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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:30:13

Orbital Elements for STT159AB
WDS: STT159AB WDS ID/Discoverer
P: 262.000 Orbital period (years)
a: 1.19 Semi-major axis (arcseconds)
i: 78.0 Inclination (degrees)
Ω: 43.4 Longitude of ascending node (degrees)
T: 1992.680 Epoch of periastron passage (year)
e: 0.74 Eccentricity
ω: 98.0 Longitude of periastron (degrees)
Start-Year: 1894.0 Year
End-Year: 2156.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT159AB
Position: 065716.60+582523.0 Epoch-2000 right ascension and declination
WDS-ID: 06573+5825 WDS designation
Discoverer Code: STT159AB Discover designation and components
ADS number: 5586 Aitken Double Star catalog
HD number: 50522 HD catalog number
Hipparcos number: 33449 Hipparcos catalog number
V1: 4.45 Magnitude of the primary
V2: 5.5 Magnitude of the secondary
Equinox: Equinox
Date: 2000 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT159AB
--> -->
 
 
ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:30:13 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 = [-0.13987232452005513, -0.14753868648004378, -0.155186529722338, -0.16281472162235772, -0.17042210713160877, -0.1780075075968169, -0.1855697198753437, -0.19310751380404154, -0.20061963252381954, -0.20810479003615193, -0.21556166994871478, -0.22298892390941594, -0.23038516995973124, -0.23774899080167827, -0.24507893197230715, -0.25237349991911306, -0.25963115996922337, -0.26685033418465864, -0.2740293990953042, -0.2811666833005303, ...], y_list = [0.717854608915224, 0.7232475052717603, 0.72854962713721, 0.7337594982727194, 0.7388756067761119, 0.743896403599049, 0.7488203012215756, 0.7536456712219899, 0.7583708436700933, 0.7629941046715061, 0.7675136946491756, 0.7719278063759768, 0.7762345829073314, 0.7804321154072672, 0.7845184408608201, 0.7884915396651544, 0.7923493330911631, 0.7960896806066867, 0.7997103770517627, 0.803209149655536, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.13987232452005513, -0.14753868648004378, -0.155186529722338, -0.16281472162235772, -0.17042210713160877, -0.1780075075968169, -0.1855697198753437, -0.19310751380404154, -0.20061963252381954, -0.20810479003615193, -0.21556166994871478, -0.22298892390941594, -0.23038516995973124, -0.23774899080167827, -0.24507893197230715, -0.25237349991911306, -0.25963115996922337, -0.26685033418465864, -0.2740293990953042, -0.2811666833005303, ...], y_list=[0.717854608915224, 0.7232475052717603, 0.72854962713721, 0.7337594982727194, 0.7388756067761119, 0.743896403599049, 0.7488203012215756, 0.7536456712219899, 0.7583708436700933, 0.7629941046715061, 0.7675136946491756, 0.7719278063759768, 0.7762345829073314, 0.7804321154072672, 0.7845184408608201, 0.7884915396651544, 0.7923493330911631, 0.7960896806066867, 0.7997103770517627, 0.803209149655536, ...])
    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([-5.16969842e-02, -1.08499276e-04, 5.1489....91816047e-01, -1.48630396e-01, -1.01648418e-01]), y = array([-0.03945515, -0.09144857, -0.14049242, -0...1, 0.11790529, 0.06669912, 0.01381102]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-5.16969842e-02, -1.08499276e-04, 5.1489....91816047e-01, -1.48630396e-01, -1.01648418e-01]), array([-0.03945515, -0.09144857, -0.14049242, -0...1, 0.11790529, 0.06669912, 0.01381102])], 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([-5.16969842e-02, -1.08499276e-04, 5.1489....91816047e-01, -1.48630396e-01, -1.01648418e-01]), array([-0.03945515, -0.09144857, -0.14049242, -0...1, 0.11790529, 0.06669912, 0.01381102])], 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([[-5.16969842e-02, -1.08499276e-04, 5.148...e-01, 6.66991187e-02, -3.94551458e-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. , 0.02059611, 0.04061399, 0.059...8758, 0.94074072, 0.95957698, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=269, 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([[-5.16969842e-02, -1.08499276e-04, 5.148...e-01, 6.66991187e-02, -3.94551458e-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. , 0.02059611, 0.04061399, 0.059...8758, 0.94074072, 0.95957698, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 269, 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>