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231678 (1995 QC1)
Classification: Main-belt Asteroid          SPK-ID: 2231678
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1878685550580734 8.937e-08  
a 2.22467897787764 2.0248e-08 AU
q 1.806731752835696 1.9406e-07 AU
i 5.165057472937103 9.2299e-06 deg
node 160.3330290427866 9.8401e-05 deg
peri 230.0117253755438 0.00010148 deg
M 254.7045058723576 2.6585e-05 deg
tp 2457354.992245552254
(2015-Nov-28.49224555)
9.2039e-05 JED
period 1211.991163117673
3.32
1.6547e-05
4.53e-08
d
yr
n .297031868676296 4.0552e-09 deg/d
Q 2.642626202919584 2.4052e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      7303 days (19.99 yr)  
   first obs. used      1995-08-19  
   last obs. used      2015-08-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48784  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 19:19:29  

Additional Information
 Earth MOID = .816466 AU 
 T_jup = 3.618 
[ 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 17.3 mag n/a MPO254399  

231678 (1995 QC1)          Discovered 1995-Aug-19 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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