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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:37:01

Orbital Elements for YSC152EA,EB
WDS: YSC152EA,EB WDS ID/Discoverer
P: 52.000 Orbital period (years)
a: 0.111 Semi-major axis (arcseconds)
i: 59.0 Inclination (degrees)
Ω: 30.0 Longitude of ascending node (degrees)
T: 1963.000 Epoch of periastron passage (year)
e: 0.36 Eccentricity
ω: 127.0 Longitude of periastron (degrees)
Start-Year: 1999.0 Year
End-Year: 2051.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for YSC152EA,EB
Position: 161356.27+334624.3 Epoch-2000 right ascension and declination
WDS-ID: 16147+3352 WDS designation
Discoverer Code: YSC152EA,EB Discover designation and components
ADS number: 9979 Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 79607 Hipparcos catalog number
V1: 12.1 Magnitude of the primary
V2: . Magnitude of the secondary
Equinox: 2000 Equinox
Date: Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for YSC152EA,EB
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:37:01 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 = [-0.049158897441915254, -0.053582868366411324, -0.05753927927600469, -0.06094985259259381, -0.06372579206482352, -0.0657660068862136, -0.06695534222477972, -0.06716314065291974, -0.0662427988579139, -0.06403358456249784, -0.060366963680905064, -0.055081081189694625, -0.04804839497336442, -0.03922103293694553, -0.028692310685508874, -0.016756717043999444, -0.003929415780585109, 0.009114648745742544, 0.021676815997453205, 0.033179220612449975, ...], y_list = [0.12209114210860997, 0.1185469788048851, 0.11396991610717885, 0.10831343020703914, 0.10153114139435852, 0.0935790047607967, 0.08441894813479324, 0.07402476014594561, 0.062391414843631664, 0.04954948688129109, 0.035586683184566786, 0.02067823459528735, 0.0051256211973367315, -0.010603489986410308, -0.025853993851621165, -0.03981506049877515, -0.05163549122185415, -0.06060748895021401, -0.06633490511190736, -0.06879048730329415, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.049158897441915254, -0.053582868366411324, -0.05753927927600469, -0.06094985259259381, -0.06372579206482352, -0.0657660068862136, -0.06695534222477972, -0.06716314065291974, -0.0662427988579139, -0.06403358456249784, -0.060366963680905064, -0.055081081189694625, -0.04804839497336442, -0.03922103293694553, -0.028692310685508874, -0.016756717043999444, -0.003929415780585109, 0.009114648745742544, 0.021676815997453205, 0.033179220612449975, ...], y_list=[0.12209114210860997, 0.1185469788048851, 0.11396991610717885, 0.10831343020703914, 0.10153114139435852, 0.0935790047607967, 0.08441894813479324, 0.07402476014594561, 0.062391414843631664, 0.04954948688129109, 0.035586683184566786, 0.02067823459528735, 0.0051256211973367315, -0.010603489986410308, -0.025853993851621165, -0.03981506049877515, -0.05163549122185415, -0.06060748895021401, -0.06633490511190736, -0.06879048730329415, ...])
    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([-0.03922103, -0.02869231, -0.01675672, -0...8, -0.06036696, -0.05508108, -0.04804839]), y = array([-0.01060349, -0.02585399, -0.03981506, -0...9, 0.03558668, 0.02067823, 0.00512562]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.03922103, -0.02869231, -0.01675672, -0...8, -0.06036696, -0.05508108, -0.04804839]), array([-0.01060349, -0.02585399, -0.03981506, -0...9, 0.03558668, 0.02067823, 0.00512562])], 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([-0.03922103, -0.02869231, -0.01675672, -0...8, -0.06036696, -0.05508108, -0.04804839]), array([-0.01060349, -0.02585399, -0.03981506, -0...9, 0.03558668, 0.02067823, 0.00512562])], 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([[-0.03922103, -0.02869231, -0.01675672, -... 0.03558668, 0.02067823, -0.01060349]]), 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. , 0.03555452, 0.07079386, 0.104...6724, 0.90236391, 0.93271123, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=59, 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([[-0.03922103, -0.02869231, -0.01675672, -... 0.03558668, 0.02067823, -0.01060349]]), 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. , 0.03555452, 0.07079386, 0.104...6724, 0.90236391, 0.93271123, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 59, 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>