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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:24:29

Orbital Elements for A3025
WDS: A3025 WDS ID/Discoverer
P: 226.000 Orbital period (years)
a: 0.588 Semi-major axis (arcseconds)
i: 154.7 Inclination (degrees)
Ω: 94.9 Longitude of ascending node (degrees)
T: 2016.090 Epoch of periastron passage (year)
e: 0.85 Eccentricity
ω: 128.7 Longitude of periastron (degrees)
Start-Year: 1912.0 Year
End-Year: 2138.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A3025
Position: 061417.67-172848.0 Epoch-2000 right ascension and declination
WDS-ID: 06143-1729 WDS designation
Discoverer Code: A3025 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 43218 HD catalog number
Hipparcos number: 29601 Hipparcos catalog number
V1: 8.38 Magnitude of the primary
V2: 9.16 Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A3025
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:24:29 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 = [-0.6433211940932395, -0.6464394517092201, -0.6494775729231481, -0.6524349173529874, -0.6553108252440356, -0.6581046168557857, -0.6608155918206369, -0.6634430284728605, -0.6659861831460927, -0.6684442894375209, -0.6708165574368182, -0.6731021729177297, -0.6753002964900842, -0.6774100627098539, -0.6794305791446988, -0.6813609253922612, -0.6832001520482913, -0.6849472796214296, -0.6866012973912904, -0.688161162206187, ...], y_list = [-0.7982603507481507, -0.7950137339461528, -0.7916685630632733, -0.7882249313285856, -0.7846829143739242, -0.7810425702602954, -0.7773039394875224, -0.7734670449871011, -0.7695318920982276, -0.7654984685269115, -0.7613667442880506, -0.7571366716303145, -0.7528081849436395, -0.7483812006490902, -0.7438556170708257, -0.7392313142898488, -0.7345081539791722, -0.7296859792200212, -0.7247646142986084, -0.7197438644830013, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.6433211940932395, -0.6464394517092201, -0.6494775729231481, -0.6524349173529874, -0.6553108252440356, -0.6581046168557857, -0.6608155918206369, -0.6634430284728605, -0.6659861831460927, -0.6684442894375209, -0.6708165574368182, -0.6731021729177297, -0.6753002964900842, -0.6774100627098539, -0.6794305791446988, -0.6813609253922612, -0.6832001520482913, -0.6849472796214296, -0.6866012973912904, -0.688161162206187, ...], y_list=[-0.7982603507481507, -0.7950137339461528, -0.7916685630632733, -0.7882249313285856, -0.7846829143739242, -0.7810425702602954, -0.7773039394875224, -0.7734670449871011, -0.7695318920982276, -0.7654984685269115, -0.7613667442880506, -0.7571366716303145, -0.7528081849436395, -0.7483812006490902, -0.7438556170708257, -0.7392313142898488, -0.7345081539791722, -0.7296859792200212, -0.7247646142986084, -0.7197438644830013, ...])
    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([-0.31444557, -0.33534633, -0.35485514, -0...9, -0.24114257, -0.2676256 , -0.29195469]), y = array([-0.00604303, -0.02099224, -0.0358561 , -0... , 0.03857048, 0.02385132, 0.00893419]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.31444557, -0.33534633, -0.35485514, -0...9, -0.24114257, -0.2676256 , -0.29195469]), array([-0.00604303, -0.02099224, -0.0358561 , -0... , 0.03857048, 0.02385132, 0.00893419])], 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([-0.31444557, -0.33534633, -0.35485514, -0...9, -0.24114257, -0.2676256 , -0.29195469]), array([-0.00604303, -0.02099224, -0.0358561 , -0... , 0.03857048, 0.02385132, 0.00893419])], 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([[-0.31444557, -0.33534633, -0.35485514, -... 0.03857048, 0.02385132, -0.00604303]]), 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. , 0.00938712, 0.01834659, 0.026...128 , 0.96863922, 0.97970742, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=233, 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([[-0.31444557, -0.33534633, -0.35485514, -... 0.03857048, 0.02385132, -0.00604303]]), 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. , 0.00938712, 0.01834659, 0.026...128 , 0.96863922, 0.97970742, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 233, 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>