Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
9860 Archaeopteryx (1991 PW9)
Classification: Main-belt Asteroid          SPK-ID: 2009860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07197460186066988 3.237e-08  
a 3.163233803572319 1.6013e-08 au
q 2.935561309967989 9.9254e-08 au
i 9.969849346604923 3.9818e-06 deg
node 152.4333632672144 1.9966e-05 deg
peri 152.77264706 3.4813e-05 deg
M 124.5402161015269 2.7815e-05 deg
tp 2458685.609876374033
(2019-Jul-21.10987637)
0.00015904 TDB
period 2054.922116858367
5.63
1.5604e-05
4.272e-08
d
yr
n .1751891213037212 1.3303e-09 deg/d
Q 3.390906297176649 1.7166e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1979  
   data-arc span      10779 days (29.51 yr)  
   first obs. used      1991-08-05  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4883  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 16:11:18  

Additional Information
 Earth MOID = 1.92456 au 
 Jupiter MOID = 1.89238 au 
 T_jup = 3.177 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.37   n/a E2021B10  
diameter diameter 12.382 km 0.189 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.080   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-02 06:33 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin