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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06461484425023932 5.5037e-08  
a 2.531799055862664 1.2061e-08 au
q 2.368207254195195 1.3779e-07 au
i 4.897090174411351 4.355e-06 deg
node 56.13233827525463 7.4996e-05 deg
peri 350.9213756658139 0.0001086 deg
M 125.239633765617 7.7477e-05 deg
tp 2457088.604201000728
(2015-Mar-07.10420100)
0.00031632 JED
period 1471.439049275873
4.03
1.0514e-05
2.879e-08
d
yr
n .2446584519944362 1.7482e-09 deg/d
Q 2.695390857530132 1.284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1496  
   data-arc span      13688 days (37.48 yr)  
   first obs. used      1978-10-28  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51608  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:14:52  

Additional Information
 Earth MOID = 1.37642 au 
 Jupiter MOID = 2.54532 au 
 T_jup = 3.442 
[ 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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