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216852 (2007 VR257)
Classification: Main-belt Asteroid          SPK-ID: 2216852
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03307417108223227 4.7112e-08  
a 2.687499222011563 1.8116e-08 au
q 2.598612412959386 1.2917e-07 au
i 6.080928523087533 5.8321e-06 deg
node 23.76428536618826 3.781e-05 deg
peri 30.02388556223009 0.00010298 deg
M 354.5408201287699 9.2041e-05 deg
tp 2459224.903147827092
(2021-Jan-10.40314783)
0.00041136 TDB
period 1609.240476587107
4.41
1.6271e-05
4.455e-08
d
yr
n .2237080195518644 2.262e-09 deg/d
Q 2.776386031063739 1.8715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-11-17  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57479  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:56:32  

Additional Information
 Earth MOID = 1.60905 au 
 Jupiter MOID = 2.32701 au 
 T_jup = 3.365 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.10   n/a MPCxxxxx  

216852 (2007 VR257)          Discovered 2007-Nov-13 by CSS at Catalina
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

[ show close-approach data ]
Alternate Designations
 2007 VR257 = 2005 GX171 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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