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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1081911287771951 4.0918e-08  
a 3.006068705914754 1.6944e-08 au
q 2.680838739440035 1.2723e-07 au
i 11.71282195091253 3.8091e-06 deg
node 100.4693263103033 2.1126e-05 deg
peri 236.7078754356917 2.7556e-05 deg
M 332.8909929537553 1.6929e-05 deg
tp 2458743.853364499724
(2019-Sep-17.35336450)
8.9363e-05 TDB
period 1903.692419713672
5.21
1.6095e-05
4.407e-08
d
yr
n .1891061792714111 1.5988e-09 deg/d
Q 3.331298672389473 1.8777e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1860  
   data-arc span      15472 days (42.36 yr)  
   first obs. used      1977-07-21  
   last obs. used      2019-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51039  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:22:32  

Additional Information
 Earth MOID = 1.69022 au 
 Jupiter MOID = 2.01819 au 
 T_jup = 3.211 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.7   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 | Mission Design | Physical Parameters | Discovery Circumstances ]
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