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9930 Billburrows (1984 CP)
Classification: Main-belt Asteroid          SPK-ID: 2009930
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034711879435528 6.5607e-08  
a 2.4369908314181 1.5008e-08 au
q 2.184832495083723 1.5284e-07 au
i 7.45905766744262 5.1499e-06 deg
node 125.3908865452098 4.7992e-05 deg
peri 77.85947441092385 5.6576e-05 deg
M 96.05531202073985 2.7689e-05 deg
tp 2457029.735490194345
(2015-Jan-07.23549019)
0.00010702 JED
period 1389.56628969376
3.80
1.2836e-05
3.514e-08
d
yr
n .2590736423804141 2.3932e-09 deg/d
Q 2.689149167752477 1.6561e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1101  
   data-arc span      23844 days (65.28 yr)  
   first obs. used      1950-05-10  
   last obs. used      2015-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50502  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:40:43  

Additional Information
 Earth MOID = 1.19618 au 
 Jupiter MOID = 2.29875 au 
 T_jup = 3.485 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO319209  

9930 Billburrows           Discovered 1984 Feb. 5 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
William E. Burrows (b. 1937), of New York University, is a top authority on space, national security, spy satellites and spy planes. His books are extensively researched and detailed, yet enjoyably readable; they include, among others, Deep Black and Exploring Space. The name was suggested by E. M. Standish.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1984 CP = 1961 CO = 1961 EF = 1980 BB6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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