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345971 Marktorrence (2007 TG105)
Classification: Main-belt Asteroid          SPK-ID: 2345971
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06803621373814384 1.5231e-07  
a 2.769983358389542 1.3167e-07 AU
q 2.58152417856705 5.1567e-07 AU
i 3.691065430895992 1.3114e-05 deg
node 286.9428088305287 0.00018541 deg
peri 25.20954007220077 0.00021497 deg
M 268.0467724072671 0.0001085 deg
tp 2457430.609112371950
(2016-Feb-12.10911237)
0.00052077 JED
period 1683.891740480232
4.61
0.00012007
3.287e-07
d
yr
n .213790466064838 1.5244e-08 deg/d
Q 2.958442538212035 1.4063e-07 AU
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      2797 days (7.66 yr)  
   first obs. used      2007-10-14  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61783  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 17:04:06  

Additional Information
 Earth MOID = 1.56869 AU 
 T_jup = 3.331 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9 mag n/a MPO339107  

345971 Marktorrence           Discovered 2007 Oct. 14 by D. R. Skillman at the CBA-NOVAC Observatory, Front Royal.
Mark H. Torrence (b. 1952) is a planetary scientist and a contributor to the data analysis of the MLA laser altimeter on the MESSENGER Mercury mission and the LOLA altimeter at the Moon. He has published on the lunar crater Shackleton, and the topography and the internal structure of Mercury.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-04-25Last Updated: 2013-04-29

Alternate Designations
 2007 TG105 = 2010 BS74 = 2010 NF114 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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