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437122 (2012 UN137)
Classification: Main-belt Asteroid          SPK-ID: 2437122
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1762338212919795 1.7064e-07  
a 3.021324527471718 4.8088e-08 au
q 2.488864960632193 5.2472e-07 au
i 4.151410890793788 1.6695e-05 deg
node 222.5204575283473 0.00012549 deg
peri 175.0520988211199 0.00012864 deg
M 162.9975445942414 3.2362e-05 deg
tp 2458131.993540505949
(2018-Jan-13.49354051)
0.00015814 TDB
period 1918.202671065908
5.25
4.5796e-05
1.254e-07
d
yr
n .1876756848638705 4.4806e-09 deg/d
Q 3.553784094311244 5.6563e-08 au
  Orbit Determination Parameters
   # obs. used (total)      72  
   data-arc span      8599 days (23.54 yr)  
   first obs. used      1996-10-06  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52475  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:39:29  

Additional Information
 Earth MOID = 1.49635 au 
 Jupiter MOID = 1.86941 au 
 T_jup = 3.218 
[ 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 16.9   n/a MPO336222  

437122 (2012 UN137)          Discovered 1996-Oct-06 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-06-04

[ show close-approach data ]
Alternate Designations
 2012 UN137 = 1996 TN21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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