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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:28:52

Orbital Elements for HDS3092
WDS: HDS3092 WDS ID/Discoverer
P: 300.000 Orbital period (years)
a: 0.894 Semi-major axis (arcseconds)
i: 78.8 Inclination (degrees)
Ω: 15.1 Longitude of ascending node (degrees)
T: 1934.920 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1875.0 Year
End-Year: 2175.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3092
Position: 214235.53+023319.5 Epoch-2000 right ascension and declination
WDS-ID: 21426+0233 WDS designation
Discoverer Code: HDS3092 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 107181 Hipparcos catalog number
V1: 11.75 Magnitude of the primary
V2: 13.26 Magnitude of the secondary
Equinox: 2000 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 HDS3092
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:28:52 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 = [0.08701928678744518, 0.08127359335433866, 0.07549225063706978, 0.06967779452362904, 0.06383277542663782, 0.05795975716465132, 0.052061315837584755, 0.04614003869674896, 0.04019852300999853, 0.03423937492248226, 0.02826520831350284, 0.022278643649983262, 0.016282306837042973, 0.01027882806618868, 0.004270840661625915, -0.0017390200748034468, -0.007748118019553087, -0.013753817383661389, -0.019753483868897567, -0.02574448582324989, ...], y_list = [0.3110956332059401, 0.32791514572027175, 0.34459082381399275, 0.36111535298355646, 0.377481485024327, 0.3936820412098867, 0.409709915440858, 0.42555807736187823, 0.4412195754453409, 0.45668754004057005, 0.4719551863870736, 0.48701581759056306, 0.5018628275604334, 0.5164897039074142, 0.5308900308001174, 0.5450574917792317, 0.5589858725281336, 0.5726690635986881, 0.5861010630910594, 0.599275979286337, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.08701928678744518, 0.08127359335433866, 0.07549225063706978, 0.06967779452362904, 0.06383277542663782, 0.05795975716465132, 0.052061315837584755, 0.04614003869674896, 0.04019852300999853, 0.03423937492248226, 0.02826520831350284, 0.022278643649983262, 0.016282306837042973, 0.01027882806618868, 0.004270840661625915, -0.0017390200748034468, -0.007748118019553087, -0.013753817383661389, -0.019753483868897567, -0.02574448582324989, ...], y_list=[0.3110956332059401, 0.32791514572027175, 0.34459082381399275, 0.36111535298355646, 0.377481485024327, 0.3936820412098867, 0.409709915440858, 0.42555807736187823, 0.4412195754453409, 0.45668754004057005, 0.4719551863870736, 0.48701581759056306, 0.5018628275604334, 0.5164897039074142, 0.5308900308001174, 0.5450574917792317, 0.5589858725281336, 0.5726690635986881, 0.5861010630910594, 0.599275979286337, ...])
    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([-0.17687704, -0.17210603, -0.16725954, -0... , -0.19071634, -0.18618423, -0.18157046]), y = array([-0.0104996 , -0.02859686, -0.04668157, -0...7, 0.04378803, 0.02570078, 0.00760225]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.17687704, -0.17210603, -0.16725954, -0... , -0.19071634, -0.18618423, -0.18157046]), array([-0.0104996 , -0.02859686, -0.04668157, -0...7, 0.04378803, 0.02570078, 0.00760225])], 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([-0.17687704, -0.17210603, -0.16725954, -0... , -0.19071634, -0.18618423, -0.18157046]), array([-0.0104996 , -0.02859686, -0.04668157, -0...7, 0.04378803, 0.02570078, 0.00760225])], 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([[-0.17687704, -0.17210603, -0.16725954, -... 0.04378803, 0.02570078, -0.0104996 ]]), 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. , 0.00499328, 0.00998851, 0.014...884 , 0.98505287, 0.9900277 , 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=307, 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([[-0.17687704, -0.17210603, -0.16725954, -... 0.04378803, 0.02570078, -0.0104996 ]]), 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. , 0.00499328, 0.00998851, 0.014...884 , 0.98505287, 0.9900277 , 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 307, 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>