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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:36:00

Orbital Elements for A2099
WDS: A2099 WDS ID/Discoverer
P: 256.000 Orbital period (years)
a: 0.604 Semi-major axis (arcseconds)
i: 76.9 Inclination (degrees)
Ω: 348.3 Longitude of ascending node (degrees)
T: 1917.900 Epoch of periastron passage (year)
e: 0.454 Eccentricity
ω: 2.0 Longitude of periastron (degrees)
Start-Year: 1897.0 Year
End-Year: 2153.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for A2099
Position: 224000.54+011233.6 Epoch-2000 right ascension and declination
WDS-ID: 22400+0113 WDS designation
Discoverer Code: A2099 Discover designation and components
ADS number: 16157 Aitken Double Star catalog
HD number: 214699 HD catalog number
Hipparcos number: 111900 Hipparcos catalog number
V1: 8.54 Magnitude of the primary
V2: 9.38 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for A2099
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:36:00 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 = [0.11674720176678582, 0.1169281705144999, 0.11689512349211019, 0.1166368680875492, 0.11614210920158917, 0.11539956331608568, 0.11439809779833204, 0.11312689701637325, 0.11157565661063212, 0.10973480567801171, 0.10759575506891672, 0.10515116784515377, 0.10239524539883564, 0.09932401990429468, 0.09593564089770576, 0.0922306411868561, 0.08821216540431846, 0.08388614378432989, 0.07926139467396771, 0.07434964118160567, ...], y_list = [0.11460411051606936, 0.13026546330807862, 0.1456881469224486, 0.1608298953604282, 0.17564526263008223, 0.19008561405952623, 0.2040991808156123, 0.21763120341892475, 0.23062417415392925, 0.24301819933512575, 0.25475149686668397, 0.2657610419050013, 0.275983367903899, 0.28535552229154487, 0.29381616551026146, 0.301306789548891, 0.30777301830217574, 0.3131659385023211, 0.3174433983277503, 0.3205712038645156, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.11674720176678582, 0.1169281705144999, 0.11689512349211019, 0.1166368680875492, 0.11614210920158917, 0.11539956331608568, 0.11439809779833204, 0.11312689701637325, 0.11157565661063212, 0.10973480567801171, 0.10759575506891672, 0.10515116784515377, 0.10239524539883564, 0.09932401990429468, 0.09593564089770576, 0.0922306411868561, 0.08821216540431846, 0.08388614378432989, 0.07926139467396771, 0.07434964118160567, ...], y_list=[0.11460411051606936, 0.13026546330807862, 0.1456881469224486, 0.1608298953604282, 0.17564526263008223, 0.19008561405952623, 0.2040991808156123, 0.21763120341892475, 0.23062417415392925, 0.24301819933512575, 0.25475149686668397, 0.2657610419050013, 0.275983367903899, 0.28535552229154487, 0.29381616551026146, 0.301306789548891, 0.30777301830217574, 0.3131659385023211, 0.3174433983277503, 0.3205712038645156, ...])
    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([-0.11359822, -0.11840112, -0.12307284, -0...5, -0.09839763, -0.10359664, -0.10866351]), y = array([-0.00704341, -0.02325584, -0.03944265, -0...2, 0.04156279, 0.0253862 , 0.00917706]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.11359822, -0.11840112, -0.12307284, -0...5, -0.09839763, -0.10359664, -0.10866351]), array([-0.00704341, -0.02325584, -0.03944265, -0...2, 0.04156279, 0.0253862 , 0.00917706])], 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([-0.11359822, -0.11840112, -0.12307284, -0...5, -0.09839763, -0.10359664, -0.10866351]), array([-0.00704341, -0.02325584, -0.03944265, -0...2, 0.04156279, 0.0253862 , 0.00917706])], 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([[-1.13598219e-01, -1.18401118e-01, -1.230...e-02, 2.53862038e-02, -7.04340738e-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. , 0.00665819, 0.0132922 , 0.019...601 , 0.979946 , 0.98663673, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=263, 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([[-1.13598219e-01, -1.18401118e-01, -1.230...e-02, 2.53862038e-02, -7.04340738e-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. , 0.00665819, 0.0132922 , 0.019...601 , 0.979946 , 0.98663673, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 263, 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>