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12705 (1990 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2012705
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06443558294902965 6.5956e-08  
a 2.530789547696049 1.3329e-08 au
q 2.367716647868944 1.6884e-07 au
i 4.896593010740931 5.827e-06 deg
node 56.16069142666939 8.4041e-05 deg
peri 350.4779021389624 0.00011616 deg
M 76.74337239303689 7.9185e-05 deg
tp 2457087.012048377658
(2015-Mar-05.51204838)
0.00032298 JED
period 1470.55907324556
4.03
1.1618e-05
3.181e-08
d
yr
n .2448048545275173 1.934e-09 deg/d
Q 2.693862447523156 1.4188e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1337  
   data-arc span      13562 days (37.13 yr)  
   first obs. used      1978-10-28  
   last obs. used      2015-12-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52427  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:21:42  

Additional Information
 Earth MOID = 1.37611 au 
 Jupiter MOID = 2.54765 au 
 T_jup = 3.443 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7 mag n/a MPO358753  

12705 (1990 TJ)          Discovered 1990-Oct-12 by McNaught, R. H. at Siding Spring
Reference: 19991222/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 TJ = 1978 UP = 1982 UR1 = 1986 UK2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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