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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:11:30

Orbital Elements for HEI104
WDS: HEI104 WDS ID/Discoverer
P: 140.000 Orbital period (years)
a: 0.16 Semi-major axis (arcseconds)
i: 84.6 Inclination (degrees)
Ω: 182.4 Longitude of ascending node (degrees)
T: 2034.124 Epoch of periastron passage (year)
e: 0.42 Eccentricity
ω: 139.9 Longitude of periastron (degrees)
Start-Year: 1955.0 Year
End-Year: 2095.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI104
Position: 050449.09+131831.9 Epoch-2000 right ascension and declination
WDS-ID: 05048+1319 WDS designation
Discoverer Code: HEI104 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.08 Magnitude of the primary
V2: 7.97 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 HEI104
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:11:30 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 = [-0.010392791820233793, -0.009990384494812654, -0.009580738991329475, -0.009164199374477705, -0.008741104313580442, -0.008311787782794, -0.007876579658877165, -0.00743580641503417, -0.006989791735224668, -0.0065388571432429595, -0.0060833226277344134, -0.005623507266239051, -0.005159729851432987, -0.004692309522817531, -0.004221566407181611, -0.0037478222527006946, -0.0032714011342935955, -0.002792630090390694, -0.002311839850061788, -0.0018293655556105362, ...], y_list = [-0.142549777026514, -0.14647072980980663, -0.1502855710734828, -0.153992277591886, -0.1575888356609797, -0.1610732358534601, -0.1644434687194066, -0.1676975197685222, -0.17083336520563316, -0.17384896762132926, -0.1767422718014079, -0.17951120063087425, -0.1821536510703298, -0.18466749018468298, -0.18705055120623348, -0.189300629701448, -0.19141547946980253, -0.1933928088536429, -0.195230276689492, -0.1969254883701373, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.010392791820233793, -0.009990384494812654, -0.009580738991329475, -0.009164199374477705, -0.008741104313580442, -0.008311787782794, -0.007876579658877165, -0.00743580641503417, -0.006989791735224668, -0.0065388571432429595, -0.0060833226277344134, -0.005623507266239051, -0.005159729851432987, -0.004692309522817531, -0.004221566407181611, -0.0037478222527006946, -0.0032714011342935955, -0.002792630090390694, -0.002311839850061788, -0.0018293655556105362, ...], y_list=[-0.142549777026514, -0.14647072980980663, -0.1502855710734828, -0.153992277591886, -0.1575888356609797, -0.1610732358534601, -0.1644434687194066, -0.1676975197685222, -0.17083336520563316, -0.17384896762132926, -0.1767422718014079, -0.17951120063087425, -0.1821536510703298, -0.18466749018468298, -0.18705055120623348, -0.189300629701448, -0.19141547946980253, -0.1933928088536429, -0.195230276689492, -0.1969254883701373, ...])
    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([-0.01697527, -0.01694203, -0.01688677, -0...3, -0.01693319, -0.01697187, -0.01698555]), y = array([-0.00546647, -0.01123493, -0.01698884, -0...9, 0.01185094, 0.00608465, 0.00030934]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.01697527, -0.01694203, -0.01688677, -0...3, -0.01693319, -0.01697187, -0.01698555]), array([-0.00546647, -0.01123493, -0.01698884, -0...9, 0.01185094, 0.00608465, 0.00030934])], 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([-0.01697527, -0.01694203, -0.01688677, -0...3, -0.01693319, -0.01697187, -0.01698555]), array([-0.00546647, -0.01123493, -0.01698884, -0...9, 0.01185094, 0.00608465, 0.00030934])], 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([[-1.69752700e-02, -1.69420305e-02, -1.688...18509371e-02, 6.08465023e-03, -5.46646661e-03]]), 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. , 0.00923467, 0.01844632, 0.027...7473, 0.972277 , 0.98150825, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=147, 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([[-1.69752700e-02, -1.69420305e-02, -1.688...18509371e-02, 6.08465023e-03, -5.46646661e-03]]), 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. , 0.00923467, 0.01844632, 0.027...7473, 0.972277 , 0.98150825, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 147, 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>