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9860 Archaeopteryx (1991 PW9)
Classification: Main-belt Asteroid          SPK-ID: 2009860
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO229125 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.0760365 n/a  
a 3.1634776 n/a AU
q 2.9229378 n/a AU
i 9.97569 n/a deg
node 152.64920 n/a deg
peri 154.02684 n/a deg
M 318.24495 n/a deg
tp 2456638.8702652
(2013-Dec-12.37026520)		 n/a JED
period 2055.1596868
5.63		 n/a
n/a		 d
yr
n 0.17516887 n/a deg/d
Q 3.4040174 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      717  
   first obs. used      1991-??-??  
   last obs. used      2012-04-30  
   # oppositions      16  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.58  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.176 

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a PDS3 (MPC 33459)  

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

Alternate Designations
 1991 PW9 = 1995 DY10 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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