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22472 (1997 CT28)
Classification: Main-belt Asteroid          SPK-ID: 2022472
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1155609503279514 3.354e-08  
a 2.445754986551187 1.0255e-08 au
q 2.163121216036005 8.4666e-08 au
i 6.045686638977348 4.0378e-06 deg
node 145.116661987646 3.4015e-05 deg
peri 125.9455112480663 3.882e-05 deg
M 322.5356287238016 2.1713e-05 deg
tp 2459345.889752185488
(2021-May-11.38975219)
8.4731e-05 TDB
period 1397.068975238031
3.82
8.787e-06
2.406e-08
d
yr
n .25768233808117 1.6207e-09 deg/d
Q 2.728388757066368 1.144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1404  
   data-arc span      9978 days (27.32 yr)  
   first obs. used      1992-12-26  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52743  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:06:46  

Additional Information
 Earth MOID = 1.15169 au 
 Jupiter MOID = 2.37094 au 
 T_jup = 3.482 
[ 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 15.13   n/a E2021B10  
diameter diameter 2.660 km 0.458 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.158   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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