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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:10:37

Orbital Elements for BU605CD
WDS: BU605CD WDS ID/Discoverer
P: 1100.000 Orbital period (years)
a: 1.411 Semi-major axis (arcseconds)
i: 64.1 Inclination (degrees)
Ω: 122.0 Longitude of ascending node (degrees)
T: 2044.900 Epoch of periastron passage (year)
e: 0.516 Eccentricity
ω: 153.6 Longitude of periastron (degrees)
Start-Year: 1475.0 Year
End-Year: 2575.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for BU605CD
Position: 122010.83-221032.3 Epoch-2000 right ascension and declination
WDS-ID: 12206-2213 WDS designation
Discoverer Code: BU605CD Discover designation and components
ADS number: 8515 Aitken Double Star catalog
HD number: 107295 HD catalog number
Hipparcos number: 60157 Hipparcos catalog number
V1: 6.29 Magnitude of the primary
V2: 8.05 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for BU605CD
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ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:10:37 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 = [-1.8262144884618465, -1.8273214060720608, -1.8284111676463897, -1.8294837675365547, -1.8305392000099303, -1.8315774592492986, -1.83259853935262, -1.8336024343327886, -1.834589138117402, -1.8355586445485172, -1.8365109473824157, -1.8374460402893629, -1.8383639168533688, -1.8392645705719486, -1.8401479948558839, -1.8410141830289777, -1.8418631283278137, -1.8426948239015182, -1.843509262811509, -1.8443064380312582, ...], y_list = [-0.6103857505227765, -0.613085665455142, -0.6157798243573762, -0.6184682034783865, -0.6211507790500406, -0.623827527286329, -0.6264984243825358, -0.6291634465144011, -0.631822569837298, -0.6344757704853953, -0.6371230245708313, -0.6397643081828859, -0.6423995973871516, -0.6450288682247068, -0.6476520967112956, -0.6502692588364893, -0.6528803305628719, -0.6554852878252125, -0.6580841065296356, -0.6606767625527967, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-1.8262144884618465, -1.8273214060720608, -1.8284111676463897, -1.8294837675365547, -1.8305392000099303, -1.8315774592492986, -1.83259853935262, -1.8336024343327886, -1.834589138117402, -1.8355586445485172, -1.8365109473824157, -1.8374460402893629, -1.8383639168533688, -1.8392645705719486, -1.8401479948558839, -1.8410141830289777, -1.8418631283278137, -1.8426948239015182, -1.843509262811509, -1.8443064380312582, ...], y_list=[-0.6103857505227765, -0.613085665455142, -0.6157798243573762, -0.6184682034783865, -0.6211507790500406, -0.623827527286329, -0.6264984243825358, -0.6291634465144011, -0.631822569837298, -0.6344757704853953, -0.6371230245708313, -0.6397643081828859, -0.6423995973871516, -0.6450288682247068, -0.6476520967112956, -0.6502692588364893, -0.6528803305628719, -0.6554852878252125, -0.6580841065296356, -0.6606767625527967, ...])
    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([-1.28054285, -1.28499356, -1.28942698, ..., -1.26708695, -1.27158955, -1.27607485]), y = array([-0.00165722, -0.00498577, -0.00831425, ..., 0.00832838, 0.0049999 , 0.00167135]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.28054285, -1.28499356, -1.28942698, ..., -1.26708695, -1.27158955, -1.27607485]), array([-0.00165722, -0.00498577, -0.00831425, ..., 0.00832838, 0.0049999 , 0.00167135])], 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([-1.28054285, -1.28499356, -1.28942698, ..., -1.26708695, -1.27158955, -1.27607485]), array([-0.00165722, -0.00498577, -0.00831425, ..., 0.00832838, 0.0049999 , 0.00167135])], 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([[-1.28054285, -1.28499356, -1.28942698, .... 0.00832838, 0.0049999 , -0.00165722]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 8.80702966e-04, 1.7592069... 9.97344706e-01, 9.98232001e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=1107, 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([[-1.28054285, -1.28499356, -1.28942698, .... 0.00832838, 0.0049999 , -0.00165722]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 8.80702966e-04, 1.7592069... 9.97344706e-01, 9.98232001e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 1107, 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>