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278361 (2007 JJ43)
Classification: TransNeptunian Object          SPK-ID: 2278361
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 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570367721990476 0.00019518  
a 47.88205477641591 0.013344 AU
q 40.36281144806956 0.0035411 AU
i 12.08094874843494 0.00016969 deg
node 272.4643057911264 0.00056852 deg
peri 7.676886045947649 0.040177 deg
M 335.4502224935096 0.035885 deg
tp 2465053.325365671564
(2036-Dec-25.82536567)
9.3248 JED
period 121020.1245553566
331.34
50.591
0.1385
d
yr
n .002974711861541094 1.2435e-06 deg/d
Q 55.40129810476225 0.01544 AU
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      3661 days (10.02 yr)  
   first obs. used      2002-05-10  
   last obs. used      2012-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .37406  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-10 02:34:36  

Additional Information
 Earth MOID = 39.3463 AU 
 T_jup = 5.968 
[ 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 3.9 mag n/a MPO241649  
rotation period rot_per 6.04 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benecchi, S.D.; Sheppard, S.S. (2013) Astron. J. 145, A124.]

278361 (2007 JJ43)          Discovered 2007-May-14 by Palomar at Palomar (675)
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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