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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1873755951275508 5.8424e-08  
a 2.316861957028844 1.7937e-08 AU
q 1.882738569002182 1.3036e-07 AU
i 5.312189156235544 8.9784e-06 deg
node 340.4639832784695 5.6742e-05 deg
peri 56.58885996795762 6.1411e-05 deg
M 73.73087658680643 2.4599e-05 deg
tp 2456736.687383617434
(2014-Mar-20.18738362)
8.7138e-05 JED
period 1288.097284262023
3.53
1.4958e-05
4.095e-08
d
yr
n .2794819959629456 3.2456e-09 deg/d
Q 2.750985345055506 2.1298e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      576  
   data-arc span      12785 days (35.00 yr)  
   first obs. used      1980-03-23  
   last obs. used      2015-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55602  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:16:16  

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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