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JPL Small-Body Database Browser
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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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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05574348155109518 4.3384e-08  
a 2.37949878672574 8.1486e-09 au
q 2.24685724000704 1.0142e-07 au
i 6.905830106308946 4.7254e-06 deg
node 11.08977212526976 2.7222e-05 deg
peri 197.5364569434868 4.1824e-05 deg
M 116.5535959890727 3.238e-05 deg
tp 2458166.439931262449
(2018-Feb-16.93993126)
0.00012022 TDB
period 1340.684716069752
3.67
6.8868e-06
1.886e-08
d
yr
n .2685195077447801 1.3793e-09 deg/d
Q 2.51214033344444 8.6028e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2533  
   data-arc span      25604 days (70.10 yr)  
   first obs. used      1949-09-24  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43988  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:11:41  

Additional Information
 Earth MOID = 1.24354 au 
 Jupiter MOID = 2.4504 au 
 T_jup = 3.527 
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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 12.0   n/a MPO435716  
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. 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:
[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

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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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