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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:03:52

Orbital Elements for COU1524
WDS: COU1524 WDS ID/Discoverer
P: 200.000 Orbital period (years)
a: 0.272 Semi-major axis (arcseconds)
i: 78.5 Inclination (degrees)
Ω: 22.7 Longitude of ascending node (degrees)
T: 1996.930 Epoch of periastron passage (year)
e: 0.232 Eccentricity
ω: 187.9 Longitude of periastron (degrees)
Start-Year: 1925.0 Year
End-Year: 2125.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for COU1524
Position: 044432.97+395232.0 Epoch-2000 right ascension and declination
WDS-ID: 04445+3953 WDS designation
Discoverer Code: COU1524 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 29911 HD catalog number
Hipparcos number: 22050 Hipparcos catalog number
V1: 8.83 Magnitude of the primary
V2: 9.68 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2011 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for COU1524
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:03:52 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 = [-0.13121941159641912, -0.12988863109457452, -0.12847761798736157, -0.12698635390754293, -0.125414849213373, -0.1237631448984522, -0.12203131464441438, -0.1202194670248059, -0.11832774786894407, -0.1163563427949763, -0.11430547992177773, -0.1121754327697308, -0.10996652336081095, -0.10767912552874573, -0.10531366845031384, -0.10287064040909168, -0.10035059280311358, -0.09775414440797729, -0.09508198590687048, -0.0923348846987967, ...], y_list = [0.2047449684941319, 0.1992338370889712, 0.1935996422468386, 0.18784452340892305, 0.18197071305888388, 0.1759805416963294, 0.16987644307155722, 0.1636609596916922, 0.1573367486083109, 0.15090658749652922, 0.14437338103525532, 0.13774016759791266, 0.13101012626236566, 0.1241865841479813, 0.11727302408674758, 0.11027309263407005, 0.10319060842324138, 0.09602957086558284, 0.08879416919583699, 0.08148879185948986, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.13121941159641912, -0.12988863109457452, -0.12847761798736157, -0.12698635390754293, -0.125414849213373, -0.1237631448984522, -0.12203131464441438, -0.1202194670248059, -0.11832774786894407, -0.1163563427949763, -0.11430547992177773, -0.1121754327697308, -0.10996652336081095, -0.10767912552874573, -0.10531366845031384, -0.10287064040909168, -0.10035059280311358, -0.09775414440797729, -0.09508198590687048, -0.0923348846987967, ...], y_list=[0.2047449684941319, 0.1992338370889712, 0.1935996422468386, 0.18784452340892305, 0.18197071305888388, 0.1759805416963294, 0.16987644307155722, 0.1636609596916922, 0.1573367486083109, 0.15090658749652922, 0.14437338103525532, 0.13774016759791266, 0.13101012626236566, 0.1241865841479813, 0.11727302408674758, 0.11027309263407005, 0.10319060842324138, 0.09602957086558284, 0.08879416919583699, 0.08148879185948986, ...])
    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([-5.74836788e-02, -5.39329411e-02, -5.0326...23e-02, -6.44102357e-02, -6.09768355e-02]), y = array([-0.00200357, -0.00971972, -0.01742588, -0...3, 0.02112699, 0.01342723, 0.00571462]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-5.74836788e-02, -5.39329411e-02, -5.0326...23e-02, -6.44102357e-02, -6.09768355e-02]), array([-0.00200357, -0.00971972, -0.01742588, -0...3, 0.02112699, 0.01342723, 0.00571462])], 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([-5.74836788e-02, -5.39329411e-02, -5.0326...23e-02, -6.44102357e-02, -6.09768355e-02]), array([-0.00200357, -0.00971972, -0.01742588, -0...3, 0.02112699, 0.01342723, 0.00571462])], 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([[-5.74836788e-02, -5.39329411e-02, -5.032...11269865e-02, 1.34272279e-02, -2.00357038e-03]]), 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. , 0.00745266, 0.01491777, 0.022...4725, 0.97778422, 0.98515939, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=207, 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([[-5.74836788e-02, -5.39329411e-02, -5.032...11269865e-02, 1.34272279e-02, -2.00357038e-03]]), 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. , 0.00745266, 0.01491777, 0.022...4725, 0.97778422, 0.98515939, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 207, 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>