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212905 (2007 XN4)
Classification: Main-belt Asteroid          SPK-ID: 2212905
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .180005055209857 5.8768e-08  
a 3.082220898755074 3.8906e-08 au
q 2.527405555705692 1.9087e-07 au
i 1.66073349443734 9.8253e-06 deg
node 158.9245063626964 0.00021568 deg
peri 259.3081324501462 0.00021773 deg
M 120.784215275762 3.2055e-05 deg
tp 2458337.365306909898
(2018-Aug-06.86530691)
0.00016815 TDB
period 1976.48748197268
5.41
3.7423e-05
1.025e-07
d
yr
n .1821413003034522 3.4487e-09 deg/d
Q 3.637036241804457 4.5909e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      6796 days (18.61 yr)  
   first obs. used      2001-09-18  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59004  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 08:51:17  

Additional Information
 Earth MOID = 1.54034 au 
 Jupiter MOID = 1.71367 au 
 T_jup = 3.202 
[ 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 16.2   n/a MPO241405  

212905 (2007 XN4)          Discovered 2007-Dec-03 by CSS at Catalina
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2007 XN4 = 2001 SD332 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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