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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0644358871555611 7.0687e-08  
a 2.530295959659599 1.4405e-08 AU
q 2.3672540947328 1.8213e-07 AU
i 4.896832192496265 6.2418e-06 deg
node 56.16817618595169 8.9187e-05 deg
peri 350.1657199248337 0.00012067 deg
M 339.0819684740795 8.0822e-05 deg
tp 2457085.922784193072
(2015-Mar-04.42278419)
0.00033024 JED
period 1470.12888241417
4.02
1.2554e-05
3.437e-08
d
yr
n .244876489610099 2.0911e-09 deg/d
Q 2.693337824586397 1.5333e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      13232 days (36.23 yr)  
   first obs. used      1978-10-28  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53164  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:35:41  

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 (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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