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312461 (2008 RK14)
Classification: Jupiter Trojan          SPK-ID: 2312461
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 .02978911405301553 1.4027e-07  
a 5.129629990134735 2.5901e-07 au
q 4.976822857308842 9.0904e-07 au
i 6.254768309332095 1.098e-05 deg
node 302.3327156901984 7.974e-05 deg
peri 54.56240441108807 0.00017828 deg
M 8.506980023579695 0.00015197 deg
tp 2458900.223215636110
(2020-Feb-20.72321564)
0.0017939 TDB
period 4243.532049086659
11.62
0.00032141
8.8e-07
d
yr
n .08483499024768372 6.4255e-09 deg/d
Q 5.282437122960627 2.6673e-07 au
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      6852 days (18.76 yr)  
   first obs. used      2000-12-22  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .563  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:02  

Additional Information
 Earth MOID = 3.97605 au 
 Jupiter MOID = .0591009 au 
 T_jup = 2.987 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457590.5 (2016-Jul-21.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02852478161627388 1.4038e-07  
q 4.979153579543292 9.0628e-07 au
tp 2458895.571940132484
(2020-Feb-16.07194013)
0.0018772 TDB
node 302.3463267653762 7.9757e-05 deg
peri 54.06696458706868 0.00018487 deg
i 6.255018975122819 1.0981e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      152  
   data-arc span      6852 days (18.76 yr)  
   first obs. used      2000-12-22  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .563  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:11:02  

Additional Information
 Jupiter MOID = .0591009 au 
 T_jup = 2.987 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.970548703579531E-14 -1.245044627753383E-13 -1.016161624839996E-11 1.232552399281831E-14 2.522991787187971E-14 -1.188631245217946E-14
q -1.245044627753383E-13 8.213479404506255E-13 -1.124763601722202E-10 -2.743882749289125E-14 -1.674000047801361E-11 8.928318401982433E-14
tp -1.016161624839996E-11 -1.124763601722202E-10 3.523972829935718E-6 -5.01955909955664E-10 3.129074401981687E-7 -9.425980268699668E-11
node 1.232552399281831E-14 -2.743882749289125E-14 -5.01955909955664E-10 6.36112379279895E-9 -6.367941409651136E-9 4.620606877067906E-10
peri 2.522991787187971E-14 -1.674000047801361E-11 3.129074401981687E-7 -6.367941409651136E-9 3.417639340229149E-8 -4.685347328612186E-10
i -1.188631245217946E-14 8.928318401982433E-14 -9.425980268699668E-11 4.620606877067906E-10 -4.685347328612186E-10 1.205802088864363E-10

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 MPO455303  
diameter diameter 13.519 km 1.195 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.038   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

312461 (2008 RK14)          Discovered 2008-Sep-04 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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