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52621 (1997 VW4)
Classification: Main-belt Asteroid          SPK-ID: 2052621
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .115923440468258 1.5382e-07  
a 2.570380163341375 2.8968e-08 AU
q 2.27241285149548 3.9414e-07 AU
i 14.13083662611315 9.7176e-06 deg
node 49.48999784251257 3.2264e-05 deg
peri 129.5001125090823 4.256e-05 deg
M 239.2700533244223 3.7264e-05 deg
tp 2457305.285622084487
(2015-Oct-09.78562208)
0.0001608 JED
period 1505.200896333832
4.12
2.5445e-05
6.966e-08
d
yr
n .2391707318782762 4.0432e-09 deg/d
Q 2.86834747518727 3.2326e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      8807 days (24.11 yr)  
   first obs. used      1989-11-24  
   last obs. used      2014-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54794  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-22 12:22:10  

Additional Information
 Earth MOID = 1.29816 AU 
 T_jup = 3.378 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6 mag n/a MPO266195  

52621 (1997 VW4)          Discovered 1997-Nov-04 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905)
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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