Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034025432320531 6.6406e-08  
a 2.436577872540163 1.5142e-08 AU
q 2.184629523736564 1.5504e-07 AU
i 7.459204297052906 5.2407e-06 deg
node 125.3908213529906 4.9722e-05 deg
peri 77.7473288966217 5.8068e-05 deg
M 352.516952703695 2.7875e-05 deg
tp 2457029.376520416904
(2015-Jan-06.87652042)
0.00010756 JED
period 1389.213102423996
3.80
1.2949e-05
3.545e-08
d
yr
n .2591395080940763 2.4156e-09 deg/d
Q 2.688526221343761 1.6707e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1081  
   data-arc span      23786 days (65.12 yr)  
   first obs. used      1950-05-10  
   last obs. used      2015-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50799  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:03:23  

Additional Information
 Earth MOID = 1.19767 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Aug-03 15:10 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin