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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:57:13

Orbital Elements for I1198
WDS: I1198 WDS ID/Discoverer
P: 1600.000 Orbital period (years)
a: 1.4 Semi-major axis (arcseconds)
i: 82.0 Inclination (degrees)
Ω: 123.14 Longitude of ascending node (degrees)
T: 1920.000 Epoch of periastron passage (year)
e: 0.25 Eccentricity
ω: 160.0 Longitude of periastron (degrees)
Start-Year: 1225.0 Year
End-Year: 2825.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1198
Position: 101739.50-345153.4 Epoch-2000 right ascension and declination
WDS-ID: 10177-3452 WDS designation
Discoverer Code: I1198 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.56 Magnitude of the primary
V2: 13.13 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for I1198
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ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:57:13 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 = [-1.455395484361962, -1.4550895962121784, -1.4547718290398945, -1.4544421778915775, -1.4541006378373758, -1.4537472039712278, -1.4533818714109736, -1.4530046352984691, -1.4526154907996986, -1.452214433104896, -1.4518014574286608, -1.451376559010082, -1.4509397331128613, -1.4504909750254376, -1.4500302800611173, -1.4495576435582023, -1.4490730608801232, -1.4485765274155735, -1.448068038578647, -1.4475475898089747, ...], y_list = [-0.9238682746001127, -0.9243867486815502, -0.9248976762779416, -0.925401048419587, -0.9258968561444082, -0.9263850904979498, -0.9268657425333863, -0.9273388033115272, -0.9278042639008268, -0.92826211537739, -0.9287123488249838, -0.9291549553350475, -0.9295899260067068, -0.9300172519467832, -0.9304369242698144, -0.9308489340980644, -0.9312532725615436, -0.9316499307980267, -0.9320388999530719, -0.932420171180041, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-1.455395484361962, -1.4550895962121784, -1.4547718290398945, -1.4544421778915775, -1.4541006378373758, -1.4537472039712278, -1.4533818714109736, -1.4530046352984691, -1.4526154907996986, -1.452214433104896, -1.4518014574286608, -1.451376559010082, -1.4509397331128613, -1.4504909750254376, -1.4500302800611173, -1.4495576435582023, -1.4490730608801232, -1.4485765274155735, -1.448068038578647, -1.4475475898089747, ...], y_list=[-0.9238682746001127, -0.9243867486815502, -0.9248976762779416, -0.925401048419587, -0.9258968561444082, -0.9263850904979498, -0.9268657425333863, -0.9273388033115272, -0.9278042639008268, -0.92826211537739, -0.9287123488249838, -0.9291549553350475, -0.9295899260067068, -0.9300172519467832, -0.9304369242698144, -0.9308489340980644, -0.9312532725615436, -0.9316499307980267, -0.9320388999530719, -0.932420171180041, ...])
    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([-0.37851009, -0.38276076, -0.38700677, ..., -0.36573055, -0.36999495, -0.37425481]), y = array([-0.00114152, -0.00389451, -0.00664746, ..., 0.00711742, 0.00436448, 0.00161149]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.37851009, -0.38276076, -0.38700677, ..., -0.36573055, -0.36999495, -0.37425481]), array([-0.00114152, -0.00389451, -0.00664746, ..., 0.00711742, 0.00436448, 0.00161149])], 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([-0.37851009, -0.38276076, -0.38700677, ..., -0.36573055, -0.36999495, -0.37425481]), array([-0.00114152, -0.00389451, -0.00664746, ..., 0.00711742, 0.00436448, 0.00161149])], 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([[-0.37851009, -0.38276076, -0.38700677, .... 0.00711742, 0.00436448, -0.00114152]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 8.84045509e-04, 1.7674039... 9.97343831e-01, 9.98229884e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=1607, 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([[-0.37851009, -0.38276076, -0.38700677, .... 0.00711742, 0.00436448, -0.00114152]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 8.84045509e-04, 1.7674039... 9.97343831e-01, 9.98229884e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 1607, 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>