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JPL Small-Body Database Browser
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35394 Countbasie (1997 XD9)
Classification: Main-belt Asteroid          SPK-ID: 2035394
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2113569387825459 4.7102e-08  
a 2.759661583988856 1.6243e-08 au
q 2.176387959521179 1.3677e-07 au
i 9.935718263089448 3.8501e-06 deg
node 144.1220676648681 2.3389e-05 deg
peri 36.09858975186412 2.5052e-05 deg
M 309.1919775220672 1.152e-05 deg
tp 2459236.826247979059
(2021-Jan-22.32624798)
5.4892e-05 TDB
period 1674.488498532146
4.58
1.4784e-05
4.048e-08
d
yr
n .2149910258061345 1.8981e-09 deg/d
Q 3.342935208456532 1.9676e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1415  
   data-arc span      13117 days (35.91 yr)  
   first obs. used      1984-03-01  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53888  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 03:48:52  

Additional Information
 Earth MOID = 1.1895 au 
 Jupiter MOID = 1.64816 au 
 T_jup = 3.288 
[ 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 14.1   n/a MPO358955  
diameter diameter 6.299 km 1.852 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.189   0.218 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

35394 Countbasie           Discovered 1997 Dec. 7 at Caussols.
William James "Count" Basie (1904-1984) was an American jazz pianist, organist, bandleader and composer. One of the greatest jazz musicians of the 20th century, he founded the Count Basie Orchestra in 1935 and left an impressive discography.
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 2019-12-12Last Updated: 2019-12-13

[ show close-approach data ]
Alternate Designations
 1997 XD9 = 1984 ED1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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