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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0757144751071014 5.7481e-08  
a 3.162151258641336 3.1989e-08 AU
q 2.922730635884047 1.8264e-07 AU
i 9.977953481011838 8.0167e-06 deg
node 152.6430860032125 3.5462e-05 deg
peri 153.749431018887 6.4068e-05 deg
M 63.6283204272212 5.2523e-05 deg
tp 2456637.488531438503
(2013-Dec-10.98853144)
0.00029976 JED
period 2053.867331475721
5.62
3.1166e-05
8.533e-08
d
yr
n .1752790915376881 2.6597e-09 deg/d
Q 3.401571881398625 3.4411e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      8483 days (23.23 yr)  
   first obs. used      1991-08-05  
   last obs. used      2014-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53225  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 00:31:34  

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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