Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
129801 Tommcmahon (1999 KB1)
Classification: Main-belt Asteroid          SPK-ID: 2129801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1996475778018225 3.8882e-08  
a 2.341482266242131 1.0051e-08 au
q 1.874011003320968 9.2103e-08 au
i 3.180192396338704 4.2262e-06 deg
node 94.46231401429391 7.6837e-05 deg
peri 158.4362095424222 7.7533e-05 deg
M 299.0219186130299 1.0193e-05 deg
tp 2459222.169525207005
(2021-Jan-07.66952521)
3.7546e-05 TDB
period 1308.683829655124
3.58
8.4267e-06
2.307e-08
d
yr
n .2750855415512167 1.7713e-09 deg/d
Q 2.808953529163295 1.2058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      365  
   data-arc span      7659 days (20.97 yr)  
   first obs. used      1999-05-10  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68697  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:47:17  

Additional Information
 Earth MOID = .859906 au 
 Jupiter MOID = 2.23682 au 
 T_jup = 3.535 
[ 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 16.9   n/a MPO417677  

129801 Tommcmahon           Discovered 1999 May 17 by the Catalina Sky Survey.
Tom McMahon (b. 1962) was electronics lead on the OCAMS camera for the OSIRIS-REx Sample Return Mission. He also served as project manager for the Large Binocular Telescope Interferometer and systems engineer for the Multi-band Imaging Spectrometer (MIPS) on the Spitzer Space Telescope.
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 2016-11-14Last Updated: 2016-11-20

[ show close-approach data ]
Alternate Designations
 1999 KB1 = 2002 CU189 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-31 02:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin