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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:15:42

Orbital Elements for BU609
WDS: BU609 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 0.627 Semi-major axis (arcseconds)
i: 96.5 Inclination (degrees)
Ω: 173.8 Longitude of ascending node (degrees)
T: 2026.700 Epoch of periastron passage (year)
e: 0.594 Eccentricity
ω: 327.6 Longitude of periastron (degrees)
Start-Year: 1775.0 Year
End-Year: 2275.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU609
Position: 131042.41-045630.5 Epoch-2000 right ascension and declination
WDS-ID: 13107-0457 WDS designation
Discoverer Code: BU609 Discover designation and components
ADS number: 8807 Aitken Double Star catalog
HD number: 114449 HD catalog number
Hipparcos number: 64296 Hipparcos catalog number
V1: 7.82 Magnitude of the primary
V2: 10.14 Magnitude of the secondary
Equinox: 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 BU609
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:15:42 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 = [0.029831730516795787, 0.030441119258165658, 0.031049321073053967, 0.03165631226367273, 0.03226206909433223, 0.032866567787418734, 0.03346978451936491, 0.0340716954166067, 0.034672276551527575, 0.03527150393838469, 0.03586935352921591, 0.036465801209724556, 0.037060822795137054, 0.03765439402603526, 0.038246490564154745, 0.03883708798815281, 0.03942616178933852, 0.040013687367365436, 0.040599640092968355, 0.04118399506957409, ...], y_list = [0.8418861759224229, 0.8440028543495202, 0.846086624345361, 0.8481374051193666, 0.8501551148717049, 0.8521396707794578, 0.8540909889826462, 0.8560089845700957, 0.8578935715651475, 0.8597446629111953, 0.8615621704570501, 0.8633460049421172, 0.8650960759813847, 0.8668122920502178, 0.8684945604689458, 0.8701427873872482, 0.8717568777683269, 0.8733367353728658, 0.8748822629179853, 0.876393361444342, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.029831730516795787, 0.030441119258165658, 0.031049321073053967, 0.03165631226367273, 0.03226206909433223, 0.032866567787418734, 0.03346978451936491, 0.0340716954166067, 0.034672276551527575, 0.03527150393838469, 0.03586935352921591, 0.036465801209724556, 0.037060822795137054, 0.03765439402603526, 0.038246490564154745, 0.03883708798815281, 0.03942616178933852, 0.040013687367365436, 0.040599640092968355, 0.04118399506957409, ...], y_list=[0.8418861759224229, 0.8440028543495202, 0.846086624345361, 0.8481374051193666, 0.8501551148717049, 0.8521396707794578, 0.8540909889826462, 0.8560089845700957, 0.8578935715651475, 0.8597446629111953, 0.8615621704570501, 0.8633460049421172, 0.8650960759813847, 0.8668122920502178, 0.8684945604689458, 0.8701427873872482, 0.8717568777683269, 0.8733367353728658, 0.8748822629179853, 0.876393361444342, ...])
    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([-0.06726977, -0.06740863, -0.06753413, -0...7, -0.06677663, -0.06695343, -0.06711792]), y = array([-0.00481052, -0.01150815, -0.01820349, -0...1, 0.0152829 , 0.00858626, 0.00188804]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.06726977, -0.06740863, -0.06753413, -0...7, -0.06677663, -0.06695343, -0.06711792]), array([-0.00481052, -0.01150815, -0.01820349, -0...1, 0.0152829 , 0.00858626, 0.00188804])], 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([-0.06726977, -0.06740863, -0.06753413, -0...7, -0.06677663, -0.06695343, -0.06711792]), array([-0.00481052, -0.01150815, -0.01820349, -0...1, 0.0152829 , 0.00858626, 0.00188804])], 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([[-0.06726977, -0.06740863, -0.06753413, .... 0.0152829 , 0.00858626, -0.00481052]]), 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. , 0.00277177, 0.00554249, 0.008...13 , 0.99168374, 0.99445547, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=507, 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([[-0.06726977, -0.06740863, -0.06753413, .... 0.0152829 , 0.00858626, -0.00481052]]), 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. , 0.00277177, 0.00554249, 0.008...13 , 0.99168374, 0.99445547, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 507, 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>