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22472 (1997 CT28)
Classification: Main-belt Asteroid          SPK-ID: 2022472
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1165180016110785 5.0869e-08  
a 2.4456531888268 1.7922e-08 AU
q 2.16069056663094 1.293e-07 AU
i 6.046886799182832 6.9548e-06 deg
node 145.1498846404326 6.4363e-05 deg
peri 125.7038607641491 7.4375e-05 deg
M 116.0713240402276 3.5727e-05 deg
tp 2456550.084662019907
(2013-Sep-14.58466202)
0.00013782 JED
period 1396.981752501044
3.82
1.5356e-05
4.204e-08
d
yr
n .2576984268802974 2.8326e-09 deg/d
Q 2.73061581102266 2.001e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      757  
   data-arc span      7950 days (21.77 yr)  
   first obs. used      1992-12-26  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50757  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:46:23  

Additional Information
 Earth MOID = 1.15257 AU 
 T_jup = 3.482 
[ 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 15.0 mag n/a MPO267790  

22472 (1997 CT28)          Discovered 1997-Feb-06 by Beijing Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 CT28 = 1999 WH26 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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