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2197 Shanghai (1965 YN)
Classification: Main-belt Asteroid          SPK-ID: 2002197
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .127953680146492 3.2895e-08  
a 3.149673566361287 1.6071e-08 au
q 2.746661242285234 1.0514e-07 au
i 2.495051078256405 3.6324e-06 deg
node 56.34450411747803 9.0789e-05 deg
peri 70.44528001315275 9.1975e-05 deg
M 166.9547551947085 1.5322e-05 deg
tp 2457653.624155163748
(2016-Sep-22.12415516)
8.5115e-05 TDB
period 2041.722643619883
5.59
1.5627e-05
4.278e-08
d
yr
n .1763216963503603 1.3495e-09 deg/d
Q 3.55268589043734 1.8128e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2637  
   data-arc span      23654 days (64.76 yr)  
   first obs. used      1955-02-23  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:32:14  

Additional Information
 Earth MOID = 1.76358 au 
 Jupiter MOID = 1.50911 au 
 T_jup = 3.194 
[ 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 11.4   n/a MPO431519  
diameter diameter 20.198 km 0.136 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.99 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.119   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2197 Shanghai           Discovered 1965 Dec. 30 at the Purple Mountain Observatory.
Named for the largest city in China, one of the best known ports in the world, located at the mouth of the Yangtze River.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 6059Last Updated: 2006-03-21

[ show close-approach data ]
Alternate Designations
 1965 YN = 1942 VN = 1955 DA = 1964 UN = 1967 JT = 1975 SD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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