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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:17:01

Orbital Elements for TOK431
WDS: TOK431 WDS ID/Discoverer
P: 18.000 Orbital period (years)
a: 0.147 Semi-major axis (arcseconds)
i: 128.3 Inclination (degrees)
Ω: 145.2 Longitude of ascending node (degrees)
T: 2022.450 Epoch of periastron passage (year)
e: 0.17 Eccentricity
ω: 124.8 Longitude of periastron (degrees)
Start-Year: 2016.0 Year
End-Year: 2034.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK431
Position: 054950.21-722445.0 Epoch-2000 right ascension and declination
WDS-ID: 05498-7225 WDS designation
Discoverer Code: TOK431 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 40107 HD catalog number
Hipparcos number: 27531 Hipparcos catalog number
V1: 9.88 Magnitude of the primary
V2: 11. Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for TOK431
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:17:01 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 = [-0.06465516184244312, -0.08883406521207275, -0.10438014527636767, -0.1081601181936719, -0.09745685522076329, -0.07117718894890447, -0.03166910217518116, 0.014275270667430761, 0.05738953964853501, 0.09003377653033176, 0.1085819172284091, 0.11288618785686279, 0.10469953097921286, 0.08649587709273587, 0.060893513966990845, 0.030459684900090326, -0.002300389880584435, -0.03487596986958413, -0.06465516184244312], y_list = [-0.14667338133097604, -0.131348844938497, -0.10337314442172486, -0.06388269422254539, -0.016013923928241445, 0.03418920993311639, 0.07777091097931307, 0.10531673744663012, 0.11136662983559861, 0.09675566033783203, 0.06675370213520591, 0.02782371939985672, -0.014308327983896566, -0.05516377764987477, -0.09137245624290093, -0.12038758717508714, -0.14024218355098955, -0.14939432130361527, -0.14667338133097604]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.06465516184244312, -0.08883406521207275, -0.10438014527636767, -0.1081601181936719, -0.09745685522076329, -0.07117718894890447, -0.03166910217518116, 0.014275270667430761, 0.05738953964853501, 0.09003377653033176, 0.1085819172284091, 0.11288618785686279, 0.10469953097921286, 0.08649587709273587, 0.060893513966990845, 0.030459684900090326, -0.002300389880584435, -0.03487596986958413, -0.06465516184244312], y_list=[-0.14667338133097604, -0.131348844938497, -0.10337314442172486, -0.06388269422254539, -0.016013923928241445, 0.03418920993311639, 0.07777091097931307, 0.10531673744663012, 0.11136662983559861, 0.09675566033783203, 0.06675370213520591, 0.02782371939985672, -0.014308327983896566, -0.05516377764987477, -0.09137245624290093, -0.12038758717508714, -0.14024218355098955, -0.14939432130361527, -0.14667338133097604])
    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([-0.09745686, -0.10816012, -0.10438015, -0...05738954, 0.01427527, -0.0316691 , -0.07117719]), y = array([-0.01601392, -0.06388269, -0.10337314, -0...11136663, 0.10531674, 0.07777091, 0.03418921]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.09745686, -0.10816012, -0.10438015, -0...05738954, 0.01427527, -0.0316691 , -0.07117719]), array([-0.01601392, -0.06388269, -0.10337314, -0...11136663, 0.10531674, 0.07777091, 0.03418921])], 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([-0.09745686, -0.10816012, -0.10438015, -0...05738954, 0.01427527, -0.0316691 , -0.07117719]), array([-0.01601392, -0.06388269, -0.10337314, -0...11136663, 0.10531674, 0.07777091, 0.03418921])], 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([[-0.09745686, -0.10816012, -0.10438015, -...1136663, 0.10531674, 0.07777091, -0.01601392]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.06563638, 0.11872131, 0.161... 0.71676547, 0.77502324, 0.84670585, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=25, 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([[-0.09745686, -0.10816012, -0.10438015, -...1136663, 0.10531674, 0.07777091, -0.01601392]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.06563638, 0.11872131, 0.161... 0.71676547, 0.77502324, 0.84670585, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 25, 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>