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9452 Rogerpeeters (1998 DY33)
Classification: Main-belt Asteroid          SPK-ID: 2009452
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2988094205221377 9.5549e-08  
a 2.597507960834891 2.8326e-08 AU
q 1.821348112256178 2.6503e-07 AU
i 4.03805114171258 7.0122e-06 deg
node 129.6902185792428 0.00011677 deg
peri 302.7843861169736 0.00011868 deg
M 15.53897560756841 1.8389e-05 deg
tp 2456734.498524896621
(2014-Mar-17.99852490)
7.748e-05 JED
period 1529.092498584237
4.19
2.5012e-05
6.848e-08
d
yr
n .2354337624004555 3.8512e-09 deg/d
Q 3.373667809413604 3.679e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      699  
   data-arc span      12112 days (33.16 yr)  
   first obs. used      1981-01-03  
   last obs. used      2014-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5582  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:32:47  

Additional Information
 Earth MOID = .839058 AU 
 T_jup = 3.348 
[ 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 14.5 mag n/a MPO279615  

9452 Rogerpeeters           Discovered 1998 Feb. 27 by E. W. Elst at the European Southern Observatory.
Named in honor of Roger Peeters (b. 1948), head of the mechanical workshop at the Royal Observatory at Uccle and responsible for maintaining all the telescopes. He was always available for keeping the Zeiss measuring instrument in good repair, and this was used in particular for measuring this minor planet.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1998 DY33 = 1981 AG1 = 1984 YZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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