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295504 (2008 RF57)
Classification: Jupiter Trojan          SPK-ID: 2295504
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331402763515992 8.1654e-08  
a 5.251207182395147 3.0486e-07 au
q 4.552060006951555 5.8303e-07 au
i 9.517455795854513 8.3052e-06 deg
node 188.2562629762732 5.424e-05 deg
peri 265.8282873548985 7.7813e-05 deg
M 273.3544785476903 7.1645e-05 deg
tp 2460058.366284679064
(2023-Apr-23.86628468)
0.00094763 TDB
period 4395.286174070471
12.03
0.00038275
1.048e-06
d
yr
n .08190592961245212 7.1325e-09 deg/d
Q 5.950354357838739 3.4544e-07 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      6350 days (17.39 yr)  
   first obs. used      2002-04-05  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56045  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 05:43:15  

Additional Information
 Earth MOID = 3.58591 au 
 Jupiter MOID = .0500736 au 
 T_jup = 2.955 
[ 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 13.4   n/a MPO455184  
diameter diameter 12.243 km 0.926 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.056   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

295504 (2008 RF57)          Discovered 2008-Sep-03 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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