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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:23:11

Orbital Elements for HEI676
WDS: HEI676 WDS ID/Discoverer
P: 102.000 Orbital period (years)
a: 0.3988 Semi-major axis (arcseconds)
i: 169.0 Inclination (degrees)
Ω: 301.9 Longitude of ascending node (degrees)
T: 2006.390 Epoch of periastron passage (year)
e: 0.657 Eccentricity
ω: 340.0 Longitude of periastron (degrees)
Start-Year: 1974.0 Year
End-Year: 2076.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI676
Position: 060150.34-715735.3 Epoch-2000 right ascension and declination
WDS-ID: 06018-7158 WDS designation
Discoverer Code: HEI676 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 42081 HD catalog number
Hipparcos number: 28573 Hipparcos catalog number
V1: 10.39 Magnitude of the primary
V2: 11.03 Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HEI676
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:23:11 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 = [-0.5026716654069984, -0.5029694431535283, -0.5026755202561206, -0.5017663852540856, -0.500216584050984, -0.4979984910388692, -0.4950820453909202, -0.49143444594336516, -0.4870197966307932, -0.48179869261723146, -0.4757277349814544, -0.4687589589472091, -0.46083915704844225, -0.45190907411104986, -0.44190244532552403, -0.430744841807241, -0.41835227982511963, -0.404629540558312, -0.38946813749601916, -0.37274386357054257, ...], y_list = [-0.3212719575394058, -0.30704188871143434, -0.29245071925933774, -0.2775017470390066, -0.26219858927184475, -0.2465452841095487, -0.23054641427326136, -0.21420725865744417, -0.19753397956603344, -0.18053385564549168, -0.16321557384247035, -0.14558959820008302, -0.12766863954004862, -0.10946825883587623, -0.0910076495346014, -0.07231066201410885, -0.053407159524579376, -0.03433483367249274, -0.015141665268127146, 0.004110692762092959, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.5026716654069984, -0.5029694431535283, -0.5026755202561206, -0.5017663852540856, -0.500216584050984, -0.4979984910388692, -0.4950820453909202, -0.49143444594336516, -0.4870197966307932, -0.48179869261723146, -0.4757277349814544, -0.4687589589472091, -0.46083915704844225, -0.45190907411104986, -0.44190244532552403, -0.430744841807241, -0.41835227982511963, -0.404629540558312, -0.38946813749601916, -0.37274386357054257, ...], y_list=[-0.3212719575394058, -0.30704188871143434, -0.29245071925933774, -0.2775017470390066, -0.26219858927184475, -0.2465452841095487, -0.23054641427326136, -0.21420725865744417, -0.19753397956603344, -0.18053385564549168, -0.16321557384247035, -0.14558959820008302, -0.12766863954004862, -0.10946825883587623, -0.0910076495346014, -0.07231066201410885, -0.053407159524579376, -0.03433483367249274, -0.015141665268127146, 0.004110692762092959, ...])
    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([-0.38946814, -0.40462954, -0.41835228, -0...5, -0.33401308, -0.35431385, -0.37274386]), y = array([-1.51416653e-02, -3.43348337e-02, -5.3407....24477716e-02, 2.33422033e-02, 4.11069276e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.38946814, -0.40462954, -0.41835228, -0...5, -0.33401308, -0.35431385, -0.37274386]), array([-1.51416653e-02, -3.43348337e-02, -5.3407....24477716e-02, 2.33422033e-02, 4.11069276e-03])], 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([-0.38946814, -0.40462954, -0.41835228, -0...5, -0.33401308, -0.35431385, -0.37274386]), array([-1.51416653e-02, -3.43348337e-02, -5.3407....24477716e-02, 2.33422033e-02, 4.11069276e-03])], 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([[-3.89468137e-01, -4.04629541e-01, -4.183...e-02, 2.33422033e-02, -1.51416653e-02]]), 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. , 0.01116711, 0.02189456, 0.032...244 , 0.9634747 , 0.97620245, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=109, 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([[-3.89468137e-01, -4.04629541e-01, -4.183...e-02, 2.33422033e-02, -1.51416653e-02]]), 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. , 0.01116711, 0.02189456, 0.032...244 , 0.9634747 , 0.97620245, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 109, 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>