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 ]  
23992 Markhobbs (1999 RO11)
Classification: Main-belt Asteroid          SPK-ID: 2023992
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873755869504062 6.0714e-08  
a 2.316861961597488 2.0063e-08 AU
q 1.882738591660089 1.381e-07 AU
i 5.312188686889419 9.001e-06 deg
node 340.4639463880976 6.719e-05 deg
peri 56.58889280542222 7.1359e-05 deg
M 73.7308772031478 2.4609e-05 deg
tp 2456736.687380631813
(2014-Mar-20.18738063)
8.7229e-05 JED
period 1288.097288072042
3.53
1.6732e-05
4.581e-08
d
yr
n .2794819951362754 3.6304e-09 deg/d
Q 2.750985331534887 2.3823e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      426  
   data-arc span      12725 days (34.84 yr)  
   first obs. used      1980-03-23  
   last obs. used      2015-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58856  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:06:21  

Additional Information
 Earth MOID = .89534 AU 
 T_jup = 3.551 
[ 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 15.5 mag n/a MPO270293  

23992 Markhobbs           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Mark Hobbs mentored a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. He teaches at the Fairmont Private Schools, Santa Ana, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

[ show close-approach data ]
Alternate Designations
 1999 RO11 = 1980 FH8 = 1992 SG18 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-06 17:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin