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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:46:18

Orbital Elements for I385AB
WDS: I385AB WDS ID/Discoverer
P: 2000.000 Orbital period (years)
a: 1.13 Semi-major axis (arcseconds)
i: 111.0 Inclination (degrees)
Ω: 243.6 Longitude of ascending node (degrees)
T: 1566.000 Epoch of periastron passage (year)
e: 0.12 Eccentricity
ω: 12.1 Longitude of periastron (degrees)
Start-Year: 1025.0 Year
End-Year: 3025.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I385AB
Position: 172445.86-591249.1 Epoch-2000 right ascension and declination
WDS-ID: 17248-5913 WDS designation
Discoverer Code: I385AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 157081 HD catalog number
Hipparcos number: 85216 Hipparcos catalog number
V1: 7.56 Magnitude of the primary
V2: 8.65 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for I385AB
--> -->
 
 
ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:46:18 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 = [0.028563388239213415, 0.03166785367544028, 0.03477203205828825, 0.03787589492300504, 0.04097941374836525, 0.044082559956725414, 0.04718530491407748, 0.05028761993009971, 0.05338947625821981, 0.05649084509566422, 0.059591697583527135, 0.06269200480682957, 0.0657917377945833, 0.06889086751985597, 0.07198936489983632, 0.07508720079591477, 0.07818434601374201, 0.08128077130331357, 0.08437644735903593, 0.08747134481981066, ...], y_list = [0.44593780133311955, 0.4444392375367641, 0.4429366451899018, 0.4414300337422738, 0.4399194126981186, 0.4384047916163082, 0.4368861801104839, 0.43536358784919604, 0.4338370245560366, 0.4323065000097811, 0.43077202404451925, 0.42923360654979403, 0.4276912574707364, 0.42614498680820245, 0.42459480461890864, 0.42304072101556256, 0.4214827461670044, 0.4199208902983352, 0.41835516369105735, 0.4167855766832038, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.028563388239213415, 0.03166785367544028, 0.03477203205828825, 0.03787589492300504, 0.04097941374836525, 0.044082559956725414, 0.04718530491407748, 0.05028761993009971, 0.05338947625821981, 0.05649084509566422, 0.059591697583527135, 0.06269200480682957, 0.0657917377945833, 0.06889086751985597, 0.07198936489983632, 0.07508720079591477, 0.07818434601374201, 0.08128077130331357, 0.08437644735903593, 0.08747134481981066, ...], y_list=[0.44593780133311955, 0.4444392375367641, 0.4429366451899018, 0.4414300337422738, 0.4399194126981186, 0.4384047916163082, 0.4368861801104839, 0.43536358784919604, 0.4338370245560366, 0.4323065000097811, 0.43077202404451925, 0.42923360654979403, 0.4276912574707364, 0.42614498680820245, 0.42459480461890864, 0.42304072101556256, 0.4214827461670044, 0.4199208902983352, 0.41835516369105735, 0.4167855766832038, ...])
    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([-0.76374349, -0.76132651, -0.75890275, ..., -0.77095363, -0.76855706, -0.76615368]), y = array([-0.00076198, -0.00262826, -0.00449452, ..., 0.00483684, 0.00297059, 0.00110431]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.76374349, -0.76132651, -0.75890275, ..., -0.77095363, -0.76855706, -0.76615368]), array([-0.00076198, -0.00262826, -0.00449452, ..., 0.00483684, 0.00297059, 0.00110431])], 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([-0.76374349, -0.76132651, -0.75890275, ..., -0.77095363, -0.76855706, -0.76615368]), array([-0.00076198, -0.00262826, -0.00449452, ..., 0.00483684, 0.00297059, 0.00110431])], 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([[-7.63743487e-01, -7.61326508e-01, -7.589...83684352e-03, 2.97059065e-03, -7.61977578e-04]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 6.00202248e-04, 1.2014562... 9.98205735e-01, 9.98802764e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=2007, 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([[-7.63743487e-01, -7.61326508e-01, -7.589...83684352e-03, 2.97059065e-03, -7.61977578e-04]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 6.00202248e-04, 1.2014562... 9.98205735e-01, 9.98802764e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 2007, 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>