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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06310136342645382 6.7652e-08  
a 5.228486591606988 1.2508e-07 au
q 4.898561959019655 3.559e-07 au
i 3.609103892687843 6.6811e-06 deg
node 238.0231172137555 7.989e-05 deg
peri 158.9844939944137 9.2568e-05 deg
M 202.1909144020732 5.1107e-05 deg
tp 2461114.720343472117
(2026-Mar-15.22034347)
0.00066677 TDB
period 4366.791183403291
11.96
0.0001567
4.29e-07
d
yr
n .08244039728032777 2.9583e-09 deg/d
Q 5.558411224194321 1.3297e-07 au
  Orbit Determination Parameters
   # obs. used (total)      513  
   data-arc span      11843 days (32.42 yr)  
   first obs. used      1988-09-14  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 10:43:56  

Additional Information
 Earth MOID = 3.90505 au 
 Jupiter MOID = .114161 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 12.57   n/a MPCxxxxx  
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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