Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05546784724758232 4.3278e-08  
a 2.380022386433339 7.9047e-09 au
q 2.248007668256828 1.0125e-07 au
i 6.904893114577193 4.6903e-06 deg
node 11.08656386505513 2.5735e-05 deg
peri 197.4971297837093 4.0118e-05 deg
M 223.996057563735 3.1931e-05 deg
tp 2459507.162762709382
(2021-Oct-19.66276271)
0.00011961 TDB
period 1341.127259313487
3.67
6.6813e-06
1.829e-08
d
yr
n .268430902063896 1.3373e-09 deg/d
Q 2.51203710460985 8.3431e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2738  
   data-arc span      25701 days (70.37 yr)  
   first obs. used      1949-09-24  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42988  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 16:11:35  

Additional Information
 Earth MOID = 1.24446 au 
 Jupiter MOID = 2.44931 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 12.1   n/a MPO502173  
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-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:
[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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-10 23:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin