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3960 Chaliubieju (1955 BG)
Classification: Main-belt Asteroid          SPK-ID: 2003960
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2786320756445543 6.9298e-08  
a 2.642079065903569 1.0504e-08 AU
q 1.905911091753832 1.8194e-07 AU
i 14.41505953543347 8.9826e-06 deg
node 84.87310291877998 2.6187e-05 deg
peri 12.73980754632162 3.031e-05 deg
M 347.4553020159395 1.256e-05 deg
tp 2457055.160657470422
(2015-Feb-01.66065747)
5.4679e-05 JED
period 1568.617810835693
4.29
9.3543e-06
2.561e-08
d
yr
n .2295014104220882 1.3686e-09 deg/d
Q 3.378247040053306 1.3431e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      920  
   data-arc span      21954 days (60.11 yr)  
   first obs. used      1955-01-22  
   last obs. used      2015-03-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44826  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 13:50:56  

Additional Information
 Earth MOID = .924796 AU 
 T_jup = 3.295 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.3 mag n/a MPO324343  
rotation period rot_per 3.986 h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 Published Reference List:
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Linder, T.; Sampson, R.; Holmes, R. (2013) Minor Planet Bul. 40, 4-6.]

3960 Chaliubieju           Discovered 1955 Jan. 20 at the Purple Mountain Observatory.
Named in honor of Cha Liubieju, a friend of the discoverer. She devotes her every effort to caring for and educating sick and destitute mothers and children in China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19981005/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1955 BG = 1984 YZ3 = A921 EF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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