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11195 Woomera (1999 AY22)
Classification: Main-belt Asteroid          SPK-ID: 2011195
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137873729568745 1.4235e-08  
a 2.323752965603958 6.3113e-09 au
q 2.059339220247137 3.4382e-08 au
i 3.057061963045588 8.0722e-07 deg
node 292.0057927362521 8.7882e-06 deg
peri 202.7276971241864 9.8852e-06 deg
M 136.4328379120092 7.5171e-06 deg
tp 2458906.157231754401
(2020-Feb-26.65723175)
2.6616e-05 TDB
period 1293.848308588745
3.54
5.2711e-06
1.443e-08
d
yr
n .2782397268754535 1.1335e-09 deg/d
Q 2.588166710960779 7.0294e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2417  
   data-arc span      24031 days (65.79 yr)  
   first obs. used      1955-10-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:29:42  

Additional Information
 Earth MOID = 1.07445 au 
 Jupiter MOID = 2.44072 au 
 T_jup = 3.565 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456912.5 (2014-Sep-12.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137845332390397 1.4252e-08  
q 2.05960622528836 3.4494e-08 au
tp 2456319.243657714383
(2013-Jan-26.74365771)
2.7005e-05 TDB
node 292.0853393114961 8.7887e-06 deg
peri 202.8770970155859 9.8831e-06 deg
i 3.057306051551816 8.0712e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2417  
   data-arc span      24031 days (65.79 yr)  
   first obs. used      1955-10-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45322  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 20:29:42  

Additional Information
 Jupiter MOID = 2.44072 au 
 T_jup = 3.565 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.03123482015987E-16 -4.850879638049862E-16 -2.260273444647684E-13 -2.543197170020664E-14 -2.520815614476548E-14 1.552785720445324E-15
q -4.850879638049862E-16 1.189802462339094E-15 4.897836618772898E-13 5.972553447175046E-14 5.298884958320228E-14 -3.530461362674737E-15
tp -2.260273444647684E-13 4.897836618772898E-13 7.29254846923201E-10 5.146207908166338E-11 1.246747204897972E-10 -1.115014352692518E-12
node -2.543197170020664E-14 5.972553447175046E-14 5.146207908166338E-11 7.724205890243861E-11 -6.548738144487899E-11 -2.180972382378374E-12
peri -2.520815614476548E-14 5.298884958320228E-14 1.246747204897972E-10 -6.548738144487899E-11 9.767530636397534E-11 1.889321938602756E-12
i 1.552785720445324E-15 -3.530461362674737E-15 -1.115014352692518E-12 -2.180972382378374E-12 1.889321938602756E-12 6.514355295694608E-13

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.22   n/a E2021B10  
diameter diameter 8.283 km 0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11195 Woomera           Discovered 1999 Jan. 15 by F. B. Zoltowski at Woomera.
Woomera, Aboriginal for spear thrower, is a village in the Australian outback founded in 1947 as a rocket rangehead. Woomera and its range played a key role in Australia's space program, culminating in the orbital launch of WRESAT in 1967. It was home to the discoverer for twelve years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001013/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 1999 AY22 = 1981 AD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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