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JPL Small-Body Database Browser
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347444 (2012 TJ189)
Classification: Main-belt Asteroid          SPK-ID: 2347444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1048450861669842 8.6016e-08  
a 2.665105435510545 3.4566e-08 au
q 2.385682226480343 2.4325e-07 au
i 3.864203912821443 9.2848e-06 deg
node 39.38426703813573 0.00010042 deg
peri 296.8677682364263 0.00010933 deg
M 313.2860488222491 3.9254e-05 deg
tp 2459206.712088686901
(2020-Dec-23.21208869)
0.00017358 TDB
period 1589.168761272372
4.35
3.0917e-05
8.465e-08
d
yr
n .2265335241750945 4.4071e-09 deg/d
Q 2.944528644540746 3.819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      113  
   data-arc span      7115 days (19.48 yr)  
   first obs. used      1999-10-31  
   last obs. used      2019-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 14:49:03  

Additional Information
 Earth MOID = 1.37934 au 
 Jupiter MOID = 2.39073 au 
 T_jup = 3.373 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO471608  

347444 (2012 TJ189)          Discovered 1999-Oct-31 by Spacewatch at Kitt Peak
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2012 TJ189 = 1999 UN34 = 2008 XY32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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