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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 ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1704485968343124 3.3058e-08  
a 2.214402919843354 5.8061e-09 au
q 1.83696104933025 7.3864e-08 au
i 7.108989266118821 3.8508e-06 deg
node 213.9148687822097 2.2917e-05 deg
peri 152.8316692142371 2.4564e-05 deg
M 284.7637231216018 8.7243e-06 deg
tp 2459648.040656626384
(2022-Mar-09.54065663)
2.9482e-05 TDB
period 1203.603369845888
3.30
4.7337e-06
1.296e-08
d
yr
n .299101854497213 1.1764e-09 deg/d
Q 2.591844790356458 6.7958e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      11046 days (30.24 yr)  
   first obs. used      1991-05-12  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50876  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 23:15:33  

Additional Information
 Earth MOID = .838758 au 
 Jupiter MOID = 2.88664 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 15.08   n/a E2021B10  
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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