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3543 Ningbo (1964 VA3)
Classification: Main-belt Asteroid          SPK-ID: 2003543
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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1712148479380924 2.7647e-08  
a 3.177798395918712 1.464e-08 au
q 2.633712126783576 8.5233e-08 au
i 1.046701351075052 4.0853e-06 deg
node 162.7561825501799 0.00017002 deg
peri 109.2303383024983 0.00017048 deg
M 52.28332922223925 1.2968e-05 deg
tp 2458699.997096556542
(2019-Aug-04.49709656)
7.4165e-05 TDB
period 2069.130769767986
5.66
1.4299e-05
3.915e-08
d
yr
n .1739861033724646 1.2023e-09 deg/d
Q 3.721884665053848 1.7147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3052  
   data-arc span      24834 days (67.99 yr)  
   first obs. used      1952-11-16  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:12:48  

Additional Information
 Earth MOID = 1.61771 au 
 Jupiter MOID = 1.39093 au 
 T_jup = 3.177 
[ 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 12.0   n/a MPO452213  
diameter diameter 21.677 km 0.363 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.40 h n/a LCDB (Rev. 2020-October); 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:
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.094   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3543 Ningbo           Discovered 1964 Nov. 11 at the Purple Mountain Observatory.
Named for the historic Chinese port city, birthplace of the Neolithic Hemudu culture, dating back 7000 years and symbolized by oars and rice. It is also a birthplace of modern Chinese industry.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1964 VA3 = 1975 VF3 = 1980 PK = 1980 RJ3 = 1981 UE18 = 1981 UE6 = 1984 FB2 = 1986 TA15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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