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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873755867023264 6.232e-08  
a 2.316861961864176 2.1056e-08 AU
q 1.882738592451573 1.4317e-07 AU
i 5.312188613405565 9.1382e-06 deg
node 340.4639431402126 6.9126e-05 deg
peri 56.58889553106368 7.3171e-05 deg
M 73.73087747564026 2.4631e-05 deg
tp 2456736.687379611271
(2014-Mar-20.18737961)
8.7283e-05 JED
period 1288.097288294446
3.53
1.756e-05
4.808e-08
d
yr
n .2794819950880197 3.81e-09 deg/d
Q 2.750985331276779 2.5002e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      411  
   data-arc span      12317 days (33.72 yr)  
   first obs. used      1980-03-23  
   last obs. used      2013-12-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .59028  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:41:12  

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 ]
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