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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1655558469518713 3.1637e-05  
a 48.31401082528542 0.0022159 au
q 40.31534384346342 0.0006969 au
i 12.02633049981458 0.00013185 deg
node 272.5756100093906 0.00031948 deg
peri 8.037177834798552 0.0081064 deg
M 342.5895974727021 0.0061934 deg
tp 2465132.680768583299
(2037-Mar-15.18076858)
1.8516 TDB
period 122661.4418214386
335.83
8.4388
0.0231
d
yr
n .002934907617701584 2.0191e-07 deg/d
Q 56.31267780710743 0.0025828 au
  Orbit Determination Parameters
   # obs. used (total)      205  
   data-arc span      4813 days (13.18 yr)  
   first obs. used      2002-05-10  
   last obs. used      2015-07-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .36139  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 04:04:37  

Additional Information
 Earth MOID = 39.2974 au 
 Jupiter MOID = 35.0981 au 
 T_jup = 5.986 
[ 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 4.5   n/a MPO386165  
rotation period rot_per 6.04 h n/a LCDB (Rev. 2020-October); 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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