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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:32:28

Orbital Elements for TOK301AA,AB
WDS: TOK301AA,AB WDS ID/Discoverer
P: 70.000 Orbital period (years)
a: 0.374 Semi-major axis (arcseconds)
i: 144.7 Inclination (degrees)
Ω: 320.3 Longitude of ascending node (degrees)
T: 2016.260 Epoch of periastron passage (year)
e: 0.42 Eccentricity
ω: 275.5 Longitude of periastron (degrees)
Start-Year: 1990.0 Year
End-Year: 2060.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for TOK301AA,AB
Position: 153612.81-062318.3 Epoch-2000 right ascension and declination
WDS-ID: 15362-0623 WDS designation
Discoverer Code: TOK301AA,AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 139059 HD catalog number
Hipparcos number: 76400 Hipparcos catalog number
V1: 7.9 Magnitude of the primary
V2: 12. Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for TOK301AA,AB
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:32:28 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 = [0.14141691675457949, 0.12052405305382453, 0.0992279347681775, 0.07758668028644722, 0.05566368453265695, 0.033528774232867826, 0.011259593041945723, -0.01105672641923972, -0.03332152950947281, -0.055422159124381414, -0.07722891037256271, -0.09859128503921609, -0.11933337839459156, -0.13924820746704594, -0.15809077941399838, -0.17556972730736423, -0.1913374579547302, -0.20497905803514685, -0.21600086578176125, -0.22382093062649405, ...], y_list = [-0.4100565038272738, -0.4151964048271005, -0.4189455293674668, -0.42123521618679244, -0.42199191901799943, -0.42113666217073153, -0.41858446941174055, -0.4142437778871797, -0.4080158598262295, -0.39979429033786706, -0.38946452763908734, -0.37690371238944015, -0.36198085909040983, -0.3445577150925736, -0.32449072305242116, -0.3016347701085499, -0.27584978216956596, -0.24701177185671727, -0.2150307064096189, -0.17987847764997203, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.14141691675457949, 0.12052405305382453, 0.0992279347681775, 0.07758668028644722, 0.05566368453265695, 0.033528774232867826, 0.011259593041945723, -0.01105672641923972, -0.03332152950947281, -0.055422159124381414, -0.07722891037256271, -0.09859128503921609, -0.11933337839459156, -0.13924820746704594, -0.15809077941399838, -0.17556972730736423, -0.1913374579547302, -0.20497905803514685, -0.21600086578176125, -0.22382093062649405, ...], y_list=[-0.4100565038272738, -0.4151964048271005, -0.4189455293674668, -0.42123521618679244, -0.42199191901799943, -0.42113666217073153, -0.41858446941174055, -0.4142437778871797, -0.4080158598262295, -0.39979429033786706, -0.38946452763908734, -0.37690371238944015, -0.36198085909040983, -0.3445577150925736, -0.32449072305242116, -0.3016347701085499, -0.27584978216956596, -0.24701177185671727, -0.2150307064096189, -0.17987847764997203, ...])
    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([-0.20871923, -0.22098203, -0.22708341, -0...7, -0.13163467, -0.16391327, -0.18974812]), y = array([-0.01201658, -0.05705302, -0.10052839, -0...6, 0.11860936, 0.07752725, 0.03337424]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.20871923, -0.22098203, -0.22708341, -0...7, -0.13163467, -0.16391327, -0.18974812]), array([-0.01201658, -0.05705302, -0.10052839, -0...6, 0.11860936, 0.07752725, 0.03337424])], 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([-0.20871923, -0.22098203, -0.22708341, -0...7, -0.13163467, -0.16391327, -0.18974812]), array([-0.01201658, -0.05705302, -0.10052839, -0...6, 0.11860936, 0.07752725, 0.03337424])], 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([[-0.20871923, -0.22098203, -0.22708341, -... 0.11860936, 0.07752725, -0.01201658]]), 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. , 0.02304068, 0.04471171, 0.065...8864, 0.92478357, 0.95057374, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=77, 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([[-0.20871923, -0.22098203, -0.22708341, -... 0.11860936, 0.07752725, -0.01201658]]), 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. , 0.02304068, 0.04471171, 0.065...8864, 0.92478357, 0.95057374, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 77, 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>