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17693 Wangdaheng (1997 CP28)
Classification: Main-belt Asteroid          SPK-ID: 2017693
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09324067723330723 3.9882e-08  
a 2.990676189940129 2.0463e-08 au
q 2.711823516604584 1.2125e-07 au
i 10.11479622985561 7.1713e-06 deg
node 320.2251062479614 2.6876e-05 deg
peri 113.1721966602512 5.1655e-05 deg
M 242.3864507491841 4.3937e-05 deg
tp 2459617.673644345955
(2022-Feb-07.17364435)
0.00023264 TDB
period 1889.089423623551
5.17
1.9388e-05
5.308e-08
d
yr
n .1905680035566909 1.9559e-09 deg/d
Q 3.269528863275673 2.2371e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1015  
   data-arc span      10336 days (28.30 yr)  
   first obs. used      1992-02-29  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57254  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:13:40  

Additional Information
 Earth MOID = 1.74676 au 
 Jupiter MOID = 1.9559 au 
 T_jup = 3.226 
[ 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 13.7   n/a MPO347662  
diameter diameter 5.954 km 0.390 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.217   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17693 Wangdaheng           Discovered 1997 Feb. 15 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Daheng Wang (b. 1915), research professor, director and honorary director of Changchun Institute of Optics and Fine Mechanics, is one of the founders of optical science and technology in China. He became a member of the Chinese Academy of Sciences in 1955.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1997 CP28 = 1992 DE9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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