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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:16:42

Orbital Elements for I425
WDS: I425 WDS ID/Discoverer
P: 250.000 Orbital period (years)
a: 0.754 Semi-major axis (arcseconds)
i: 77.2 Inclination (degrees)
Ω: 129.9 Longitude of ascending node (degrees)
T: 2050.086 Epoch of periastron passage (year)
e: 0.75 Eccentricity
ω: 39.7 Longitude of periastron (degrees)
Start-Year: 1900.0 Year
End-Year: 2150.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I425
Position: 131728.71-403238.9 Epoch-2000 right ascension and declination
WDS-ID: 13175-4033 WDS designation
Discoverer Code: I425 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 115370 HD catalog number
Hipparcos number: 64835 Hipparcos catalog number
V1: 9.90 Magnitude of the primary
V2: 10.05 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for I425
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:16:42 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 = [0.7407651194312543, 0.7385692556752134, 0.7362792341047568, 0.7338959551531924, 0.7314202959165808, 0.7288531109145497, 0.7261952328197718, 0.7234474731577724, 0.7206106229786359, 0.7176854535020986, 0.7146727167374188, 0.7115731460793536, 0.7083874568814912, 0.7051163470081233, 0.7017604973657837, 0.6983205724155154, 0.6947972206668864, 0.6911910751547146, 0.6875027538994175, 0.6837328602794621, ...], y_list = [0.8142658570240475, 0.8146786241905085, 0.8149875310052439, 0.8151932116004654, 0.8152962788558833, 0.8152973249280135, 0.8151969217548943, 0.8149956215373241, 0.8146939571976618, 0.8142924428171678, 0.8137915740528083, 0.8131918285343859, 0.812493666242814, 0.8116975298702994, 0.810803845163155, 0.809813021247915, 0.8087254509414008, 0.8075415110453262, 0.80626156262601, 0.8048859512526797, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.7407651194312543, 0.7385692556752134, 0.7362792341047568, 0.7338959551531924, 0.7314202959165808, 0.7288531109145497, 0.7261952328197718, 0.7234474731577724, 0.7206106229786359, 0.7176854535020986, 0.7146727167374188, 0.7115731460793536, 0.7083874568814912, 0.7051163470081233, 0.7017604973657837, 0.6983205724155154, 0.6947972206668864, 0.6911910751547146, 0.6875027538994175, 0.6837328602794621, ...], y_list=[0.8142658570240475, 0.8146786241905085, 0.8149875310052439, 0.8151932116004654, 0.8152962788558833, 0.8152973249280135, 0.8151969217548943, 0.8149956215373241, 0.8146939571976618, 0.8142924428171678, 0.8137915740528083, 0.8131918285343859, 0.812493666242814, 0.8116975298702994, 0.810803845163155, 0.809813021247915, 0.8087254509414008, 0.8075415110453262, 0.80626156262601, 0.8048859512526797, ...])
    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([-0.1628433 , -0.16984214, -0.17635668, -0...2, -0.13963443, -0.14768186, -0.15543564]), y = array([-0.00357116, -0.01657684, -0.02953448, -0...8, 0.03538978, 0.02243902, 0.00944415]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.1628433 , -0.16984214, -0.17635668, -0...2, -0.13963443, -0.14768186, -0.15543564]), array([-0.00357116, -0.01657684, -0.02953448, -0...8, 0.03538978, 0.02243902, 0.00944415])], 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([-0.1628433 , -0.16984214, -0.17635668, -0...2, -0.13963443, -0.14768186, -0.15543564]), array([-0.00357116, -0.01657684, -0.02953448, -0...8, 0.03538978, 0.02243902, 0.00944415])], 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([[-0.1628433 , -0.16984214, -0.17635668, -... 0.03538978, 0.02243902, -0.00357116]]), 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. , 0.00531653, 0.01053723, 0.015...5633, 0.98367388, 0.98916252, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=257, 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([[-0.1628433 , -0.16984214, -0.17635668, -... 0.03538978, 0.02243902, -0.00357116]]), 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. , 0.00531653, 0.01053723, 0.015...5633, 0.98367388, 0.98916252, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 257, 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>