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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:19:03

Orbital Elements for A758AB
WDS: A758AB WDS ID/Discoverer
P: 270.000 Orbital period (years)
a: 0.304 Semi-major axis (arcseconds)
i: 51.0 Inclination (degrees)
Ω: 115.8 Longitude of ascending node (degrees)
T: 2015.000 Epoch of periastron passage (year)
e: 0.19 Eccentricity
ω: 45.0 Longitude of periastron (degrees)
Start-Year: 1890.0 Year
End-Year: 2160.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A758AB
Position: 210534.47+602933.5 Epoch-2000 right ascension and declination
WDS-ID: 21056+6030 WDS designation
Discoverer Code: A758AB Discover designation and components
ADS number: 14635 Aitken Double Star catalog
HD number: 239570 HD catalog number
Hipparcos number: 104113 Hipparcos catalog number
V1: 9.89 Magnitude of the primary
V2: 10.76 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A758AB
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:19:03 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 = [0.10946688753030367, 0.10416757172397831, 0.09883440842857147, 0.09346906286619736, 0.08807321233752179, 0.08264854669440323, 0.07719676882105715, 0.07171959512358284, 0.06621875602771052, 0.06069599648460498, 0.0551530761931251, 0.04959177117278739, 0.04401387285108741, 0.038421189485308364, 0.032815546499865615, 0.027198787035933095, 0.021572772507441027, 0.015939383163094813, 0.010300518654027951, 0.004658098606658952, ...], y_list = [0.25754775782208833, 0.25721774964896676, 0.2568041615252377, 0.2563069517205231, 0.2557260906208828, 0.2550615609037628, 0.2543133577315809, 0.2534814889642829, 0.2525659753912233, 0.25156685098274933, 0.2504841631028774, 0.24931797300866992, 0.24806835588471549, 0.24673540134641747, 0.24531921375786672, 0.2438199126108822, 0.24223763292709566, 0.240572525683659, 0.2388247582631754, 0.23699451492848164, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.10946688753030367, 0.10416757172397831, 0.09883440842857147, 0.09346906286619736, 0.08807321233752179, 0.08264854669440323, 0.07719676882105715, 0.07171959512358284, 0.06621875602771052, 0.06069599648460498, 0.0551530761931251, 0.04959177117278739, 0.04401387285108741, 0.038421189485308364, 0.032815546499865615, 0.027198787035933095, 0.021572772507441027, 0.015939383163094813, 0.010300518654027951, 0.004658098606658952, ...], y_list=[0.25754775782208833, 0.25721774964896676, 0.2568041615252377, 0.2563069517205231, 0.2557260906208828, 0.2550615609037628, 0.2543133577315809, 0.2534814889642829, 0.2525659753912233, 0.25156685098274933, 0.2504841631028774, 0.24931797300866992, 0.24806835588471549, 0.24673540134641747, 0.24531921375786672, 0.2438199126108822, 0.24223763292709566, 0.240572525683659, 0.2388247582631754, 0.23699451492848164, ...])
    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([-0.25200469, -0.25315647, -0.25414095, -0...3, -0.24757698, -0.24921176, -0.25068873]), y = array([-0.00050442, -0.00577897, -0.01104968, -0...7, 0.01530775, 0.01004228, 0.00477045]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.25200469, -0.25315647, -0.25414095, -0...3, -0.24757698, -0.24921176, -0.25068873]), array([-0.00050442, -0.00577897, -0.01104968, -0...7, 0.01530775, 0.01004228, 0.00477045])], 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([-0.25200469, -0.25315647, -0.25414095, -0...3, -0.24757698, -0.24921176, -0.25068873]), array([-0.00050442, -0.00577897, -0.01104968, -0...7, 0.01530775, 0.01004228, 0.00477045])], 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([[-0.25200469, -0.25315647, -0.25414095, -... 0.01530775, 0.01004228, -0.00050442]]), 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. , 0.00345655, 0.00688943, 0.010...3021, 0.98948493, 0.99301483, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=277, 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([[-0.25200469, -0.25315647, -0.25414095, -... 0.01530775, 0.01004228, -0.00050442]]), 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. , 0.00345655, 0.00688943, 0.010...3021, 0.98948493, 0.99301483, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 277, 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>