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 ]  
13423 Bobwoolley (1999 VR22)
Classification: Main-belt Asteroid          SPK-ID: 2013423
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07397286986461227 6.1794e-08  
a 2.750646969127112 2.6457e-08 AU
q 2.547173718836382 1.6992e-07 AU
i 4.029123896920658 7.017e-06 deg
node 285.5584778379555 9.4836e-05 deg
peri 94.40089375439851 0.00010796 deg
M 123.7709029966603 5.0631e-05 deg
tp 2456427.615901919713
(2013-May-15.11590192)
0.00023567 JED
period 1666.290463393228
4.56
2.404e-05
6.582e-08
d
yr
n .2160487669520098 3.1171e-09 deg/d
Q 2.954120219417842 2.8414e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      15587 days (42.67 yr)  
   first obs. used      1971-07-27  
   last obs. used      2014-03-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50046  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:38:47  

Additional Information
 Earth MOID = 1.55321 AU 
 T_jup = 3.338 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.0 mag n/a MPO267760  

13423 Bobwoolley           Discovered 1999 Nov. 13 by C. W. Juels at Fountain Hills.
Robert Woolley (b. 1953) taught astronomy and was planetarium director at Montgomery College (1976-1981) and president of the Von Braun Astronomical Society (1993-1994). Since 1994 he has been conducting week-long astronomical/geological educational experiences at a dark site near Flagstaff, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 1999 VR22 = 1971 OY = 1971 QC2 = 1985 QN4 = 1990 UC3 = 1990 WC13 = 1996 BD13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-26 02:56 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin