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181711 (1993 SC9)
Classification: Main-belt Asteroid          SPK-ID: 2181711
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2023956829210931 1.4059e-07  
a 2.588889348874874 3.8155e-08 AU
q 2.0649093211022 3.7309e-07 AU
i 1.540269659452623 1.1274e-05 deg
node 193.9240286838887 0.0003739 deg
peri 200.4069789136593 0.00037641 deg
M 13.38039571760117 2.504e-05 deg
tp 2456943.949673481268
(2014-Oct-13.44967348)
0.00010643 JED
period 1521.488450447212
4.17
3.3636e-05
9.209e-08
d
yr
n .2366104060101047 5.2307e-09 deg/d
Q 3.112869376647549 4.5877e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      191  
   data-arc span      7739 days (21.19 yr)  
   first obs. used      1993-09-18  
   last obs. used      2014-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54183  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 08:58:10  

Additional Information
 Earth MOID = 1.07122 AU 
 T_jup = 3.391 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5 mag n/a MPO320844  

181711 (1993 SC9)          Discovered 1993-Sep-22 by Debehogne, H., Elst, E. W. at La Silla (809)
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1993 SC9 = 2000 JL4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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