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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06455011023957302 7.3151e-08  
a 2.530714220046374 2.1749e-08 AU
q 2.367356338157526 1.8543e-07 AU
i 4.896662330117837 6.7402e-06 deg
node 56.17194475597694 9.4008e-05 deg
peri 350.0670171981435 0.00012608 deg
M 290.209441833625 8.5316e-05 deg
tp 2457085.573767855349
(2015-Mar-04.07376786)
0.00034996 JED
period 1470.493418082029
4.03
1.8956e-05
5.19e-08
d
yr
n .2448157846701208 3.156e-09 deg/d
Q 2.694072101935223 2.3153e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1062  
   data-arc span      12667 days (34.68 yr)  
   first obs. used      1978-10-28  
   last obs. used      2013-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54639  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:26:52  

Additional Information
 Earth MOID = 1.37572 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 13.6 mag n/a MPO266026  

12705 (1990 TJ)          Discovered 1990-Oct-12 by McNaught, R. H. at Siding Spring (413)
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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