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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618529966269205 0.00014879  
a 48.1943932573821 0.010599 au
q 40.39398628805856 0.0028678 au
i 12.05377276124089 0.00015335 deg
node 272.5228357933117 0.00059754 deg
peri 6.573551561093414 0.031715 deg
M 338.8338651568636 0.027302 deg
tp 2464785.590791782349
(2036-Apr-02.09079178)
7.3515 JED
period 122206.1894725391
334.58
40.315
0.1104
d
yr
n .002945840972162014 9.7182e-07 deg/d
Q 55.99480022670564 0.012315 au
  Orbit Determination Parameters
   # obs. used (total)      104  
   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      .40936  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-12 09:02:02  

Additional Information
 Earth MOID = 39.3776 au 
 Jupiter MOID = 35.1647 au 
 T_jup = 5.982 
[ 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 LCDB (Rev. 2016-February); Warner et al., 2009 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
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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