Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
12705 (1990 TJ)
Classification: Main-belt Asteroid          SPK-ID: 2012705
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06443588846042167 7.0891e-08  
a 2.530295955521954 1.5551e-08 AU
q 2.367254087560085 1.826e-07 AU
i 4.896831947120368 6.2666e-06 deg
node 56.16816422673265 9.3134e-05 deg
peri 350.1657206634991 0.00012409 deg
M 339.0819811658104 8.2314e-05 deg
tp 2457085.922732154430
(2015-Mar-04.42273215)
0.00033638 JED
period 1470.128878808147
4.02
1.3553e-05
3.711e-08
d
yr
n .2448764902107472 2.2575e-09 deg/d
Q 2.693337823483823 1.6553e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1119  
   data-arc span      13123 days (35.93 yr)  
   first obs. used      1978-10-28  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53971  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:23:27  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-23 17:53 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin