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JPL Small-Body Database Browser
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295412 (2008 JR28)
Classification: Jupiter Trojan          SPK-ID: 2295412
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04925749787322706 8.9745e-08  
a 5.207740766711018 1.7417e-07 au
q 4.951220486970431 5.7004e-07 au
i 12.92746397946084 8.2687e-06 deg
node 212.9440588993044 2.8656e-05 deg
peri 12.87616034901134 7.4581e-05 deg
M 345.2071887977695 6.6904e-05 deg
tp 2458778.869533695386
(2019-Oct-22.36953370)
0.00080503 TDB
period 4340.826855186039
11.88
0.00021777
5.962e-07
d
yr
n .08293350829460142 4.1606e-09 deg/d
Q 5.464261046451603 1.8275e-07 au
  Orbit Determination Parameters
   # obs. used (total)      241  
   data-arc span      8447 days (23.13 yr)  
   first obs. used      1996-04-20  
   last obs. used      2019-06-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58804  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:43:05  

Additional Information
 Earth MOID = 3.94386 au 
 Jupiter MOID = .479362 au 
 T_jup = 2.947 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9   n/a MPO437321  

295412 (2008 JR28)          Discovered 2008-May-08 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 JR28 = 2007 EC209 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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