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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 18:31:59

Orbital Elements for LIM7
WDS: LIM7 WDS ID/Discoverer
P: 48.000 Orbital period (years)
a: 0.13 Semi-major axis (arcseconds)
i: 28.0 Inclination (degrees)
Ω: 132.0 Longitude of ascending node (degrees)
T: 2050.529 Epoch of periastron passage (year)
e: 0.11 Eccentricity
ω: 128.0 Longitude of periastron (degrees)
Start-Year: 2001.0 Year
End-Year: 2049.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for LIM7
Position: 153417.06+161546.7 Epoch-2000 right ascension and declination
WDS-ID: 15343+1616 WDS designation
Discoverer Code: LIM7 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 16.4 Magnitude of the primary
V2: 17.6 Magnitude of the secondary
Equinox: Equinox
Date: 2015 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for LIM7
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ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:31:59 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 = [0.09739656157169393, 0.10420819749994861, 0.10849651230782163, 0.11015719759769076, 0.10917039370809074, 0.10559941040150445, 0.09958358790392335, 0.09132659976788489, 0.0810819973140151, 0.06913786851932939, 0.05580219984574159, 0.041390051915171, 0.026213140404449442, 0.010571971187129879, -0.005249634629350127, -0.020987970094780282, -0.03640124188150638, -0.05127015255726219, -0.06539763324020363, -0.07860803103965806, ...], y_list = [-0.03862842990546228, -0.021477263597103207, -0.003806359281453413, 0.013957000724147038, 0.031385739351695224, 0.04807287393183121, 0.0636488416994647, 0.07779466152276426, 0.09025015411502817, 0.10081726754192495, 0.10935919950901002, 0.11579636167675149, 0.12010032056121978, 0.12228673817056651, 0.12240811894551612, 0.12054692465759054, 0.1168093962569588, 0.11132024529663256, 0.10421825244807931, 0.09565273093663276, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.09739656157169393, 0.10420819749994861, 0.10849651230782163, 0.11015719759769076, 0.10917039370809074, 0.10559941040150445, 0.09958358790392335, 0.09132659976788489, 0.0810819973140151, 0.06913786851932939, 0.05580219984574159, 0.041390051915171, 0.026213140404449442, 0.010571971187129879, -0.005249634629350127, -0.020987970094780282, -0.03640124188150638, -0.05127015255726219, -0.06539763324020363, -0.07860803103965806, ...], y_list=[-0.03862842990546228, -0.021477263597103207, -0.003806359281453413, 0.013957000724147038, 0.031385739351695224, 0.04807287393183121, 0.0636488416994647, 0.07779466152276426, 0.09025015411502817, 0.10081726754192495, 0.10935919950901002, 0.11579636167675149, 0.12010032056121978, 0.12228673817056651, 0.12240811894551612, 0.12054692465759054, 0.1168093962569588, 0.11132024529663256, 0.10421825244807931, 0.09565273093663276, ...])
    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([-0.13634904, -0.13637623, -0.13467439, -0...11945011, -0.12610783, -0.13117911, -0.13460711]), y = array([-0.00581272, -0.02002244, -0.033978 , -0...04997374, 0.03654043, 0.02264724, 0.00847028]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.13634904, -0.13637623, -0.13467439, -0...11945011, -0.12610783, -0.13117911, -0.13460711]), array([-0.00581272, -0.02002244, -0.033978 , -0...04997374, 0.03654043, 0.02264724, 0.00847028])], 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([-0.13634904, -0.13637623, -0.13467439, -0...11945011, -0.12610783, -0.13117911, -0.13460711]), array([-0.00581272, -0.02002244, -0.033978 , -0...04997374, 0.03654043, 0.02264724, 0.00847028])], 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([[-0.13634904, -0.13637623, -0.13467439, -...4997374, 0.03654043, 0.02264724, -0.00581272]]), 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. , 0.0185322 , 0.03686774, 0.055... 0.92343339, 0.94298663, 0.96227536, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=55, 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([[-0.13634904, -0.13637623, -0.13467439, -...4997374, 0.03654043, 0.02264724, -0.00581272]]), 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. , 0.0185322 , 0.03686774, 0.055... 0.92343339, 0.94298663, 0.96227536, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 55, 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>