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18322 Korokan (1982 VF5)
Classification: Main-belt Asteroid          SPK-ID: 2018322
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635495568205253 4.8206e-08  
a 2.702785323216329 1.3459e-08 au
q 2.260745981423278 1.3483e-07 au
i 5.340090780650947 4.8774e-06 deg
node 205.839280470902 4.2605e-05 deg
peri 154.8199871964738 4.3989e-05 deg
M 242.373896164709 1.314e-05 deg
tp 2459730.794308516027
(2022-May-31.29430852)
6.1225e-05 TDB
period 1622.989666758755
4.44
1.2123e-05
3.319e-08
d
yr
n .2218128724867053 1.6568e-09 deg/d
Q 3.14482466500938 1.566e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1526  
   data-arc span      13707 days (37.53 yr)  
   first obs. used      1982-11-12  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51616  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:26:29  

Additional Information
 Earth MOID = 1.25769 au 
 Jupiter MOID = 2.32617 au 
 T_jup = 3.341 
[ 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 14.2   n/a MPO384911  
diameter diameter 4.229 km 0.232 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.272   0.070 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18322 Korokan           Discovered 1982 Nov. 14 by H. Kosai and K. Hurukawa at Kiso.
Korokan was a guest house for foreign envoys built in Chikushi (now Fukuoka city) in the 8th century.
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 2017-11-04Last Updated: 2017-11-07

Alternate Designations
 1982 VF5 = 1998 HG33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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