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JPL Small-Body Database Browser
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246643 Miaoli (2008 YU9)
Classification: Main-belt Asteroid          SPK-ID: 2246643
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1875674006170344 5.2698e-08  
a 2.701300251022961 2.0804e-08 au
q 2.194624384652442 1.3907e-07 au
i 3.715866587754761 5.569e-06 deg
node 278.2503710613332 8.72e-05 deg
peri 206.8446676186953 8.869e-05 deg
M 109.8592696744069 1.4446e-05 deg
tp 2458105.629093793268
(2017-Dec-18.12909379)
6.4338e-05 TDB
period 1621.652198876091
4.44
1.8733e-05
5.129e-08
d
yr
n .2219958140527932 2.5645e-09 deg/d
Q 3.207976117393481 2.4706e-08 au
  Orbit Determination Parameters
   # obs. used (total)      351  
   data-arc span      8576 days (23.48 yr)  
   first obs. used      1994-10-27  
   last obs. used      2018-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57075  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:43:30  

Additional Information
 Earth MOID = 1.21125 au 
 Jupiter MOID = 1.87767 au 
 T_jup = 3.339 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO437148  
diameter diameter 3.769 km 0.930 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

246643 Miaoli           Discovered 2008 Dec. 18 by X. Y. Hsiao and Q.-z. Ye at Lulin.
Miaoli is a city located in the mountainous terrain on the western coastline of Taiwan. The city is nicknamed "The Hilly City". The campus of the National Central University was located in Miaoli from 1962 to 1968.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111012/MPCPages.arcLast Updated: 2011-10-13

[ show close-approach data ]
Alternate Designations
 2008 YU9 = 2000 AR17 = 2007 TT393 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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