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11425 Wearydunlop (1999 MF)
Classification: Main-belt Asteroid          SPK-ID: 2011425
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2285850285347673 4.9371e-08  
a 2.369168854102091 8.1898e-09 au
q 1.827612323983483 1.1581e-07 au
i 3.242823601541697 5.1719e-06 deg
node 30.48080938173183 6.8152e-05 deg
peri 346.4550700786599 6.8597e-05 deg
M 196.2568881595071 8.7084e-06 deg
tp 2459606.333086236245
(2022-Jan-26.83308624)
3.4071e-05 TDB
period 1331.963882899123
3.65
6.9065e-06
1.891e-08
d
yr
n .2702775988313077 1.4015e-09 deg/d
Q 2.9107253842207 1.0062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      942  
   data-arc span      14117 days (38.65 yr)  
   first obs. used      1981-09-01  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52765  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:32:37  

Additional Information
 Earth MOID = .829504 au 
 Jupiter MOID = 2.55154 au 
 T_jup = 3.508 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO416837  

11425 Wearydunlop           Discovered 1999 June 18 by J. Broughton at Reedy Creek Observatory.
Edward `Weary' Dunlop (1907-1993) was an Australian Army surgeon prisoner-of-war on the Burma railway and is legendary for repeatedly risking his own life to save sick allied soldiers. On one occasion he placed himself in front of guards with bayonets who were about to kill POWs too sick to work.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1999 MF = 1981 RZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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