Content-Type: text/html; charset=UTF-8 Double Star Calculator - Orbital Elements

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:55:03

Orbital Elements for COU1258
WDS: COU1258 WDS ID/Discoverer
P: 96.000 Orbital period (years)
a: 0.198 Semi-major axis (arcseconds)
i: 85.29 Inclination (degrees)
Ω: 232.0 Longitude of ascending node (degrees)
T: 2096.000 Epoch of periastron passage (year)
e: 0.237 Eccentricity
ω: 259.0 Longitude of periastron (degrees)
Start-Year: 1977.0 Year
End-Year: 2073.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1258
Position: 095424.02+304118.1 Epoch-2000 right ascension and declination
WDS-ID: 09544+3041 WDS designation
Discoverer Code: COU1258 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 85708 HD catalog number
Hipparcos number: 48572 Hipparcos catalog number
V1: 9.92 Magnitude of the primary
V2: 9.13 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for COU1258
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:55:03 2025

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/cgi-bin/ds_orbit.py in <module>
    891 
    892 # Smooth curve if necessary
=>  893 x_smooth, y_smooth = Q_get_smoothed_orbit(x_list, y_list)
    894 plt.plot(x_smooth, y_smooth, label=f'Orbit of {wds}', color='#528B8B')
    895 
x_smooth undefined, y_smooth undefined, Q_get_smoothed_orbit = <function Q_get_smoothed_orbit>, x_list = [-0.1288531177560789, -0.13260760977710673, -0.1358342085692291, -0.13849528764730373, -0.14055243819968338, -0.14196674575594628, -0.14269916332620525, -0.14271099997065015, -0.14196454471119202, -0.14042384529386828, -0.13805565876894513, -0.13483058520981167, -0.13072438606266815, -0.12571947357894872, -0.1198065368500933, -0.1129862432457755, -0.10527092299834144, -0.09668611260684455, -0.08727180515925054, -0.07708323998674857, ...], y_list = [0.11263229765857724, 0.1143266345514464, 0.11556589746314122, 0.11632407158052949, 0.11657504848438402, 0.11629290121678006, 0.11545223695163692, 0.11402864028198524, 0.11199922005805359, 0.1093432713804013, 0.10604306117449108, 0.10208474004636597, 0.09745937411378337, 0.09216407761447007, 0.08620321007036713, 0.07958958109924469, 0.07234558318327315, 0.06450415084381404, 0.05610942828544446, 0.047217022346277546, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.1288531177560789, -0.13260760977710673, -0.1358342085692291, -0.13849528764730373, -0.14055243819968338, -0.14196674575594628, -0.14269916332620525, -0.14271099997065015, -0.14196454471119202, -0.14042384529386828, -0.13805565876894513, -0.13483058520981167, -0.13072438606266815, -0.12571947357894872, -0.1198065368500933, -0.1129862432457755, -0.10527092299834144, -0.09668611260684455, -0.08727180515925054, -0.07708323998674857, ...], y_list=[0.11263229765857724, 0.1143266345514464, 0.11556589746314122, 0.11632407158052949, 0.11657504848438402, 0.11629290121678006, 0.11545223695163692, 0.11402864028198524, 0.11199922005805359, 0.1093432713804013, 0.10604306117449108, 0.10208474004636597, 0.09745937411378337, 0.09216407761447007, 0.08620321007036713, 0.07958958109924469, 0.07234558318327315, 0.06450415084381404, 0.05610942828544446, 0.047217022346277546, ...])
    272     # Nur wenn ausreichend Punkte vorhanden sind
    273     if len(x) >= 4:
=>  274         tck, u = splprep([x, y], s=0.0, per=True) # per=True für geschlossene Kurve (Orbit)
    275         u_fine = np.linspace(0, 1, 300)           # Feinere Parameterwerte
    276         return splev(u_fine, tck)
tck undefined, u undefined, splprep = <function splprep>, x = array([-0.01748267, -0.00458499, 0.00835652, 0...7, -0.05468076, -0.0426512 , -0.03021241]), y = array([-0.00204719, -0.01222636, -0.02228958, -0...3, 0.02821666, 0.01827171, 0.00815151]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.01748267, -0.00458499, 0.00835652, 0...7, -0.05468076, -0.0426512 , -0.03021241]), array([-0.00204719, -0.01222636, -0.02228958, -0...3, 0.02821666, 0.01827171, 0.00815151])], w=None, u=None, ub=None, ue=None, k=3, task=0, s=0.0, t=None, full_output=0, nest=None, per=True, quiet=1)
    153     """
    154 
=>  155     res = _impl.splprep(x, w, u, ub, ue, k, task, s, t, full_output, nest, per,
=>  156                         quiet)
    157     return res
res undefined, global _impl = <module 'scipy.interpolate._fitpack_impl' from '...ist-packages/scipy/interpolate/_fitpack_impl.py'>, _impl.splprep = <function splprep>, x = [array([-0.01748267, -0.00458499, 0.00835652, 0...7, -0.05468076, -0.0426512 , -0.03021241]), array([-0.00204719, -0.01222636, -0.02228958, -0...3, 0.02821666, 0.01827171, 0.00815151])], w = None, u = None, ub = None, ue = None, k = 3, task = 0, s = 0.0, t = None, full_output = 0, nest = None, per = True, quiet = 1
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_impl.py in splprep(x=array([[-0.01748267, -0.00458499, 0.00835652, ... 0.02821666, 0.01827171, -0.00204719]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.02108245, 0.04211744, 0.062...7304, 0.93846822, 0.95849525, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=103, per=True, quiet=1)
    172     wrk = _parcur_cache['wrk']
    173     iwrk = _parcur_cache['iwrk']
=>  174     t, c, o = _fitpack._parcur(ravel(transpose(x)), w, u, ub, ue, k,
=>  175                                task, ipar, s, t, nest, wrk, iwrk, per)
    176     _parcur_cache['u'] = o['u']
t = array([], dtype=float64), c undefined, o undefined, global _fitpack = <module 'scipy.interpolate._fitpack' from '/usr/...polate/_fitpack.cpython-312-x86_64-linux-gnu.so'>, _fitpack._parcur = <built-in function _parcur>, global ravel = <function ravel>, global transpose = <function transpose>, x = array([[-0.01748267, -0.00458499, 0.00835652, ... 0.02821666, 0.01827171, -0.00204719]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.02108245, 0.04211744, 0.062...7304, 0.93846822, 0.95849525, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 103, wrk = array([], dtype=float64), iwrk = array([], dtype=int32), per = True

ValueError: Invalid inputs.
      add_note = <built-in method add_note of ValueError object>
      args = ('Invalid inputs.',)
      with_traceback = <built-in method with_traceback of ValueError object>