910203929318994 2.0597e-09 deg/d
Q 2.545046115584399 1.2008e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1096  
   data-arc span      9842 days (26.95 yr)  
   first obs. used      1989-01-08  
   last obs. used      2015-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51732  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:12:11  

Additional Information
 Earth MOID = .983915 au 
 Jupiter MOID = 2.66282 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
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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