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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:19:55

Orbital Elements for HO152
WDS: HO152 WDS ID/Discoverer
P: 202.000 Orbital period (years)
a: 0.377 Semi-major axis (arcseconds)
i: 70.3 Inclination (degrees)
Ω: 131.0 Longitude of ascending node (degrees)
T: 2014.660 Epoch of periastron passage (year)
e: 0.504 Eccentricity
ω: 44.0 Longitude of periastron (degrees)
Start-Year: 1924.0 Year
End-Year: 2126.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HO152
Position: 211231.11+282039.1 Epoch-2000 right ascension and declination
WDS-ID: 21125+2821 WDS designation
Discoverer Code: HO152 Discover designation and components
ADS number: 14748 Aitken Double Star catalog
HD number: 202015 HD catalog number
Hipparcos number: 104701 Hipparcos catalog number
V1: 8.87 Magnitude of the primary
V2: 9.39 Magnitude of the secondary
Equinox: Equinox
Date: 2016 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HO152
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:19:55 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 = [0.17001654336543312, 0.16481006098421508, 0.15955538668401006, 0.15425381573107505, 0.14890665146345916, 0.1435152068855388, 0.13808080631406586, 0.13260478708118584, 0.12708850130024074, 0.12153331770054715, 0.11594062353774671, 0.11031182658682141, 0.10464835722533841, 0.09895167061508874, 0.09322324899088315, 0.08746460406596342, 0.08167727956423809, 0.07586285389039152, 0.07002294294981656, 0.06415920313135214, ...], y_list = [0.3433008561107364, 0.3403581771721335, 0.33731597261398855, 0.33417462173482504, 0.33093449534933755, 0.3275959564127419, 0.3241593606677818, 0.32062505731736873, 0.3169933897260818, 0.3132646961540193, 0.3094393105267848, 0.3055175632457378, 0.30149978204298367, 0.2973862928860065, 0.2931774209372857, 0.28887349157475156, 0.28447483147948666, 0.2799817697977139, 0.275394639384797, 0.2707137781397628, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.17001654336543312, 0.16481006098421508, 0.15955538668401006, 0.15425381573107505, 0.14890665146345916, 0.1435152068855388, 0.13808080631406586, 0.13260478708118584, 0.12708850130024074, 0.12153331770054715, 0.11594062353774671, 0.11031182658682141, 0.10464835722533841, 0.09895167061508874, 0.09322324899088315, 0.08746460406596342, 0.08167727956423809, 0.07586285389039152, 0.07002294294981656, 0.06415920313135214, ...], y_list=[0.3433008561107364, 0.3403581771721335, 0.33731597261398855, 0.33417462173482504, 0.33093449534933755, 0.3275959564127419, 0.3241593606677818, 0.32062505731736873, 0.3169933897260818, 0.3132646961540193, 0.3094393105267848, 0.3055175632457378, 0.30149978204298367, 0.2973862928860065, 0.2931774209372857, 0.28887349157475156, 0.28447483147948666, 0.2799817697977139, 0.275394639384797, 0.2707137781397628, ...])
    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([-0.16796448, -0.1716224 , -0.17505831, -0... , -0.15581684, -0.16004705, -0.16410096]), y = array([-0.00107401, -0.00875901, -0.01643259, -0...5, 0.02195434, 0.0142912 , 0.00661239]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.16796448, -0.1716224 , -0.17505831, -0... , -0.15581684, -0.16004705, -0.16410096]), array([-0.00107401, -0.00875901, -0.01643259, -0...5, 0.02195434, 0.0142912 , 0.00661239])], 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([-0.16796448, -0.1716224 , -0.17505831, -0... , -0.15581684, -0.16004705, -0.16410096]), array([-0.00107401, -0.00875901, -0.01643259, -0...5, 0.02195434, 0.0142912 , 0.00661239])], 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([[-0.16796448, -0.1716224 , -0.17505831, -... 0.02195434, 0.0142912 , -0.00107401]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.0054093 , 0.01075286, 0.016...4984, 0.98345121, 0.98901435, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=209, 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([[-0.16796448, -0.1716224 , -0.17505831, -... 0.02195434, 0.0142912 , -0.00107401]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.0054093 , 0.01075286, 0.016...4984, 0.98345121, 0.98901435, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 209, 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>