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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:41:44

Orbital Elements for JNN138
WDS: JNN138 WDS ID/Discoverer
P: 20.000 Orbital period (years)
a: 0.29 Semi-major axis (arcseconds)
i: 126.0 Inclination (degrees)
Ω: 172.0 Longitude of ascending node (degrees)
T: 2019.130 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 298.0 Longitude of periastron (degrees)
Start-Year: 2015.0 Year
End-Year: 2035.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for JNN138
Position: 232611.86+170007.9 Epoch-2000 right ascension and declination
WDS-ID: 23262+1700 WDS designation
Discoverer Code: JNN138 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 14.0 Magnitude of the primary
V2: 15.9 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2016 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for JNN138
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:41:44 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 = [0.14573348194224678, 0.16772675052486616, 0.17330175614512425, 0.1619127784095619, 0.1346746498106102, 0.0942536281547352, 0.04460640467143262, -0.009407204492206203, -0.062499970936300116, -0.10947480476224568, -0.14573348194224678, -0.16772675052486616, -0.17330175614512425, -0.16191277840956203, -0.1346746498106102, -0.09425362815473537, -0.044606404671432634, 0.009407204492206485, 0.062499970936300095, 0.10947480476224589, ...], y_list = [0.19138061844137502, 0.11544425048435795, 0.02820739494254214, -0.06179059694872713, -0.14574009469024996, -0.21542353653254337, -0.26401982167499466, -0.2867720071376329, -0.28145295048357755, -0.2485833180381743, -0.19138061844137497, -0.11544425048435793, -0.028207394942542107, 0.06179059694872666, 0.14574009469024996, 0.2154235365325432, 0.26401982167499466, 0.28677200713763296, 0.28145295048357755, 0.24858331803817404, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.14573348194224678, 0.16772675052486616, 0.17330175614512425, 0.1619127784095619, 0.1346746498106102, 0.0942536281547352, 0.04460640467143262, -0.009407204492206203, -0.062499970936300116, -0.10947480476224568, -0.14573348194224678, -0.16772675052486616, -0.17330175614512425, -0.16191277840956203, -0.1346746498106102, -0.09425362815473537, -0.044606404671432634, 0.009407204492206485, 0.062499970936300095, 0.10947480476224589, ...], y_list=[0.19138061844137502, 0.11544425048435795, 0.02820739494254214, -0.06179059694872713, -0.14574009469024996, -0.21542353653254337, -0.26401982167499466, -0.2867720071376329, -0.28145295048357755, -0.2485833180381743, -0.19138061844137497, -0.11544425048435793, -0.028207394942542107, 0.06179059694872666, 0.14574009469024996, 0.2154235365325432, 0.26401982167499466, 0.28677200713763296, 0.28145295048357755, 0.24858331803817404, ...])
    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([-0.17330176, -0.16772675, -0.14573348, -0... , -0.09425363, -0.13467465, -0.16191278]), y = array([-0.02820739, -0.11544425, -0.19138062, -0...2, 0.21542354, 0.14574009, 0.0617906 ]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.17330176, -0.16772675, -0.14573348, -0... , -0.09425363, -0.13467465, -0.16191278]), array([-0.02820739, -0.11544425, -0.19138062, -0...2, 0.21542354, 0.14574009, 0.0617906 ])], 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([-0.17330176, -0.16772675, -0.14573348, -0... , -0.09425363, -0.13467465, -0.16191278]), array([-0.02820739, -0.11544425, -0.19138062, -0...2, 0.21542354, 0.14574009, 0.0617906 ])], 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([[-0.17330176, -0.16772675, -0.14573348, -... 0.21542354, 0.14574009, -0.02820739]]), 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. , 0.05970064, 0.11369335, 0.159...4255, 0.82328943, 0.87830736, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=27, 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([[-0.17330176, -0.16772675, -0.14573348, -... 0.21542354, 0.14574009, -0.02820739]]), 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. , 0.05970064, 0.11369335, 0.159...4255, 0.82328943, 0.87830736, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 27, 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>