Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08842745860844035 5.816e-08  
a 2.868365191639489 2.5622e-08 AU
q 2.614722947381897 1.6834e-07 AU
i 2.32694160372828 7.4461e-06 deg
node 137.7240989019993 0.00015685 deg
peri 315.4728227051033 0.00016718 deg
M 91.15438464064775 5.3153e-05 deg
tp 2456551.211652528423
(2013-Sep-15.71165253)
0.00026381 JED
period 1774.394130654278
4.86
2.3775e-05
6.509e-08
d
yr
n .202886153521741 2.7184e-09 deg/d
Q 3.122007435897082 2.7888e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      776  
   data-arc span      23386 days (64.03 yr)  
   first obs. used      1951-02-04  
   last obs. used      2015-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:11:29  

Additional Information
 Earth MOID = 1.63182 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-May-25 15:31 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin