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2045 Peking (1964 TB1)
Classification: Main-belt Asteroid          SPK-ID: 2002045
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05533081691606891 1.6601e-08  
a 2.380318900870191 6.6158e-09 au
q 2.248613911564284 4.0058e-08 au
i 6.904748970424881 2.6646e-07 deg
node 11.07969387295116 7.6938e-06 deg
peri 197.42183642449 1.8591e-05 deg
M 277.7482846139126 1.5406e-05 deg
tp 2459506.973979685008
(2021-Oct-19.47397968)
5.7825e-05 TDB
period 1341.377893077536
3.67
5.5923e-06
1.531e-08
d
yr
n .268380746289212 1.1189e-09 deg/d
Q 2.512023890176098 6.9818e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3185  
   data-arc span      26104 days (71.47 yr)  
   first obs. used      1949-09-24  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40833  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:16:51  

Additional Information
 Earth MOID = 1.24416 au 
 Jupiter MOID = 2.44817 au 
 T_jup = 3.527 
[ 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 12.19   n/a E2021B10  
diameter diameter 9.664 km 0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 82.4 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:
[Stephens, R.D. (2017) Minor Planet Bull. 44, 120-122.]
geometric albedo albedo 0.249   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
SMASSII spectral type spec_B V   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2045 Peking (1964 TB1)          Discovered 1964-Oct-08 by Purple Mountain Observatory at Nanking
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1964 TB1 = 1944 DJ = 1949 ST = 1964 US = 1973 AE = 1975 TC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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