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2752 Wu Chien-Shiung (1965 SP)
Classification: Main-belt Asteroid          SPK-ID: 2002752
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113737881229748 3.745e-08  
a 3.022665784682028 1.3823e-08 au
q 2.686020046012286 1.1252e-07 au
i 10.13208012207196 4.2886e-06 deg
node 186.2846837190322 2.1467e-05 deg
peri 198.5932686342487 2.7806e-05 deg
M 130.6292031958508 1.7931e-05 deg
tp 2458303.999553941600
(2018-Jul-04.49955394)
9.5212e-05 TDB
period 1919.480134967157
5.26
1.3167e-05
3.605e-08
d
yr
n .1875507818194533 1.2866e-09 deg/d
Q 3.359311523351769 1.5363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2671  
   data-arc span      31703 days (86.80 yr)  
   first obs. used      1933-08-26  
   last obs. used      2020-06-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44805  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:49:26  

Additional Information
 Earth MOID = 1.69116 au 
 Jupiter MOID = 2.10263 au 
 T_jup = 3.213 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.6   n/a MPO502179  
diameter diameter 15.484 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 36.343 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.203   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2752 Wu Chien-Shiung (1965 SP)          Discovered 1965-Sep-20 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1965 SP = 1933 QW = 1960 VA = 1970 RD = 1978 EG7 = 1979 HN4 = 1981 TO4 = 1981 UY9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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