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5390 Huichiming (1981 YO1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2005390
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07720870970436647 7.5009e-08  
a 1.939212014652064 1.1965e-08 AU
q 1.789487957157573 1.4392e-07 AU
i 23.81137006710224 7.9645e-06 deg
node 85.65311667179427 2.105e-05 deg
peri 322.314933906393 5.9123e-05 deg
M 103.294273186074 5.64e-05 deg
tp 2456717.484572486826
(2014-Feb-28.98457249)
0.00015415 JED
period 986.3620776072098
2.70
9.1285e-06
2.499e-08
d
yr
n .3649775353015544 3.3778e-09 deg/d
Q 2.088936072146555 1.2888e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      11692 days (32.01 yr)  
   first obs. used      1981-12-19  
   last obs. used      2013-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48112  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 18:11:45  

Additional Information
 Earth MOID = .824557 AU 
 T_jup = 3.797 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.5 mag n/a MPO267729  
rotation period rot_per 111. h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2009) Minor Planet Bul. 36, 70-73.]
[Warner, B.D. (2011) Minor Planet Bul. 38, 96-101.]

5390 Huichiming           Discovered 1981 Dec. 19 at the Purple Mountain Observatory.
For his help in alleviating poverty, Hui Chi Ming (b. 1964) received the China Glory Facilitative Poverty Aid Award and the United Nations Humanity and Peace Promotion Award.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1981 YO1 = 1989 WN7 = 1991 LO 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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