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390326 (2013 BR17)
Classification: Jupiter Trojan          SPK-ID: 2390326
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 .04390096912323324 4.5543e-07  
a 5.233525808595592 3.6286e-06 au
q 5.003768953666792 1.656e-06 au
i 8.053061078430241 1.2962e-05 deg
node 242.8882108863714 0.0001082 deg
peri 175.3298422700342 0.00096944 deg
M 274.5023881803527 0.0011964 deg
tp 2460039.083611418529
(2023-Apr-04.58361142)
0.015603 TDB
period 4373.105776327083
11.97
0.0045481
1.245e-05
d
yr
n .08232135658569859 8.5616e-08 deg/d
Q 5.463282663524391 3.7879e-06 au
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      2397 days (6.56 yr)  
   first obs. used      2009-09-19  
   last obs. used      2016-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .66858  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 21:40:55  

Additional Information
 Earth MOID = 4.01611 au 
 Jupiter MOID = .0474595 au 
 T_jup = 2.978 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456519.5 (2013-Aug-15.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04001342627213503 4.7169e-07  
q 5.06503683839073 1.6959e-06 au
tp 2455695.727245253605
(2011-May-14.22724525)
0.01156 TDB
node 243.0608586136579 0.00010814 deg
peri 179.1481990102644 0.001001 deg
i 8.035683860734416 1.2944e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      50  
   data-arc span      2397 days (6.56 yr)  
   first obs. used      2009-09-19  
   last obs. used      2016-04-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .66858  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 21:40:55  

Additional Information
 Jupiter MOID = .0474595 au 
 T_jup = 2.978 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.22493189723524E-13 4.350248704294854E-13 4.844925869207975E-9 2.266367796445836E-12 4.154672869411608E-10 1.229177896873397E-13
q 4.350248704294854E-13 2.876195530286946E-12 1.622508829228625E-8 5.792202742116185E-12 1.409827882530299E-9 4.640138729433928E-13
tp 4.844925869207975E-9 1.622508829228625E-8 .0001336337429004257 5.504765309750371E-8 1.150337437906654E-5 3.01788858080773E-9
node 2.266367796445836E-12 5.792202742116185E-12 5.504765309750371E-8 1.169405446043215E-8 -6.82559560511456E-9 1.818099770571184E-10
peri 4.154672869411608E-10 1.409827882530299E-9 1.150337437906654E-5 -6.82559560511456E-9 1.00197221890189E-6 8.338296306852184E-11
i 1.229177896873397E-13 4.640138729433928E-13 3.01788858080773E-9 1.818099770571184E-10 8.338296306852184E-11 1.675520094983907E-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 14.3   n/a MPO476837  

390326 (2013 BR17)          Discovered 2009-Sep-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

Alternate Designations
 2013 BR17 = 2009 SG148 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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