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382253 (2012 TK26)
Classification: Jupiter Trojan          SPK-ID: 2382253
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09333232671923618 8.7778e-08  
a 5.313958458772656 3.0391e-07 au
q 4.817994351726037 6.8036e-07 au
i 23.69295611287457 7.7118e-06 deg
node 64.74401565182264 1.4491e-05 deg
peri 286.9128012066553 4.8706e-05 deg
M 254.6427985193425 5.5117e-05 deg
tp 2460309.945371695497
(2023-Dec-31.44537170)
0.00077437 TDB
period 4474.305763492811
12.25
0.00038383
1.051e-06
d
yr
n .08045940957753646 6.9022e-09 deg/d
Q 5.809922565819273 3.3227e-07 au
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      2001-11-16  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:41:55  

Additional Information
 Earth MOID = 3.90544 au 
 Jupiter MOID = .0667722 au 
 T_jup = 2.822 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457163.5 (2015-May-21.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09551762441492737 8.7467e-08  
q 4.793879740171737 6.7319e-07 au
tp 2455868.484997495093
(2011-Nov-02.98499750)
0.00049449 TDB
node 64.8059378969303 1.4516e-05 deg
peri 288.3901120932854 4.783e-05 deg
i 23.70468184236586 7.71e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      226  
   data-arc span      6737 days (18.44 yr)  
   first obs. used      2001-11-16  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 00:41:55  

Additional Information
 Jupiter MOID = .0667722 au 
 T_jup = 2.822 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.650557675392757E-15 -5.589211025937728E-14 1.844680071992961E-12 -5.325085832838754E-14 -4.996061229300606E-13 -1.136658406736523E-14
q -5.589211025937728E-14 4.531828866889053E-13 5.90526471094532E-11 4.914738050194119E-13 1.095348399664147E-11 6.795357346655054E-14
tp 1.844680071992961E-12 5.90526471094532E-11 2.445214590948821E-7 1.963555008097983E-10 2.221262031880838E-8 -7.535336041276348E-11
node -5.325085832838754E-14 4.914738050194119E-13 1.963555008097983E-10 2.107036429443144E-10 -1.684047825457946E-10 -5.360686038899004E-11
peri -4.996061229300606E-13 1.095348399664147E-11 2.221262031880838E-8 -1.684047825457946E-10 2.28775584680645E-9 4.331685587173554E-11
i -1.136658406736523E-14 6.795357346655054E-14 -7.535336041276348E-11 -5.360686038899004E-11 4.331685587173554E-11 5.944395753086839E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO402528  

382253 (2012 TK26)          Discovered 2001-Nov-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2013-12-19

Alternate Designations
 2012 TK26 = 2010 HF81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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