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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06443588624951915 7.062e-08  
a 2.530295960063615 1.4367e-08 AU
q 2.367254097403338 1.8192e-07 AU
i 4.896832290733258 6.2389e-06 deg
node 56.16816970882485 8.8898e-05 deg
peri 350.1657284606568 0.00012038 deg
M 339.0819662677804 8.0623e-05 deg
tp 2457085.922793223376
(2015-Mar-04.42279322)
0.00032942 JED
period 1470.128882766277
4.02
1.2521e-05
3.428e-08
d
yr
n .2448764895514492 2.0857e-09 deg/d
Q 2.693337822723892 1.5293e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      13256 days (36.29 yr)  
   first obs. used      1978-10-28  
   last obs. used      2015-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52445  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:32:03  

Additional Information
 Earth MOID = 1.37653 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
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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