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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:00:28

Orbital Elements for HEI498
WDS: HEI498 WDS ID/Discoverer
P: 60.000 Orbital period (years)
a: 0.118 Semi-major axis (arcseconds)
i: 120.1 Inclination (degrees)
Ω: 294.1 Longitude of ascending node (degrees)
T: 2022.800 Epoch of periastron passage (year)
e: 0.105 Eccentricity
ω: 170.7 Longitude of periastron (degrees)
Start-Year: 1995.0 Year
End-Year: 2055.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI498
Position: 104859.98-744913.2 Epoch-2000 right ascension and declination
WDS-ID: 10490-7449 WDS designation
Discoverer Code: HEI498 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 94081 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.8 Magnitude of the primary
V2: 9.8 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HEI498
--> -->
 
 
ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:00:28 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 = [0.11942187576920808, 0.12072787430695218, 0.12104017244111175, 0.12034680284917287, 0.11864159032183137, 0.11592450195224765, 0.1122020763673218, 0.10748793237930288, 0.10180335418876833, 0.09517794801222688, 0.08765035915936796, 0.07926903268308633, 0.07009299217568782, 0.06019260080682638, 0.049650256086208246, 0.03856095543694562, 0.02703265431402276, 0.015186323822297856, 0.003155602968914179, -0.008914064857084545, ...], y_list = [0.05159148945020959, 0.04607451765654181, 0.0401783779443164, 0.033948503009074135, 0.02743330948502061, 0.020684276934201884, 0.013756025485733523, 0.00670638173011225, -0.00040358141836159707, -0.007509545600255131, -0.014544008634751226, -0.021436429271559802, -0.028113481430289664, -0.034499447618826874, -0.04051678378971899, -0.04608688885480083, -0.05113111038232619, -0.0555720123731741, -0.059334920071452316, -0.062349739259846805, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.11942187576920808, 0.12072787430695218, 0.12104017244111175, 0.12034680284917287, 0.11864159032183137, 0.11592450195224765, 0.1122020763673218, 0.10748793237930288, 0.10180335418876833, 0.09517794801222688, 0.08765035915936796, 0.07926903268308633, 0.07009299217568782, 0.06019260080682638, 0.049650256086208246, 0.03856095543694562, 0.02703265431402276, 0.015186323822297856, 0.003155602968914179, -0.008914064857084545, ...], y_list=[0.05159148945020959, 0.04607451765654181, 0.0401783779443164, 0.033948503009074135, 0.02743330948502061, 0.020684276934201884, 0.013756025485733523, 0.00670638173011225, -0.00040358141836159707, -0.007509545600255131, -0.014544008634751226, -0.021436429271559802, -0.028113481430289664, -0.034499447618826874, -0.04051678378971899, -0.04608688885480083, -0.05113111038232619, -0.0555720123731741, -0.059334920071452316, -0.062349739259846805, ...])
    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([-0.09334013, -0.09682118, -0.09891165, -0...5, -0.07545761, -0.08255123, -0.08855015]), y = array([-0.00666646, -0.0146877 , -0.0224976 , -0...9, 0.01751465, 0.00954468, 0.00144874]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.09334013, -0.09682118, -0.09891165, -0...5, -0.07545761, -0.08255123, -0.08855015]), array([-0.00666646, -0.0146877 , -0.0224976 , -0...9, 0.01751465, 0.00954468, 0.00144874])], 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([-0.09334013, -0.09682118, -0.09891165, -0...5, -0.07545761, -0.08255123, -0.08855015]), array([-0.00666646, -0.0146877 , -0.0224976 , -0...9, 0.01751465, 0.00954468, 0.00144874])], 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([[-0.09334013, -0.09682118, -0.09891165, -... 0.01751465, 0.00954468, -0.00666646]]), 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. , 0.01531596, 0.02947727, 0.042...1779, 0.94720241, 0.96589113, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=67, 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([[-0.09334013, -0.09682118, -0.09891165, -... 0.01751465, 0.00954468, -0.00666646]]), 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. , 0.01531596, 0.02947727, 0.042...1779, 0.94720241, 0.96589113, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 67, 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>