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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:28:56

Orbital Elements for A2385AB
WDS: A2385AB WDS ID/Discoverer
P: 8.000 Orbital period (years)
a: 0.1 Semi-major axis (arcseconds)
i: 122.6 Inclination (degrees)
Ω: 41.3 Longitude of ascending node (degrees)
T: 1939.970 Epoch of periastron passage (year)
e: 0.45 Eccentricity
ω: 71.4 Longitude of periastron (degrees)
Start-Year: 2021.0 Year
End-Year: 2029.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2385AB
Position: 150720.34+182631.0 Epoch-2000 right ascension and declination
WDS-ID: 15073+1827 WDS designation
Discoverer Code: A2385AB Discover designation and components
ADS number: 9505 Aitken Double Star catalog
HD number: 134064 HD catalog number
Hipparcos number: 74000 Hipparcos catalog number
V1: 6.8 Magnitude of the primary
V2: 6.8 Magnitude of the secondary
Equinox: Equinox
Date: 1945 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for A2385AB
--> -->
 
 
ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:28:56 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 = [0.06153307815912047, 0.04615397362389074, 0.01155236052863566, -0.026192873662842904, -0.058596175730123476, -0.0766792507236199, -0.06340010239723491, 0.01239026559299831, 0.06153307815912047], y_list = [-0.057319489590737585, -0.09864362386994788, -0.10277878649033179, -0.08273645184440818, -0.045862624538806185, 0.0014046287223321804, 0.04552669701658544, 0.029373452850105074, -0.057319489590737585]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.06153307815912047, 0.04615397362389074, 0.01155236052863566, -0.026192873662842904, -0.058596175730123476, -0.0766792507236199, -0.06340010239723491, 0.01239026559299831, 0.06153307815912047], y_list=[-0.057319489590737585, -0.09864362386994788, -0.10277878649033179, -0.08273645184440818, -0.045862624538806185, 0.0014046287223321804, 0.04552669701658544, 0.029373452850105074, -0.057319489590737585])
    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([-0.05859618, -0.02619287, 0.01155236, 0...06153308, 0.01239027, -0.0634001 , -0.07667925]), y = array([-0.04586262, -0.08273645, -0.10277879, -0...05731949, 0.02937345, 0.0455267 , 0.00140463]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.05859618, -0.02619287, 0.01155236, 0...06153308, 0.01239027, -0.0634001 , -0.07667925]), array([-0.04586262, -0.08273645, -0.10277879, -0...05731949, 0.02937345, 0.0455267 , 0.00140463])], 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([-0.05859618, -0.02619287, 0.01155236, 0...06153308, 0.01239027, -0.0634001 , -0.07667925]), array([-0.04586262, -0.08273645, -0.10277879, -0...05731949, 0.02937345, 0.0455267 , 0.00140463])], 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([[-0.05859618, -0.02619287, 0.01155236, ...5731949, 0.02937345, 0.0455267 , -0.04586262]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.11170975, 0.20896465, 0.288... 0.38861001, 0.61538928, 0.79173876, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=15, 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([[-0.05859618, -0.02619287, 0.01155236, ...5731949, 0.02937345, 0.0455267 , -0.04586262]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.11170975, 0.20896465, 0.288... 0.38861001, 0.61538928, 0.79173876, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 15, 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>