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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07560417103536192 5.4937e-08  
a 3.161087274077337 3.0129e-08 au
q 2.922095891150289 1.7147e-07 au
i 9.978098238579809 7.2015e-06 deg
node 152.6437977185161 3.408e-05 deg
peri 153.3917360012202 5.9826e-05 deg
M 169.2195497412936 4.9486e-05 deg
tp 2456635.558042332378
(2013-Dec-09.05804233)
0.00028067 JED
period 2052.830806437107
5.62
2.9349e-05
8.035e-08
d
yr
n .1753675942854813 2.5072e-09 deg/d
Q 3.400078657004386 3.2407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      938  
   data-arc span      8985 days (24.60 yr)  
   first obs. used      1991-08-05  
   last obs. used      2016-03-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53726  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:04:55  

Additional Information
 Earth MOID = 1.91116 au 
 Jupiter MOID = 1.88825 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 13.4 mag n/a MPO365367  

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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