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392741 (2012 SQ31 = 2004 PR107)
Classification: Main-belt Asteroid          SPK-ID: 2392741
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 .142023729582293 1.8796e-07  
a 2.259852005915226 3.9746e-08 AU
q 1.93889939573112 4.158e-07 AU
i 3.854455827551245 1.196e-05 deg
node 78.02497778831287 0.00025405 deg
peri 316.8651490627954 0.00025933 deg
M 220.4227808067436 4.7784e-05 deg
tp 2457481.594581954398
(2016-Apr-03.09458195)
0.00016423 JED
period 1240.847543063468
3.40
3.2736e-05
8.963e-08
d
yr
n .2901242799830298 7.654e-09 deg/d
Q 2.580804616099333 4.5391e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      61  
   data-arc span      4138 days (11.33 yr)  
   first obs. used      2002-12-05  
   last obs. used      2014-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .68543  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-13 00:00:05  

Additional Information
 Earth MOID = .947563 AU 
 T_jup = 3.604 
[ 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 17.8 mag n/a E2014E16  

392741 (2012 SQ31)          Discovered 2009-Dec-27 by Spacewatch at Kitt Peak (691)
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 SQ31 = 2004 PR107 = 2009 YS20 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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