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JPL Small-Body Database Browser
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212904 (2007 XB4)
Classification: Main-belt Asteroid          SPK-ID: 2212904
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1084823714743571 5.0932e-08  
a 3.173030636804021 4.4377e-08 au
q 2.828812748562732 1.7551e-07 au
i 11.11188214238624 8.6779e-06 deg
node 60.14881831350198 4.5173e-05 deg
peri 44.39145492753018 7.8348e-05 deg
M 324.6757250446809 6.1581e-05 deg
tp 2458803.072543320201
(2019-Nov-15.57254332)
0.00035432 TDB
period 2064.475935812263
5.65
4.331e-05
1.186e-07
d
yr
n .1743783949016383 3.6582e-09 deg/d
Q 3.517248525045311 4.9191e-08 au
  Orbit Determination Parameters
   # obs. used (total)      251  
   data-arc span      6338 days (17.35 yr)  
   first obs. used      2001-09-18  
   last obs. used      2019-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6453  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 10:14:08  

Additional Information
 Earth MOID = 1.85811 au 
 Jupiter MOID = 1.75596 au 
 T_jup = 3.163 
[ 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 15.3   n/a MPO454528  
diameter diameter 5.049 km 0.314 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.053   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212904 (2007 XB4)          Discovered 2007-Dec-03 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2007 XB4 = 2004 FH31 = 2007 VU300 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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