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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:43:34

Orbital Elements for A1494
WDS: A1494 WDS ID/Discoverer
P: 190.000 Orbital period (years)
a: 0.24 Semi-major axis (arcseconds)
i: 116.9 Inclination (degrees)
Ω: 15.6 Longitude of ascending node (degrees)
T: 2003.700 Epoch of periastron passage (year)
e: 0.45 Eccentricity
ω: 1.7 Longitude of periastron (degrees)
Start-Year: 1930.0 Year
End-Year: 2120.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A1494
Position: 234224.43+390329.4 Epoch-2000 right ascension and declination
WDS-ID: 23424+3903 WDS designation
Discoverer Code: A1494 Discover designation and components
ADS number: 16939 Aitken Double Star catalog
HD number: 222648 HD catalog number
Hipparcos number: 116952 Hipparcos catalog number
V1: 9.30 Magnitude of the primary
V2: 10.78 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A1494
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:43:34 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 = [0.036868216823856624, 0.03419019194236486, 0.031498291606280475, 0.028793458737329868, 0.02607665881177524, 0.023348881692069855, 0.020611143565535235, 0.017864488999289975, 0.01510999312144709, 0.012348763939460052, 0.009581944807449061, 0.0068107170553816715, 0.004036302794128506, 0.0012599679116749665, -0.0015169747228482562, -0.004293161829132799, -0.0070671760398102225, -0.009837541957044043, -0.012602722022255016, -0.015361111585980271, ...], y_list = [-0.3182137114789206, -0.3159725607697114, -0.31360316115133213, -0.3111049827428439, -0.30847748058589824, -0.3057200950572568, -0.3028322523565228, -0.2998133650787042, -0.2966628328824638, -0.2933800432663035, -0.2899643724665102, -0.2864151864924719, -0.2827318423170052, -0.2789136892416264, -0.27496007045931903, -0.27087032484031537, -0.2666437889697952, -0.26227979947025526, -0.25777769547301305, -0.2531368222448525, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.036868216823856624, 0.03419019194236486, 0.031498291606280475, 0.028793458737329868, 0.02607665881177524, 0.023348881692069855, 0.020611143565535235, 0.017864488999289975, 0.01510999312144709, 0.012348763939460052, 0.009581944807449061, 0.0068107170553816715, 0.004036302794128506, 0.0012599679116749665, -0.0015169747228482562, -0.004293161829132799, -0.0070671760398102225, -0.009837541957044043, -0.012602722022255016, -0.015361111585980271, ...], y_list=[-0.3182137114789206, -0.3159725607697114, -0.31360316115133213, -0.3111049827428439, -0.30847748058589824, -0.3057200950572568, -0.3028322523565228, -0.2998133650787042, -0.2966628328824638, -0.2933800432663035, -0.2899643724665102, -0.2864151864924719, -0.2827318423170052, -0.2789136892416264, -0.27496007045931903, -0.27087032484031537, -0.2666437889697952, -0.26227979947025526, -0.25777769547301305, -0.2531368222448525, ...])
    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([-0.08544023, -0.0851366 , -0.08464307, -0...6, -0.08507595, -0.08542413, -0.08554072]), y = array([-0.00403598, -0.01302575, -0.02198668, -0...8, 0.02289765, 0.01394945, 0.00496316]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.08544023, -0.0851366 , -0.08464307, -0...6, -0.08507595, -0.08542413, -0.08554072]), array([-0.00403598, -0.01302575, -0.02198668, -0...8, 0.02289765, 0.01394945, 0.00496316])], 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([-0.08544023, -0.0851366 , -0.08464307, -0...6, -0.08507595, -0.08542413, -0.08554072]), array([-0.00403598, -0.01302575, -0.02198668, -0...8, 0.02289765, 0.01394945, 0.00496316])], 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([[-0.08544023, -0.0851366 , -0.08464307, -... 0.02289765, 0.01394945, -0.00403598]]), 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. , 0.0081275 , 0.01623659, 0.024...1445, 0.9756575 , 0.98374893, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=197, 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([[-0.08544023, -0.0851366 , -0.08464307, -... 0.02289765, 0.01394945, -0.00403598]]), 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. , 0.0081275 , 0.01623659, 0.024...1445, 0.9756575 , 0.98374893, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 197, 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>