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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:47:07

Orbital Elements for FIN257
WDS: FIN257 WDS ID/Discoverer
P: 700.000 Orbital period (years)
a: 0.79 Semi-major axis (arcseconds)
i: 49.2 Inclination (degrees)
Ω: 55.7 Longitude of ascending node (degrees)
T: 2017.950 Epoch of periastron passage (year)
e: 0.8 Eccentricity
ω: 49.2 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 FIN257
Position: 173056.97-562040.5 Epoch-2000 right ascension and declination
WDS-ID: 17309-5621 WDS designation
Discoverer Code: FIN257 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.5 Magnitude of the primary
V2: 9.9 Magnitude of the secondary
Equinox: Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for FIN257
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:47:07 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 = [1.1571393357308264, 1.156108845679805, 1.155062366962445, 1.1539999095194018, 1.1529214829887775, 1.1518270967068989, 1.1507167597090666, 1.1495904807302801, 1.1484482682059298, 1.1472901302724592, 1.146116074768006, 1.1449261092330074, 1.143720240910785, 1.1424984767480955, 1.1412608233956625, 1.140007287208677, 1.1387378742472734, 1.1374525902769763, 1.1361514407691309, 1.1348344307408291, ...], y_list = [0.0704116614875577, 0.07224694425569685, 0.07408122786732002, 0.07591448666395681, 0.077746694951915, 0.07957782700005905, 0.08140785703757954, 0.08323675925174934, 0.08506450778567537, 0.08689107673604043, 0.08871644015082941, 0.09054057202705258, 0.09236344630844807, 0.09418503688318218, 0.09600531758152446, 0.09782426217352033, 0.09964184436664189, 0.10145803780342975, 0.10327281605911286, 0.10508615285874841, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[1.1571393357308264, 1.156108845679805, 1.155062366962445, 1.1539999095194018, 1.1529214829887775, 1.1518270967068989, 1.1507167597090666, 1.1495904807302801, 1.1484482682059298, 1.1472901302724592, 1.146116074768006, 1.1449261092330074, 1.143720240910785, 1.1424984767480955, 1.1412608233956625, 1.140007287208677, 1.1387378742472734, 1.1374525902769763, 1.1361514407691309, 1.1348344307408291, ...], y_list=[0.0704116614875577, 0.07224694425569685, 0.07408122786732002, 0.07591448666395681, 0.077746694951915, 0.07957782700005905, 0.08140785703757954, 0.08323675925174934, 0.08506450778567537, 0.08689107673604043, 0.08871644015082941, 0.09054057202705258, 0.09236344630844807, 0.09418503688318218, 0.09600531758152446, 0.09782426217352033, 0.09964184436664189, 0.10145803780342975, 0.10327281605911286, 0.10508615285874841, ...])
    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([-0.12891687, -0.12003378, -0.10996059, -0... , -0.14760011, -0.14273791, -0.13650535]), y = array([-7.21179005e-03, -2.37225030e-02, -3.9998...06e-02, 2.58619289e-02, 9.37131129e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.12891687, -0.12003378, -0.10996059, -0... , -0.14760011, -0.14273791, -0.13650535]), array([-7.21179005e-03, -2.37225030e-02, -3.9998...06e-02, 2.58619289e-02, 9.37131129e-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([-0.12891687, -0.12003378, -0.10996059, -0... , -0.14760011, -0.14273791, -0.13650535]), array([-7.21179005e-03, -2.37225030e-02, -3.9998...06e-02, 2.58619289e-02, 9.37131129e-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([[-0.12891687, -0.12003378, -0.10996059, .... 0.04210537, 0.02586193, -0.00721179]]), 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. , 0.00561712, 0.01135185, 0.017...1267, 0.98418079, 0.98926068, 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([[-0.12891687, -0.12003378, -0.10996059, .... 0.04210537, 0.02586193, -0.00721179]]), 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. , 0.00561712, 0.01135185, 0.017...1267, 0.98418079, 0.98926068, 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>