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15810 (1994 JR1)
Classification: TransNeptunian Object          SPK-ID: 2015810
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1183498438364974 0.00019288  
a 39.36539076528577 0.011247 au
q 34.70650291565151 0.0023431 au
i 3.808409912016377 5.1049e-05 deg
node 144.6807432664234 0.0011369 deg
peri 101.2251162690923 0.031805 deg
M 29.73772496874849 0.037102 deg
tp 2449948.454173175688
(1995-Aug-18.95417318)
6.2341 JED
period 90213.23926009983
246.99
38.661
0.1058
d
yr
n .003990545101280089 1.7102e-06 deg/d
Q 44.02427861492004 0.012578 au
  Orbit Determination Parameters
   # obs. used (total)      49  
   data-arc span      7701 days (21.08 yr)  
   first obs. used      1994-05-12  
   last obs. used      2015-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      3  
   fit RMS      .43473  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:55:21  

Additional Information
 Earth MOID = 33.6944 au 
 Jupiter MOID = 29.3494 au 
 T_jup = 5.583 
[ 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 7.6 mag n/a E2015L43  

15810 (1994 JR1)          Discovered 1994-May-12 by Irwin, M. J., Zytkow, A. at La Palma
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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