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7973 Koppeschaar (1344 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2007973
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08858828720440061 6.254e-08  
a 2.869452223429027 2.0098e-08 AU
q 2.615252365740591 1.7925e-07 AU
i 2.326706574183456 7.9216e-06 deg
node 137.7210950932975 0.00016707 deg
peri 315.694374592763 0.00017792 deg
M 50.36170620721833 5.6352e-05 deg
tp 2456552.132447043931
(2013-Sep-16.63244704)
0.00027854 JED
period 1775.40289632541
4.86
1.8652e-05
5.107e-08
d
yr
n .2027708756953703 2.1303e-09 deg/d
Q 3.123652081117464 2.1878e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      728  
   data-arc span      23041 days (63.08 yr)  
   first obs. used      1951-02-04  
   last obs. used      2014-03-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59062  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:51:48  

Additional Information
 Earth MOID = 1.63202 AU 
 T_jup = 3.292 
[ 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 14.0 mag n/a MPO279599  

7973 Koppeschaar           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Carl Egon Koppeschaar is a science writer and reporter in the Netherlands. He is internationally known for popularizing astrophysics and space science, for debunking pseudoscience, and for taking action against light pollution. His Moon Handbook: a 21st-Century Travel Guide is a delight.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000124/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1344 T-2 = 1990 EO5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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