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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:15:28

Orbital Elements for HU1393
WDS: HU1393 WDS ID/Discoverer
P: 130.000 Orbital period (years)
a: 0.659 Semi-major axis (arcseconds)
i: 113.5 Inclination (degrees)
Ω: 205.9 Longitude of ascending node (degrees)
T: 2019.040 Epoch of periastron passage (year)
e: 0.985 Eccentricity
ω: 73.7 Longitude of periastron (degrees)
Start-Year: 1960.0 Year
End-Year: 2090.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1393
Position: 053526.75-331609.2 Epoch-2000 right ascension and declination
WDS-ID: 05354-3316 WDS designation
Discoverer Code: HU1393 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 26245 Hipparcos catalog number
V1: 6.99 Magnitude of the primary
V2: 8.68 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HU1393
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:15:28 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 = [0.2970120914991766, 0.2978807578544377, 0.2986585171208306, 0.2993445213432375, 0.2999378579924792, 0.30043754719777305, 0.30084253869325706, 0.30115170845336764, 0.3013638549884342, 0.301477695267962, 0.3014918602346316, 0.3014048898669344, 0.3012152277425192, 0.300921215047507, 0.30052108396920757, 0.30001295040050047, 0.2993948058734801, 0.2986645086274325, 0.2978197737014996, 0.2968581619249778, ...], y_list = [0.5326154064984286, 0.5293108938615965, 0.5258448479451713, 0.5222172516740896, 0.5184279955068957, 0.5144768765465108, 0.5103635973428817, 0.5060877643759218, 0.5016488862044122, 0.4970463712635536, 0.49227952529058006, 0.48734754835424837, 0.48224953145994537, 0.4769844526977036, 0.47155117289524834, 0.46594843073244113, 0.4601748372668356, 0.45422886981247756, 0.44810886510526415, 0.4418130116780191, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.2970120914991766, 0.2978807578544377, 0.2986585171208306, 0.2993445213432375, 0.2999378579924792, 0.30043754719777305, 0.30084253869325706, 0.30115170845336764, 0.3013638549884342, 0.301477695267962, 0.3014918602346316, 0.3014048898669344, 0.3012152277425192, 0.300921215047507, 0.30052108396920757, 0.30001295040050047, 0.2993948058734801, 0.2986645086274325, 0.2978197737014996, 0.2968581619249778, ...], y_list=[0.5326154064984286, 0.5293108938615965, 0.5258448479451713, 0.5222172516740896, 0.5184279955068957, 0.5144768765465108, 0.5103635973428817, 0.5060877643759218, 0.5016488862044122, 0.4970463712635536, 0.49227952529058006, 0.48734754835424837, 0.48224953145994537, 0.4769844526977036, 0.47155117289524834, 0.46594843073244113, 0.4601748372668356, 0.45422886981247756, 0.44810886510526415, 0.4418130116780191, ...])
    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([ 5.41244186e-03, 6.10598109e-02, 8.6908....69624174e-03, -2.55624502e-05, -9.58920173e-03]), y = array([-0.01283289, -0.00537832, 0.01549459, 0...4, 0.18310007, 0.14727736, 0.09960359]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([ 5.41244186e-03, 6.10598109e-02, 8.6908....69624174e-03, -2.55624502e-05, -9.58920173e-03]), array([-0.01283289, -0.00537832, 0.01549459, 0...4, 0.18310007, 0.14727736, 0.09960359])], 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([ 5.41244186e-03, 6.10598109e-02, 8.6908....69624174e-03, -2.55624502e-05, -9.58920173e-03]), array([-0.01283289, -0.00537832, 0.01549459, 0...4, 0.18310007, 0.14727736, 0.09960359])], 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([[ 5.41244186e-03, 6.10598109e-02, 8.690...e-01, 1.47277357e-01, -1.28328941e-02]]), 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. , 0.04063989, 0.06468905, 0.084...3295, 0.85717014, 0.88403815, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=137, 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([[ 5.41244186e-03, 6.10598109e-02, 8.690...e-01, 1.47277357e-01, -1.28328941e-02]]), 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. , 0.04063989, 0.06468905, 0.084...3295, 0.85717014, 0.88403815, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 137, 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>