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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:59:27

Orbital Elements for FIN338
WDS: FIN338 WDS ID/Discoverer
P: 80.000 Orbital period (years)
a: 0.156 Semi-major axis (arcseconds)
i: 97.0 Inclination (degrees)
Ω: 37.1 Longitude of ascending node (degrees)
T: 2021.700 Epoch of periastron passage (year)
e: 0.454 Eccentricity
ω: 187.6 Longitude of periastron (degrees)
Start-Year: 1985.0 Year
End-Year: 2065.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for FIN338
Position: 103850.33-424512.3 Epoch-2000 right ascension and declination
WDS-ID: 10388-4245 WDS designation
Discoverer Code: FIN338 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 92328 HD catalog number
Hipparcos number: 52112 Hipparcos catalog number
V1: 6.82 Magnitude of the primary
V2: 7.20 Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for FIN338
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:59:27 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 = [-0.1269054096918025, -0.12458873114949377, -0.1220155960910265, -0.11918794099626243, -0.11610761429934938, -0.1127764035079034, -0.10919606636289046, -0.1053683671267119, -0.101295119360216, -0.09697823690035477, -0.09241979520364221, -0.08762210580941375, -0.08258780744547085, -0.0773199782288641, -0.07182227519339236, -0.06609910798040049, -0.06015585755732866, -0.05399915244978647, -0.047637219968943864, -0.041080335271730745, ...], y_list = [0.17873725845038116, 0.17710925323617718, 0.17511667517549204, 0.1727588014727255, 0.17003467816711437, 0.166943132485413, 0.1634827885593429, 0.15965208750858173, 0.15544931319130031, 0.15087262531534795, 0.14592010211509313, 0.14058979547366268, 0.13487980226529275, 0.12878835679557482, 0.1223139513410895, 0.1154554926181331, 0.10821250688574557, 0.10058540865645973, 0.0925758543920442, 0.08418720978675699, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.1269054096918025, -0.12458873114949377, -0.1220155960910265, -0.11918794099626243, -0.11610761429934938, -0.1127764035079034, -0.10919606636289046, -0.1053683671267119, -0.101295119360216, -0.09697823690035477, -0.09241979520364221, -0.08762210580941375, -0.08258780744547085, -0.0773199782288641, -0.07182227519339236, -0.06609910798040049, -0.06015585755732866, -0.05399915244978647, -0.047637219968943864, -0.041080335271730745, ...], y_list=[0.17873725845038116, 0.17710925323617718, 0.17511667517549204, 0.1727588014727255, 0.17003467816711437, 0.166943132485413, 0.1634827885593429, 0.15965208750858173, 0.15544931319130031, 0.15087262531534795, 0.14592010211509313, 0.14058979547366268, 0.13487980226529275, 0.12878835679557482, 0.1223139513410895, 0.1154554926181331, 0.10821250688574557, 0.10058540865645973, 0.0925758543920442, 0.08418720978675699, ...])
    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([-0.01674964, -0.00737311, 0.00211542, 0...7, -0.04327552, -0.03476275, -0.02590442]), y = array([-0.0021223 , -0.01329528, -0.02425441, -0...9, 0.03109119, 0.02018677, 0.00908307]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.01674964, -0.00737311, 0.00211542, 0...7, -0.04327552, -0.03476275, -0.02590442]), array([-0.0021223 , -0.01329528, -0.02425441, -0...9, 0.03109119, 0.02018677, 0.00908307])], 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([-0.01674964, -0.00737311, 0.00211542, 0...7, -0.04327552, -0.03476275, -0.02590442]), array([-0.0021223 , -0.01329528, -0.02425441, -0...9, 0.03109119, 0.02018677, 0.00908307])], 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([[-0.01674964, -0.00737311, 0.00211542, ... 0.03109119, 0.02018677, -0.0021223 ]]), 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. , 0.02300292, 0.04586378, 0.068...471 , 0.93296425, 0.95478072, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=87, 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([[-0.01674964, -0.00737311, 0.00211542, ... 0.03109119, 0.02018677, -0.0021223 ]]), 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. , 0.02300292, 0.04586378, 0.068...471 , 0.93296425, 0.95478072, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 87, 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>