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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:33:34

Orbital Elements for HDS3179
WDS: HDS3179 WDS ID/Discoverer
P: 200.000 Orbital period (years)
a: 0.523 Semi-major axis (arcseconds)
i: 58.8 Inclination (degrees)
Ω: 40.7 Longitude of ascending node (degrees)
T: 2000.980 Epoch of periastron passage (year)
e: 0.882 Eccentricity
ω: 344.0 Longitude of periastron (degrees)
Start-Year: 1925.0 Year
End-Year: 2125.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3179
Position: 222531.22-153555.9 Epoch-2000 right ascension and declination
WDS-ID: 22255-1536 WDS designation
Discoverer Code: HDS3179 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 212560 HD catalog number
Hipparcos number: 110689 Hipparcos catalog number
V1: 8.48 Magnitude of the primary
V2: 10.99 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS3179
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:33:34 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 = [0.5426335409170144, 0.5429182993127737, 0.5431117954221515, 0.5432130110392142, 0.5432208870110069, 0.5431343214659364, 0.542952167926595, 0.5426732332981654, 0.5422962757227171, 0.5418200022887686, 0.5412430665844625, 0.540564066081553, 0.5397815393360991, 0.5388939629903656, 0.5378997485587844, 0.5367972389790727, 0.5355847048643618, 0.5342603406699206, 0.5328222602026755, 0.5312684921211881, ...], y_list = [-0.762722837006312, -0.7592573066138032, -0.7556641493926579, -0.7519425979662233, -0.7480918424068683, -0.7441110288872853, -0.7399992582365122, -0.7357555843944235, -0.7313790127578357, -0.7268684984107439, -0.7222229442304883, -0.7174411988608734, -0.712522054542397, -0.7074642447887806, -0.7022664418979442, -0.6969272542843643, -0.6914452234292717, -0.6858188214864653, -0.680046447065055, -0.6741264222520721, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.5426335409170144, 0.5429182993127737, 0.5431117954221515, 0.5432130110392142, 0.5432208870110069, 0.5431343214659364, 0.542952167926595, 0.5426732332981654, 0.5422962757227171, 0.5418200022887686, 0.5412430665844625, 0.540564066081553, 0.5397815393360991, 0.5388939629903656, 0.5378997485587844, 0.5367972389790727, 0.5355847048643618, 0.5342603406699206, 0.5328222602026755, 0.5312684921211881, ...], y_list=[-0.762722837006312, -0.7592573066138032, -0.7556641493926579, -0.7519425979662233, -0.7480918424068683, -0.7441110288872853, -0.7399992582365122, -0.7357555843944235, -0.7313790127578357, -0.7268684984107439, -0.7222229442304883, -0.7174411988608734, -0.712522054542397, -0.7074642447887806, -0.7022664418979442, -0.6969272542843643, -0.6914452234292717, -0.6858188214864653, -0.680046447065055, -0.6741264222520721, ...])
    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([-0.06463114, -0.06313954, -0.05785797, -0...2, 0.00902622, -0.03273141, -0.05766694]), y = array([-0.00148081, -0.03345689, -0.06365059, -0...5, 0.04495146, 0.05056333, 0.03006586]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.06463114, -0.06313954, -0.05785797, -0...2, 0.00902622, -0.03273141, -0.05766694]), array([-0.00148081, -0.03345689, -0.06365059, -0...5, 0.04495146, 0.05056333, 0.03006586])], 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([-0.06463114, -0.06313954, -0.05785797, -0...2, 0.00902622, -0.03273141, -0.05766694]), array([-0.00148081, -0.03345689, -0.06365059, -0...5, 0.04495146, 0.05056333, 0.03006586])], 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([[-0.06463114, -0.06313954, -0.05785797, -... 0.04495146, 0.05056333, -0.00148081]]), 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. , 0.01461147, 0.02860276, 0.041...901 , 0.95290515, 0.97213693, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=207, 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([[-0.06463114, -0.06313954, -0.05785797, -... 0.04495146, 0.05056333, -0.00148081]]), 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. , 0.01461147, 0.02860276, 0.041...901 , 0.95290515, 0.97213693, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 207, 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>