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6742 Biandepei (1994 GR)
Classification: Main-belt Asteroid          SPK-ID: 2006742
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1717416005549131 3.3758e-08  
a 2.333479297130476 7.918e-09 au
q 1.932723827779535 7.9472e-08 au
i 5.461213325561945 3.3654e-06 deg
node 103.0520905429039 4.2408e-05 deg
peri 150.2102833449738 4.4184e-05 deg
M 85.55272053144417 1.1141e-05 deg
tp 2458691.089050361746
(2019-Jul-26.58905036)
4.0683e-05 TDB
period 1301.980126147266
3.56
6.6269e-06
1.814e-08
d
yr
n .276501916404276 1.4074e-09 deg/d
Q 2.734234766481418 9.2779e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2137  
   data-arc span      22513 days (61.64 yr)  
   first obs. used      1958-02-24  
   last obs. used      2019-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45069  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:10:53  

Additional Information
 Earth MOID = .920212 au 
 Jupiter MOID = 2.31523 au 
 T_jup = 3.543 
[ 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 13.4   n/a MPO492831  
diameter diameter 5.440 km 0.714 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.300   0.128 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

6742 Biandepei           Discovered 1994 Apr. 8 by K. Endate and K. Watanabe at Kitami.
Named in honor of Bian Depei (b. 1926), popularizer of science and astronomy in the People's Republic of China. He has published more than 60 books, many winning national prizes, and nearly 800 articles. He played an important role in establishing the Beijing Planetarium in 1954 and launching Amateur Astronomer magazine in 1958, both the first of their kind in China. Name proposed by the discoverers following a suggestion by A. Fujii and T. Sato.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980411/MPCPages.arcLast Updated: 2009-11-17

Alternate Designations
 1994 GR = 1958 DS = 1984 SP2 = 1991 RB30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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