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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:36:46

Orbital Elements for A2537
WDS: A2537 WDS ID/Discoverer
P: 428.000 Orbital period (years)
a: 0.338 Semi-major axis (arcseconds)
i: 113.8 Inclination (degrees)
Ω: 3.6 Longitude of ascending node (degrees)
T: 2083.000 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 1811.0 Year
End-Year: 2239.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2537
Position: 075531.40+242147.5 Epoch-2000 right ascension and declination
WDS-ID: 07555+2422 WDS designation
Discoverer Code: A2537 Discover designation and components
ADS number: 6459 Aitken Double Star catalog
HD number: 64583 HD catalog number
Hipparcos number: 38711 Hipparcos catalog number
V1: 9.16 Magnitude of the primary
V2: 9.51 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2004 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A2537
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:36:46 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 = [0.11638586621471522, 0.11529100356680567, 0.11417129472794459, 0.1130269810049015, 0.11185830900700745, 0.1106655305930088, 0.10944890281678928, 0.10820868787197303, 0.10694515303541934, 0.10565857060962235, 0.10434921786402741, 0.10301737697527759, 0.10166333496640159, 0.10028738364495828, 0.09888981954014951, 0.09747094383891573, 0.09603106232102737, 0.09457048529318687, 0.09308952752215503, 0.0915885081669158, ...], y_list = [-0.21582134748315507, -0.21960602698093826, -0.2233433795138096, -0.22703259965053998, -0.23067289233284094, -0.23426347304670608, -0.23780356799148086, -0.2412924142466226, -0.24472925993611694, -0.24811336439051332, -0.2514439983065456, -0.2547204439043026, -0.2579419950819167, -0.26110795756773386, -0.26421764906993594, -0.2672703994235795, -0.2702655507350226, -0.2732024575237066, -0.276080486861262, -0.2788990185079109, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.11638586621471522, 0.11529100356680567, 0.11417129472794459, 0.1130269810049015, 0.11185830900700745, 0.1106655305930088, 0.10944890281678928, 0.10820868787197303, 0.10694515303541934, 0.10565857060962235, 0.10434921786402741, 0.10301737697527759, 0.10166333496640159, 0.10028738364495828, 0.09888981954014951, 0.09747094383891573, 0.09603106232102737, 0.09457048529318687, 0.09308952752215503, 0.0915885081669158, ...], y_list=[-0.21582134748315507, -0.21960602698093826, -0.2233433795138096, -0.22703259965053998, -0.23067289233284094, -0.23426347304670608, -0.23780356799148086, -0.2412924142466226, -0.24472925993611694, -0.24811336439051332, -0.2514439983065456, -0.2547204439043026, -0.2579419950819167, -0.26110795756773386, -0.26421764906993594, -0.2672703994235795, -0.2702655507350226, -0.2732024575237066, -0.276080486861262, -0.2788990185079109, ...])
    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([-0.13642604, -0.13612916, -0.13580294, -0...13731903, -0.13714007, -0.13693155, -0.13669353]), y = array([-0.00361161, -0.00856452, -0.01351558, -0...01619713, 0.01124751, 0.00629547, 0.00134207]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.13642604, -0.13612916, -0.13580294, -0...13731903, -0.13714007, -0.13693155, -0.13669353]), array([-0.00361161, -0.00856452, -0.01351558, -0...01619713, 0.01124751, 0.00629547, 0.00134207])], 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([-0.13642604, -0.13612916, -0.13580294, -0...13731903, -0.13714007, -0.13693155, -0.13669353]), array([-0.00361161, -0.00856452, -0.01351558, -0...01619713, 0.01124751, 0.00629547, 0.00134207])], 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([[-0.13642604, -0.13612916, -0.13580294, -...1619713, 0.01124751, 0.00629547, -0.00361161]]), 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. , 0.00318383, 0.00636766, 0.009... 0.98727619, 0.99045428, 0.99363466, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=435, 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([[-0.13642604, -0.13612916, -0.13580294, -...1619713, 0.01124751, 0.00629547, -0.00361161]]), 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. , 0.00318383, 0.00636766, 0.009... 0.98727619, 0.99045428, 0.99363466, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 435, 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>