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JPL Small-Body Database Browser
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379985 (2012 TM191)
Classification: Jupiter Trojan          SPK-ID: 2379985
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359583660268223 1.2473e-07  
a 5.19024965102867 3.6739e-07 au
q 4.484591789203527 9.1873e-07 au
i 8.072786022603108 1.2707e-05 deg
node 328.6387230187312 7.2769e-05 deg
peri 310.2817834267548 9.2771e-05 deg
M 318.7398026209747 6.2162e-05 deg
tp 2459495.505015339508
(2021-Oct-08.00501534)
0.00075909 TDB
period 4318.976079663935
11.82
0.00045857
1.255e-06
d
yr
n .08335308956562039 8.8501e-09 deg/d
Q 5.895907512853812 4.1734e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      5959 days (16.31 yr)  
   first obs. used      2002-12-31  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58659  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:56:07  

Additional Information
 Earth MOID = 3.47553 au 
 Jupiter MOID = .207932 au 
 T_jup = 2.962 
[ 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 14.0   n/a MPO434350  
diameter diameter 8.215 km 0.560 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.013   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

379985 (2012 TM191)          Discovered 2006-Jan-26 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

Alternate Designations
 2012 TM191 = 2010 HU63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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