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27770 (1991 VF1)
Classification: Main-belt Asteroid          SPK-ID: 2027770
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1210460012584927 7.4352e-08  
a 2.251447840056362 1.2416e-08 AU
q 1.978919081975469 1.6999e-07 AU
i 3.627871664005649 7.4293e-06 deg
node 6.177159881522727 8.02e-05 deg
peri 352.5312192524367 8.2593e-05 deg
M 160.1967996782746 2.1444e-05 deg
tp 2455851.411185432735
(2011-Oct-16.91118543)		 7.2407e-05 JED
period 1233.932098776023
3.38		 1.0207e-05
2.795e-08		 d
yr
n .2917502513769563 2.4134e-09 deg/d
Q 2.523976598137256 1.3919e-08 AU
   Orbit Determination Parameters
   # obs. used (total)      964  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1991-11-04  
   last obs. used      2013-04-12  
   planetary ephem.      DE405  
   SB-pert. ephem.      SB405-CPV-2  
   condition code      0  
   fit RMS      .54339  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Apr-29 14:47:18  

Additional Information
 Earth MOID = .974706 AU 
 T_jup = 3.614 
[ 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 PDS3 (MPO 15159)  

27770 (1991 VF1)          Discovered 1991-Nov-04 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1991 VF1 = 1998 XO17 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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