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11449 Stephwerner (1979 QP)
Classification: Main-belt Asteroid          SPK-ID: 2011449
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03397286071235233 2.8916e-08  
a 2.909010325272963 1.3216e-08 au
q 2.81018292268167 8.2017e-08 au
i 1.12649153173855 4.0396e-06 deg
node 302.9377227510306 0.00019395 deg
peri 303.8272624467235 0.00020687 deg
M 153.0831867784992 7.2777e-05 deg
tp 2458229.878157135785
(2018-Apr-21.37815714)
0.00036629 TDB
period 1812.242541256543
4.96
1.2349e-05
3.381e-08
d
yr
n .1986489069781957 1.3537e-09 deg/d
Q 3.007837727864256 1.3665e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2285  
   data-arc span      24199 days (66.25 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:59:30  

Additional Information
 Earth MOID = 1.79648 au 
 Jupiter MOID = 1.98412 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456579.5 (2013-Oct-14.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03505470660429186 2.8464e-08  
q 2.808098824883013 8.0934e-08 au
tp 2456437.561542032841
(2013-May-25.06154203)
0.00035954 TDB
node 303.2677554532102 0.0001937 deg
peri 307.6413673446367 0.00020615 deg
i 1.126585865740694 4.046e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2285  
   data-arc span      24199 days (66.25 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49632  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:59:30  

Additional Information
 Jupiter MOID = 1.98412 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.101760814508666E-16 -2.275910296818282E-15 -4.233735362942939E-13 6.8836397069645E-16 -9.089823694697141E-14 6.023209478175406E-17
q -2.275910296818282E-15 6.550371520484927E-15 9.012488183874632E-13 -3.850730677313408E-15 2.026905330460181E-13 -8.051180592697823E-17
tp -4.233735362942939E-13 9.012488183874632E-13 1.29267413313499E-7 1.441675232507305E-11 2.538585155105593E-8 -1.247446213441905E-12
node 6.8836397069645E-16 -3.850730677313408E-15 1.441675232507305E-11 3.752040734728359E-8 -3.751043717195644E-8 2.779508526831363E-10
peri -9.089823694697141E-14 2.026905330460181E-13 2.538585155105593E-8 -3.751043717195644E-8 4.249855875912989E-8 -2.781443950312915E-10
i 6.023209478175406E-17 -8.051180592697823E-17 -1.247446213441905E-12 2.779508526831363E-10 -2.781443950312915E-10 1.63699463986811E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.1   n/a MPO412266  

11449 Stephwerner           Discovered 1979 Aug. 22 by C.-I. Lagerkvist at the European Southern Observatory.
German geophysicist Stephanie C. Werner (b. 1974) has investigated the chronostratigraphy and geologic evolutionary history of Mars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060613/MPCPages.arcLast Updated: 2008-05-22

[ show close-approach data ]
Alternate Designations
 1979 QP = 1990 TJ12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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