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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:44:42

Orbital Elements for TOK357BC
WDS: TOK357BC WDS ID/Discoverer
P: 60.000 Orbital period (years)
a: 0.299 Semi-major axis (arcseconds)
i: 66.8 Inclination (degrees)
Ω: 177.0 Longitude of ascending node (degrees)
T: 2070.000 Epoch of periastron passage (year)
e: 0.2 Eccentricity
ω: 39.6 Longitude of periastron (degrees)
Start-Year: 1995.0 Year
End-Year: 2055.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK357BC
Position: 090836.62-255020.2 Epoch-2000 right ascension and declination
WDS-ID: 09086-2550 WDS designation
Discoverer Code: TOK357BC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 11.8 Magnitude of the primary
V2: 19.3 Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for TOK357BC
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:44:42 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 = [-0.12153285742869137, -0.11665103667875801, -0.11056063891800769, -0.10325214051522368, -0.0947308837382377, -0.08502109960892756, -0.07417048845580454, -0.06225516210151265, -0.04938456421443916, -0.03570574566260474, -0.021406113739798713, -0.006713573855097836, 0.008107040709257747, 0.022762065891310954, 0.03694176264741726, 0.050336851301815796, 0.06265687304736522, 0.07364770027537487, 0.08310549351632746, 0.09088515755402422, ...], y_list = [-0.08593450272783787, -0.11216619765979768, -0.13723255733544878, -0.16078317305606762, -0.18244081299027748, -0.2018041334128725, -0.21845315007793062, -0.23195836424982952, -0.24189441880887494, -0.24785891526397064, -0.2494964347439397, -0.24652679423203702, -0.23877517630781248, -0.22620026142624106, -0.2089153897421956, -0.18719774291980198, -0.1614820292016922, -0.1323380689436285, -0.10043516544848273, -0.06649895288806167, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.12153285742869137, -0.11665103667875801, -0.11056063891800769, -0.10325214051522368, -0.0947308837382377, -0.08502109960892756, -0.07417048845580454, -0.06225516210151265, -0.04938456421443916, -0.03570574566260474, -0.021406113739798713, -0.006713573855097836, 0.008107040709257747, 0.022762065891310954, 0.03694176264741726, 0.050336851301815796, 0.06265687304736522, 0.07364770027537487, 0.08310549351632746, 0.09088515755402422, ...], y_list=[-0.08593450272783787, -0.11216619765979768, -0.13723255733544878, -0.16078317305606762, -0.18244081299027748, -0.2018041334128725, -0.21845315007793062, -0.23195836424982952, -0.24189441880887494, -0.24785891526397064, -0.2494964347439397, -0.24652679423203702, -0.23877517630781248, -0.22620026142624106, -0.2089153897421956, -0.18719774291980198, -0.1614820292016922, -0.1323380689436285, -0.10043516544848273, -0.06649895288806167, ...])
    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([-0.12917794, -0.12776341, -0.12522709, -0...7, -0.12711478, -0.12880827, -0.1295115 ]), y = array([-0.0033423 , -0.03123949, -0.05886031, -0...5, 0.07964732, 0.0523164 , 0.02458467]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.12917794, -0.12776341, -0.12522709, -0...7, -0.12711478, -0.12880827, -0.1295115 ]), array([-0.0033423 , -0.03123949, -0.05886031, -0...5, 0.07964732, 0.0523164 , 0.02458467])], 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([-0.12917794, -0.12776341, -0.12522709, -0...7, -0.12711478, -0.12880827, -0.1295115 ]), array([-0.0033423 , -0.03123949, -0.05886031, -0...5, 0.07964732, 0.0523164 , 0.02458467])], 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([[-0.12917794, -0.12776341, -0.12522709, -... 0.07964732, 0.0523164 , -0.0033423 ]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1..., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.02055236, 0.04096051, 0.061...2781, 0.93889904, 0.95904695, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=67, 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([[-0.12917794, -0.12776341, -0.12522709, -... 0.07964732, 0.0523164 , -0.0033423 ]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1..., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.02055236, 0.04096051, 0.061...2781, 0.93889904, 0.95904695, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 67, 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>