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52275 (1988 RS12)
Classification: Jupiter Trojan          SPK-ID: 2052275
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06284766748090077 8.2408e-08  
a 5.229486274736508 1.3774e-07 au
q 4.900825260245933 4.0483e-07 au
i 3.608691115920575 6.9613e-06 deg
node 238.0242233693431 0.00010535 deg
peri 159.1565467521885 0.0001211 deg
M 185.5030266196716 5.8837e-05 deg
tp 2461117.751093966802
(2026-Mar-18.25109397)
0.00074489 TDB
period 4368.043634583606
11.96
0.00017257
4.725e-07
d
yr
n .08241675910692174 3.2561e-09 deg/d
Q 5.558147289227083 1.4639e-07 au
  Orbit Determination Parameters
   # obs. used (total)      447  
   data-arc span      11180 days (30.61 yr)  
   first obs. used      1988-09-14  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55804  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 03:05:20  

Additional Information
 Earth MOID = 3.90843 au 
 Jupiter MOID = .113453 au 
 T_jup = 2.992 
[ 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 12.6   n/a MPO436150  
diameter diameter 18.410 km 1.323 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.052   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

52275 (1988 RS12)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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