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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:36:06

Orbital Elements for HDS1103
WDS: HDS1103 WDS ID/Discoverer
P: 70.000 Orbital period (years)
a: 0.222 Semi-major axis (arcseconds)
i: 113.5 Inclination (degrees)
Ω: 318.5 Longitude of ascending node (degrees)
T: 2029.230 Epoch of periastron passage (year)
e: 0.3 Eccentricity
ω: 172.1 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 HDS1103
Position: 074804.93-542506.0 Epoch-2000 right ascension and declination
WDS-ID: 07481-5425 WDS designation
Discoverer Code: HDS1103 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 63854 HD catalog number
Hipparcos number: 36068 Hipparcos catalog number
V1: 9.20 Magnitude of the primary
V2: 10.52 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: Flags

Double Star Orbit for HDS1103
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:36:06 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 = [0.1480822029489966, 0.15601973579654418, 0.16337521670710944, 0.17012667464686018, 0.17625271977817347, 0.1817323784641769, 0.1865449493259104, 0.19066987868221139, 0.19408665419160404, 0.19677471607988725, 0.1987133866235624, 0.19988181887327042, 0.20025896715202357, 0.19982358289783006, 0.19855424107286665, 0.19642940433987094, 0.1934275347333718, 0.18952726578893198, 0.18470765224934524, 0.17894851980217538, ...], y_list = [0.22692641209774836, 0.2277339535015299, 0.22769183198739812, 0.22680785230337736, 0.22509006611741306, 0.22254678373997241, 0.21918660988433203, 0.21501850337878456, 0.2100518615929804, 0.20429663158673025, 0.1977634504277816, 0.1904638189759925, 0.18241031410210667, 0.17361684607511826, 0.16409896949172806, 0.15387425818023745, 0.14296275694821703, 0.1313875259339073, 0.1191752967173627, 0.10635726326694168, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.1480822029489966, 0.15601973579654418, 0.16337521670710944, 0.17012667464686018, 0.17625271977817347, 0.1817323784641769, 0.1865449493259104, 0.19066987868221139, 0.19408665419160404, 0.19677471607988725, 0.1987133866235624, 0.19988181887327042, 0.20025896715202357, 0.19982358289783006, 0.19855424107286665, 0.19642940433987094, 0.1934275347333718, 0.18952726578893198, 0.18470765224934524, 0.17894851980217538, ...], y_list=[0.22692641209774836, 0.2277339535015299, 0.22769183198739812, 0.22680785230337736, 0.22509006611741306, 0.22254678373997241, 0.21918660988433203, 0.21501850337878456, 0.2100518615929804, 0.20429663158673025, 0.1977634504277816, 0.1904638189759925, 0.18241031410210667, 0.17361684607511826, 0.16409896949172806, 0.15387425818023745, 0.14296275694821703, 0.1313875259339073, 0.1191752967173627, 0.10635726326694168, ...])
    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([-0.09829195, -0.10577064, -0.11171977, -0...2, -0.06898012, -0.07968387, -0.08952212]), y = array([-0.00546988, -0.02296625, -0.04012682, -0...3, 0.04664671, 0.02953294, 0.01210196]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.09829195, -0.10577064, -0.11171977, -0...2, -0.06898012, -0.07968387, -0.08952212]), array([-0.00546988, -0.02296625, -0.04012682, -0...3, 0.04664671, 0.02953294, 0.01210196])], 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([-0.09829195, -0.10577064, -0.11171977, -0...2, -0.06898012, -0.07968387, -0.08952212]), array([-0.00546988, -0.02296625, -0.04012682, -0...3, 0.04664671, 0.02953294, 0.01210196])], 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([[-0.09829195, -0.10577064, -0.11171977, -... 0.04664671, 0.02953294, -0.00546988]]), 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. , 0.01882257, 0.03678928, 0.053...5965, 0.94081798, 0.96078577, 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([[-0.09829195, -0.10577064, -0.11171977, -... 0.04664671, 0.02953294, -0.00546988]]), 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. , 0.01882257, 0.03678928, 0.053...5965, 0.94081798, 0.96078577, 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>