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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 16:18:30

Orbital Elements for A1256AB
WDS: A1256AB WDS ID/Discoverer
P: 330.000 Orbital period (years)
a: 0.29 Semi-major axis (arcseconds)
i: 73.8 Inclination (degrees)
Ω: 64.3 Longitude of ascending node (degrees)
T: 1995.500 Epoch of periastron passage (year)
e: 0.715 Eccentricity
ω: 78.1 Longitude of periastron (degrees)
Start-Year: 1860.0 Year
End-Year: 2190.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1256AB
Position: 001517.83+441212.2 Epoch-2000 right ascension and declination
WDS-ID: 00153+4412 WDS designation
Discoverer Code: A1256AB Discover designation and components
ADS number: 197 Aitken Double Star catalog
HD number: 1082 HD catalog number
Hipparcos number: 1233 Hipparcos catalog number
V1: 7.3 Magnitude of the primary
V2: 7.5 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1991 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A1256AB
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 16:18:30 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 = [0.09024366101344432, 0.08804914246323402, 0.08584781645917161, 0.08363982015507476, 0.0814252916274732, 0.07920436994887932, 0.07697719526298322, 0.07474390886188544, 0.07250465326549234, 0.07025957230320985, 0.06800881119806225, 0.06575251665338439, 0.06349083694223878, 0.061223921999713514, 0.05895192351826759, 0.05667499504630444, 0.05439329209015709, 0.05210697221967539, 0.04981619517764023, 0.04752112299320529, ...], y_list = [0.10670248519286572, 0.10756858947286638, 0.10842637694438913, 0.10927573954338912, 0.11011656751363506, 0.11094874935044578, 0.11177217174270306, 0.11258671951306005, 0.11339227555625782, 0.11418872077545571, 0.11497593401648516, 0.11575379199992354, 0.11652216925088253, 0.11728093802640174, 0.1180299682403314, 0.11876912738557896, 0.11949828045359302, 0.1202172898509511, 0.12092601531290015, 0.12162431381370863, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.09024366101344432, 0.08804914246323402, 0.08584781645917161, 0.08363982015507476, 0.0814252916274732, 0.07920436994887932, 0.07697719526298322, 0.07474390886188544, 0.07250465326549234, 0.07025957230320985, 0.06800881119806225, 0.06575251665338439, 0.06349083694223878, 0.061223921999713514, 0.05895192351826759, 0.05667499504630444, 0.05439329209015709, 0.05210697221967539, 0.04981619517764023, 0.04752112299320529, ...], y_list=[0.10670248519286572, 0.10756858947286638, 0.10842637694438913, 0.10927573954338912, 0.11011656751363506, 0.11094874935044578, 0.11177217174270306, 0.11258671951306005, 0.11339227555625782, 0.11418872077545571, 0.11497593401648516, 0.11575379199992354, 0.11652216925088253, 0.11728093802640174, 0.1180299682403314, 0.11876912738557896, 0.11949828045359302, 0.1202172898509511, 0.12092601531290015, 0.12162431381370863, ...])
    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([-0.0420088 , -0.03089095, -0.01929379, -0...3, -0.07119028, -0.06224459, -0.0524964 ]), y = array([-0.00309587, -0.00969223, -0.01613777, -0...2, 0.01660778, 0.01014265, 0.00354784]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.0420088 , -0.03089095, -0.01929379, -0...3, -0.07119028, -0.06224459, -0.0524964 ]), array([-0.00309587, -0.00969223, -0.01613777, -0...2, 0.01660778, 0.01014265, 0.00354784])], 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([-0.0420088 , -0.03089095, -0.01929379, -0...3, -0.07119028, -0.06224459, -0.0524964 ]), array([-0.00309587, -0.00969223, -0.01613777, -0...2, 0.01660778, 0.01014265, 0.00354784])], 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([[-0.0420088 , -0.03089095, -0.01929379, -... 0.01660778, 0.01014265, -0.00309587]]), 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. , 0.01366128, 0.02768244, 0.041...3591, 0.96278187, 0.97444578, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=337, 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([[-0.0420088 , -0.03089095, -0.01929379, -... 0.01660778, 0.01014265, -0.00309587]]), 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. , 0.01366128, 0.02768244, 0.041...3591, 0.96278187, 0.97444578, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 337, 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>