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12113 Hollows (1998 OH12)
Classification: Main-belt Asteroid          SPK-ID: 2012113
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ 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 .1118024364127188 6.413e-08  
a 3.005023681190264 2.7057e-08 AU
q 2.669054712155275 1.9933e-07 AU
i 11.70119157969765 6.1153e-06 deg
node 100.6652473824586 3.4403e-05 deg
peri 236.2561898808346 4.5211e-05 deg
M 30.74209134554111 2.957e-05 deg
tp 2456838.019523883471
(2014-Jun-29.51952388)
0.00015621 JED
period 1902.699811294206
5.21
2.5698e-05
7.036e-08
d
yr
n .1892048329763222 2.5554e-09 deg/d
Q 3.340992650225252 3.0082e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      13599 days (37.23 yr)  
   first obs. used      1977-07-21  
   last obs. used      2014-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55717  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:16:31  

Additional Information
 Earth MOID = 1.67974 AU 
 T_jup = 3.211 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7 mag n/a MPO309246  

12113 Hollows           Discovered 1998 July 29 by J. Broughton at Reedy Creek Observatory.
New Zealand-born Fred Hollows (1929-1993) was an ophthalmologist who saved the sight of thousands of aboriginal and poor people in third-world countries rather than make a comfortable living at home. His work outlives him, following his training of local doctors and establishing local interocular lens factories.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1998 OH12 = 1987 LC 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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