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JPL Small-Body Database Browser
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172196 (2002 QT12)
Classification: Main-belt Asteroid          SPK-ID: 2172196
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05011763599538575 5.3111e-08  
a 2.581846999973402 1.7635e-08 au
q 2.452450931832957 1.3314e-07 au
i 5.987616048349905 5.816e-06 deg
node 186.3183153638635 4.6711e-05 deg
peri 54.59449878354491 6.9537e-05 deg
M 184.3830495409972 5.2673e-05 deg
tp 2459739.693452208155
(2022-Jun-09.19345221)
0.00022242 TDB
period 1515.284499015705
4.15
1.5525e-05
4.251e-08
d
yr
n .2375791478325344 2.4341e-09 deg/d
Q 2.711243068113848 1.8519e-08 au
  Orbit Determination Parameters
   # obs. used (total)      317  
   data-arc span      9179 days (25.13 yr)  
   first obs. used      1994-09-14  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51115  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 14:30:27  

Additional Information
 Earth MOID = 1.4463 au 
 Jupiter MOID = 2.27464 au 
 T_jup = 3.415 
[ 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 16.2   n/a MPO502962  

172196 (2002 QT12)          Discovered 2002-Aug-26 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 QT12 = 2005 EC195 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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