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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:12:18

Orbital Elements for RST4503
WDS: RST4503 WDS ID/Discoverer
P: 300.000 Orbital period (years)
a: 0.21 Semi-major axis (arcseconds)
i: 53.0 Inclination (degrees)
Ω: 120.9 Longitude of ascending node (degrees)
T: 1729.080 Epoch of periastron passage (year)
e: 0.317 Eccentricity
ω: 25.0 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 RST4503
Position: 123550.18-615027.3 Epoch-2000 right ascension and declination
WDS-ID: 12358-6150 WDS designation
Discoverer Code: RST4503 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 109517 HD catalog number
Hipparcos number: 61479 Hipparcos catalog number
V1: 9.20 Magnitude of the primary
V2: 9.93 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2020 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST4503
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:12:18 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 = [0.18697225207509408, 0.18506203428647222, 0.18311624897978382, 0.18113528671204202, 0.17911953807640774, 0.17706939385652964, 0.17498524512558153, 0.1728674834250641, 0.1707165008884997, 0.16853269039110924, 0.1663164456985925, 0.16406816161898688, 0.16178823415773358, 0.1594770606760818, 0.15713504005297338, 0.15476257285055386, 0.15236006148346126, 0.14992791039205425, 0.14746652621974493, 0.14497631782911005, ...], y_list = [0.18553736493805803, 0.18646130870039004, 0.1873494160660919, 0.1882015333067434, 0.18901750715663865, 0.18979718474642682, 0.19054041356229445, 0.191247041377677, 0.1919169162104339, 0.19254988627367725, 0.19314579993082745, 0.1937045056533673, 0.19422585198128905, 0.19470968748623382, 0.19515586073733168, 0.1955642202697569, 0.19593461455602185, 0.19626689198003897, 0.19656090081398847, 0.1968164892136548, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.18697225207509408, 0.18506203428647222, 0.18311624897978382, 0.18113528671204202, 0.17911953807640774, 0.17706939385652964, 0.17498524512558153, 0.1728674834250641, 0.1707165008884997, 0.16853269039110924, 0.1663164456985925, 0.16406816161898688, 0.16178823415773358, 0.1594770606760818, 0.15713504005297338, 0.15476257285055386, 0.15236006148346126, 0.14992791039205425, 0.14746652621974493, 0.14497631782911005, ...], y_list=[0.18553736493805803, 0.18646130870039004, 0.1873494160660919, 0.1882015333067434, 0.18901750715663865, 0.18979718474642682, 0.19054041356229445, 0.191247041377677, 0.1919169162104339, 0.19254988627367725, 0.19314579993082745, 0.1937045056533673, 0.19422585198128905, 0.19470968748623382, 0.19515586073733168, 0.1955642202697569, 0.19593461455602185, 0.19626689198003897, 0.19656090081398847, 0.1968164892136548, ...])
    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([-0.14093606, -0.14169203, -0.14232785, -0...9, -0.13798219, -0.13907763, -0.14006342]), y = array([-0.00096419, -0.00470944, -0.00845068, -0... , 0.01026439, 0.0065257 , 0.00278188]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.14093606, -0.14169203, -0.14232785, -0...9, -0.13798219, -0.13907763, -0.14006342]), array([-0.00096419, -0.00470944, -0.00845068, -0... , 0.01026439, 0.0065257 , 0.00278188])], 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([-0.14093606, -0.14169203, -0.14232785, -0...9, -0.13798219, -0.13907763, -0.14006342]), array([-0.00096419, -0.00470944, -0.00845068, -0... , 0.01026439, 0.0065257 , 0.00278188])], 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([[-0.14093606, -0.14169203, -0.14232785, -... 0.01026439, 0.0065257 , -0.00096419]]), 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. , 0.00363147, 0.00723833, 0.010...3718, 0.98896252, 0.99266536, 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([[-0.14093606, -0.14169203, -0.14232785, -... 0.01026439, 0.0065257 , -0.00096419]]), 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. , 0.00363147, 0.00723833, 0.010...3718, 0.98896252, 0.99266536, 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>