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JPL Small-Body Database Browser
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9707 Petruskoning (3226 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2009707
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1434859120286645 3.7513e-08  
a 2.604669291315854 1.1104e-08 au
q 2.230935942518343 9.8125e-08 au
i 11.11680075107029 5.8994e-06 deg
node 32.35722594225602 1.8489e-05 deg
peri 58.55959368234964 2.9738e-05 deg
M 260.2458309852147 2.1212e-05 deg
tp 2459025.957188583081
(2020-Jun-25.45718858)
9.1055e-05 TDB
period 1535.420418039948
4.20
9.8184e-06
2.688e-08
d
yr
n .2344634705715068 1.4993e-09 deg/d
Q 2.978402640113364 1.2697e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1459  
   data-arc span      14886 days (40.76 yr)  
   first obs. used      1977-10-07  
   last obs. used      2018-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51579  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 16:53:16  

Additional Information
 Earth MOID = 1.26907 au 
 Jupiter MOID = 2.31389 au 
 T_jup = 3.372 
[ 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 13.7   n/a MPO416819  
diameter diameter 9.286 km 0.172 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9707 Petruskoning           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Petrus A. Koning (b. 1934) has organized youth astronomy camps. Founder of the Bussloo Public Observatory, he was long a member of the observatory board. In 1995 he received the Van der Bilt Prize for his efforts to promote astronomy in the Dutch province of Gelderland. The name was suggested by W. A. Fröger.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 3226 T-3 = 1992 GR3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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