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307261 (2002 MS4)
Classification: TransNeptunian Object          SPK-ID: 2307261
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1475133672813018 9.0661e-05  
a 41.61736463746978 0.004508 AU
q 35.47824704242284 0.0076155 AU
i 17.69633019307219 0.00016267 deg
node 216.0860342381787 0.0006898 deg
peri 215.4984994806499 0.0043957 deg
M 214.0815740949918 0.0088834 deg
tp 2496548.742031740060
(2123-Mar-21.24203174)
8.4828 JED
period 98064.15497342135
268.49
15.934
0.04362
d
yr
n .003671066151516546 5.9648e-07 deg/d
Q 47.75648223251672 0.005173 AU
  Orbit Determination Parameters
   # obs. used (total)      55  
   data-arc span      20253 days (55.45 yr)  
   first obs. used      1954-04-08  
   last obs. used      2009-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .29586  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 13:20:21  

Additional Information
 Earth MOID = 34.5074 AU 
 T_jup = 5.455 
[ 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 3.7 mag n/a MPO212172  

307261 (2002 MS4)          Discovered 2002-Jun-18 by Trujillo, C. A., Brown, M. E. at Palomar (644)
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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