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216331 Panjunhua (2007 VG125)
Classification: Main-belt Asteroid          SPK-ID: 2216331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .132941110536788 5.8429e-08  
a 2.298891991579807 1.6577e-08 au
q 1.99327473721506 1.3959e-07 au
i 3.74458694568394 6.1131e-06 deg
node 46.8675774678878 7.2975e-05 deg
peri 6.014169247264731 7.5864e-05 deg
M 275.6174658859245 2.292e-05 deg
tp 2459498.918910736434
(2021-Oct-11.41891074)
8.3146e-05 TDB
period 1273.140336362524
3.49
1.3771e-05
3.77e-08
d
yr
n .2827653713561165 3.0584e-09 deg/d
Q 2.604509245944555 1.8781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      271  
   data-arc span      6723 days (18.41 yr)  
   first obs. used      2000-11-02  
   last obs. used      2019-03-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51707  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:54:23  

Additional Information
 Earth MOID = 1.00349 au 
 Jupiter MOID = 2.72554 au 
 T_jup = 3.578 
[ 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 17.0   n/a MPO418159  
diameter diameter 2.038 km 0.484 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.081   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

216331 Panjunhua           Discovered 2007 Nov. 5 by PMO NEO Survey Program at XuYi.
Pan Junhua (b. 1930), an academician of the Chinese Academy of Engineering, is the founder of both optic test equipment and optics manufacturing technology, and a pioneer of aspherical optics application 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: MPC batch dated 2018-10-26Last Updated: 2019-04-09

Alternate Designations
 2007 VG125 = 2000 WZ189 = 2005 CV66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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