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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1287512514990159 3.2905e-08  
a 3.147625198660669 1.5776e-08 au
q 2.742364515083269 1.0501e-07 au
i 2.494903424355656 3.6235e-06 deg
node 56.32373939327969 9.0835e-05 deg
peri 70.41671911317886 9.1996e-05 deg
M 237.6114002027819 1.5372e-05 deg
tp 2459693.944028241359
8.9028e-05 TDB
period 2039.731237880895
n .1764938406169672 1.3269e-09 deg/d
Q 3.552885882238069 1.7807e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2661  
   data-arc span      23688 days (64.85 yr)  
   first obs. used      1955-02-23  
   last obs. used      2020-01-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46425  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:15:12  

Additional Information
 Earth MOID = 1.75892 au 
 Jupiter MOID = 1.50779 au 
 T_jup = 3.194 
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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] (  
rotation period rot_per 5.99 h n/a LCDB (Rev. 2019-August); 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,]
[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] (  

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

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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 ]
FirstGov 2020-Apr-03 17:31 UT
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