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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03397286068681143 2.8903e-08  
a 2.909010325221451 1.3197e-08 au
q 2.810182922706206 8.1998e-08 au
i 1.126491500554662 4.0324e-06 deg
node 302.9377214320499 0.00019368 deg
peri 303.8272639929791 0.00020657 deg
M 153.0831865654104 7.2653e-05 deg
tp 2458229.878158228945
(2018-Apr-21.37815823)
0.00036565 TDB
period 1812.242541208406
4.96
1.2332e-05
3.376e-08
d
yr
n .1986489069834722 1.3517e-09 deg/d
Q 3.007837727736695 1.3645e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2292  
   data-arc span      24216 days (66.30 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:00  

Additional Information
 Earth MOID = 1.79648 au 
 Jupiter MOID = 1.98412 au 
 T_jup = 3.283 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456583.5 (2013-Oct-18.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03505377754868989 2.8456e-08  
q 2.808095327933908 8.0926e-08 au
tp 2456437.540333126545
(2013-May-25.04033313)
0.00035886 TDB
node 303.2676563198385 0.00019343 deg
peri 307.6369438631743 0.00020585 deg
i 1.126590647339406 4.0388e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2292  
   data-arc span      24216 days (66.30 yr)  
   first obs. used      1954-07-29  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49559  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:00  

Additional Information
 Jupiter MOID = 1.98412 au 
 T_jup = 3.283 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.097686247096887E-16 -2.275186348672561E-15 -4.09757341930102E-13 7.380223180006384E-16 -8.820723607511188E-14 6.117526327619881E-17
q -2.275186348672561E-15 6.549091841820972E-15 8.778511655383273E-13 -3.994345522194736E-15 1.981177733156462E-13 -8.344255395886174E-17
tp -4.09757341930102E-13 8.778511655383273E-13 1.287805939558497E-7 1.470189655657628E-11 2.528776132940872E-8 -1.230950671730206E-12
node 7.380223180006384E-16 -3.994345522194736E-15 1.470189655657628E-11 3.741610275474386E-8 -3.740609584018042E-8 2.754865399268299E-10
peri -8.820723607511188E-14 1.981177733156462E-13 2.528776132940872E-8 -3.740609584018042E-8 4.237453033857981E-8 -2.756772550490905E-10
i 6.117526327619881E-17 -8.344255395886174E-17 -1.230950671730206E-12 2.754865399268299E-10 -2.756772550490905E-10 1.631158395751754E-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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2094-Sep-30 01:16 00:02 Jupiter 1.9903739487429 1.99037360548911 1.99037429199692 3.39009501628479 3.26215040214254 2486150.552798596 1.62748683330593 75.0822687779021 11.358908815813 -86.3126337318268 4236734.79872946 T 36 CATAB v2.0f-lin.ifort 2020-Dec-18 02:46:06 2020-Dec-18 02:46

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