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9860 Archaeopteryx (1991 PW9)
Classification: Main-belt Asteroid          SPK-ID: 2009860
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07571447535925881 5.7365e-08  
a 3.162151258610348 3.185e-08 AU
q 2.922730635058046 1.8208e-07 AU
i 9.977953964678075 8.0047e-06 deg
node 152.6430828405522 3.5354e-05 deg
peri 153.7494343910235 6.3992e-05 deg
M 63.62832019866359 5.2496e-05 deg
tp 2456637.488532747803
(2013-Dec-10.98853275)
0.00029962 JED
period 2053.86733144553
5.62
3.103e-05
8.496e-08
d
yr
n .1752790915402646 2.6482e-09 deg/d
Q 3.401571882162651 3.4261e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      8512 days (23.30 yr)  
   first obs. used      1991-08-05  
   last obs. used      2014-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53315  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:20:01  

Additional Information
 Earth MOID = 1.91316 AU 
 T_jup = 3.177 
[ 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 13.3 mag n/a MPO302126  

9860 Archaeopteryx           Discovered 1991 Aug. 6 by E. W. Elst at the European Southern Observatory.
Archaeopteryx is the early bird that had a dinosaur-like skeleton, a bird-like skull and teeth in the jaws. It lived during the Upper Jurassic. Feathers were preserved as impressions in rocks.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021120/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1991 PW9 = 1995 DY10 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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