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26738 Lishizhen (2001 HB32)
Classification: Main-belt Asteroid          SPK-ID: 2026738
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1702361329148875 3.4639e-08  
a 2.214417161357498 6.0063e-09 au
q 1.837443347147635 7.6989e-08 au
i 7.108628475694973 4.002e-06 deg
node 213.9196397475659 2.3286e-05 deg
peri 152.8793450350563 2.4903e-05 deg
M 166.2374367561724 8.6279e-06 deg
tp 2458444.705918665357
(2018-Nov-22.20591867)
2.8356e-05 TDB
period 1203.614980986179
3.30
4.897e-06
1.341e-08
d
yr
n .2990989690947806 1.2169e-09 deg/d
Q 2.591390975567361 7.0288e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1646  
   data-arc span      10603 days (29.03 yr)  
   first obs. used      1991-05-12  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51873  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:27:14  

Additional Information
 Earth MOID = .840047 au 
 Jupiter MOID = 2.88523 au 
 T_jup = 3.626 
[ 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 15.0   n/a MPO452544  
diameter diameter 2.430 km 0.374 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.299   0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

26738 Lishizhen           Discovered 2001 Apr. 28 by W. K. Y. Yeung at the Desert Beaver Observatory.
Li Shizhen (1518-1593) was a Chinese herbalist. It took him 28 years to complete his Bencao Gangmu (Compendium of Materia Medica), with details of 1800 drugs.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20121228/MPCPages.arcLast Updated: 2013-01-02

Alternate Designations
 2001 HB32 = 1992 WF9 = 1995 SF55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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