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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:47:43

Orbital Elements for SYU10
WDS: SYU10 WDS ID/Discoverer
P: 700.000 Orbital period (years)
a: 0.53 Semi-major axis (arcseconds)
i: 109.0 Inclination (degrees)
Ω: 137.0 Longitude of ascending node (degrees)
T: 1770.000 Epoch of periastron passage (year)
e: 0.56 Eccentricity
ω: 284.0 Longitude of periastron (degrees)
Start-Year: 1675.0 Year
End-Year: 2375.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SYU10
Position: 093125.41-531436.6 Epoch-2000 right ascension and declination
WDS-ID: 09314-5315 WDS designation
Discoverer Code: SYU10 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.7 Magnitude of the primary
V2: 13.1 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2017 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for SYU10
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:47:43 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 = [0.29770903137084914, 0.29751890078324794, 0.29729611987734833, 0.29704010924331464, 0.296750276501454, 0.296426015977826, 0.296066708373932, 0.29567172043072765, 0.29524040458724626, 0.2947720986341853, 0.2942661253628708, 0.29372179221008765, 0.2931383908993453, 0.2925151970792465, 0.2918514699597111, 0.29114645194693917, 0.29039936827810986, 0.28960942665695094, 0.2887758168914774, 0.2878977105353507, ...], y_list = [0.36620903424715817, 0.36369079803435794, 0.36113265042989146, 0.3585341386718635, 0.35589480367312787, 0.3532141800149602, 0.35049179595066965, 0.3477271734201944, 0.3449198280768286, 0.3420692693273236, 0.33917500038671555, 0.336236518349348, 0.3332533142776852, 0.33022487331064376, 0.32715067479332505, 0.32403019243018283, 0.3208628944638344, 0.3176482438819162, 0.3143856986545663, 0.3110747120053537, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.29770903137084914, 0.29751890078324794, 0.29729611987734833, 0.29704010924331464, 0.296750276501454, 0.296426015977826, 0.296066708373932, 0.29567172043072765, 0.29524040458724626, 0.2947720986341853, 0.2942661253628708, 0.29372179221008765, 0.2931383908993453, 0.2925151970792465, 0.2918514699597111, 0.29114645194693917, 0.29039936827810986, 0.28960942665695094, 0.2887758168914774, 0.2878977105353507, ...], y_list=[0.36620903424715817, 0.36369079803435794, 0.36113265042989146, 0.3585341386718635, 0.35589480367312787, 0.3532141800149602, 0.35049179595066965, 0.3477271734201944, 0.3449198280768286, 0.3420692693273236, 0.33917500038671555, 0.336236518349348, 0.3332533142776852, 0.33022487331064376, 0.32715067479332505, 0.32403019243018283, 0.3208628944638344, 0.3176482438819162, 0.3143856986545663, 0.3110747120053537, ...])
    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([-2.98366724e-01, -2.99398073e-01, -3.0041...92e-01, -2.96272875e-01, -2.97324954e-01]), y = array([-7.59831769e-05, -2.35559679e-03, -4.6351...95e-03, 4.48317321e-03, 2.20363318e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-2.98366724e-01, -2.99398073e-01, -3.0041...92e-01, -2.96272875e-01, -2.97324954e-01]), array([-7.59831769e-05, -2.35559679e-03, -4.6351...95e-03, 4.48317321e-03, 2.20363318e-03])], 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([-2.98366724e-01, -2.99398073e-01, -3.0041...92e-01, -2.96272875e-01, -2.97324954e-01]), array([-7.59831769e-05, -2.35559679e-03, -4.6351...95e-03, 4.48317321e-03, 2.20363318e-03])], 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([[-2.98366724e-01, -2.99398073e-01, -3.004...76255895e-03, 4.48317321e-03, -7.59831769e-05]]), 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. , 0.00123183, 0.00246149, 0.003...5185, 0.99629194, 0.99753002, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=707, 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([[-2.98366724e-01, -2.99398073e-01, -3.004...76255895e-03, 4.48317321e-03, -7.59831769e-05]]), 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. , 0.00123183, 0.00246149, 0.003...5185, 0.99629194, 0.99753002, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 707, 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>