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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1750386112839885 5.5914e-08  
a 2.371835512565951 1.5343e-08 AU
q 1.95667271825236 1.3058e-07 AU
i 1.56806780365508 6.0184e-06 deg
node 110.1329164292388 0.00022745 deg
peri 142.7024729365797 0.00022842 deg
M 336.0037348150627 1.9089e-05 deg
tp 2457089.433714063596
(2015-Mar-07.93371406)
7.094e-05 JED
period 1334.213337623535
3.65
1.2947e-05
3.545e-08
d
yr
n .269821916666807 2.6182e-09 deg/d
Q 2.786998306879542 1.8029e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      8019 days (21.95 yr)  
   first obs. used      1993-07-12  
   last obs. used      2015-06-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55298  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:31:08  

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  
rotation period rot_per 4.21 h n/a LCDB (Rev. 2015-July); Warner et al., 2009 Incomplete or inconclusive result.
Published Reference List:
[Chang, C.K.; Ip, W.-H.; Lin, H.-W.; Cheng, Y.C.; et al. (2015) arXiv:1506.08493.]

22501 (1997 PR3)          Discovered 1997-Aug-05 by Beijing Schmidt CCD Asteroid Program at Xinglong
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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