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22501 (1997 PR3)
Classification: Main-belt Asteroid          SPK-ID: 2022501
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1750385762601732 6.0849e-08  
a 2.371835527853663 1.71e-08 AU
q 1.956672813934861 1.4509e-07 AU
i 1.56806762000936 6.0217e-06 deg
node 110.1328391246825 0.0002469 deg
peri 142.7025566500066 0.00024788 deg
M 336.0037188204721 2.1508e-05 deg
tp 2457089.433774201755
(2015-Mar-07.93377420)
8.0078e-05 JED
period 1334.213350523082
3.65
1.4429e-05
3.95e-08
d
yr
n .2698219140580934 2.918e-09 deg/d
Q 2.786998241772464 2.0093e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      602  
   data-arc span      7615 days (20.85 yr)  
   first obs. used      1993-07-12  
   last obs. used      2014-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56154  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 14:11:49  

Additional Information
 Earth MOID = .944023 AU 
 T_jup = 3.523 
[ 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 15.6 mag n/a MPO244382  

22501 (1997 PR3)          Discovered 1997-Aug-05 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 PR3 = 1993 OQ11 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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