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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:13:24

Orbital Elements for DAW105
WDS: DAW105 WDS ID/Discoverer
P: 150.000 Orbital period (years)
a: 0.256 Semi-major axis (arcseconds)
i: 84.6 Inclination (degrees)
Ω: 227.9 Longitude of ascending node (degrees)
T: 2032.600 Epoch of periastron passage (year)
e: 0.817 Eccentricity
ω: 233.7 Longitude of periastron (degrees)
Start-Year: 1950.0 Year
End-Year: 2100.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for DAW105
Position: 124723.24-293526.0 Epoch-2000 right ascension and declination
WDS-ID: 12474-2935 WDS designation
Discoverer Code: DAW105 Discover designation and components
ADS number: 8665 Aitken Double Star catalog
HD number: 111139 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.4 Magnitude of the primary
V2: 9.7 Magnitude of the secondary
Equinox: Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for DAW105
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:13:24 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 = [0.2405037266286893, 0.23908518479670157, 0.2375956045626062, 0.23603573885609122, 0.23440630533609141, 0.23270798773900095, 0.23094143732142275, 0.22910727409105505, 0.22720608799641384, 0.2252384400408559, 0.22320486332745018, 0.22110586404132962, 0.21894192237618657, 0.21671349341164015, 0.21442100778939202, 0.21206487285794273, 0.20964547298562425, 0.2071631704797947, 0.20461830619948945, 0.20201120018465124, ...], y_list = [-0.1721031087142478, -0.17046862962910575, -0.16878349975073006, -0.16704844025045956, -0.16526414576070797, -0.16343128565029927, -0.1615505054344433, -0.15962242797922074, -0.15764765468907344, -0.15562676663805472, -0.15356032565165612, -0.151448875346092, -0.14929294213193878, -0.14709303618907263, -0.14484965226509378, -0.14256327095385934, -0.14023435917979574, -0.13786337130031043, -0.13545074993103118, -0.13299692681262598, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.2405037266286893, 0.23908518479670157, 0.2375956045626062, 0.23603573885609122, 0.23440630533609141, 0.23270798773900095, 0.23094143732142275, 0.22910727409105505, 0.22720608799641384, 0.2252384400408559, 0.22320486332745018, 0.22110586404132962, 0.21894192237618657, 0.21671349341164015, 0.21442100778939202, 0.21206487285794273, 0.20964547298562425, 0.2071631704797947, 0.20461830619948945, 0.20201120018465124, ...], y_list=[-0.1721031087142478, -0.17046862962910575, -0.16878349975073006, -0.16704844025045956, -0.16526414576070797, -0.16343128565029927, -0.1615505054344433, -0.15962242797922074, -0.15764765468907344, -0.15562676663805472, -0.15356032565165612, -0.151448875346092, -0.14929294213193878, -0.14709303618907263, -0.14484965226509378, -0.14256327095385934, -0.14023435917979574, -0.13786337130031043, -0.13545074993103118, -0.13299692681262598, ...])
    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([ 0.00714429, 0.02838374, 0.04726879, 0...7, -0.0432949 , -0.03298938, -0.01492091]), y = array([-0.01335213, -0.03261402, -0.04912173, -0...3, 0.03948224, 0.02675644, 0.00779429]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([ 0.00714429, 0.02838374, 0.04726879, 0...7, -0.0432949 , -0.03298938, -0.01492091]), array([-0.01335213, -0.03261402, -0.04912173, -0...3, 0.03948224, 0.02675644, 0.00779429])], 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([ 0.00714429, 0.02838374, 0.04726879, 0...7, -0.0432949 , -0.03298938, -0.01492091]), array([-0.01335213, -0.03261402, -0.04912173, -0...3, 0.03948224, 0.02675644, 0.00779429])], 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([[ 0.00714429, 0.02838374, 0.04726879, ... 0.03948224, 0.02675644, -0.01335213]]), 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. , 0.03662199, 0.06865869, 0.096...7132, 0.90661485, 0.92752991, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=157, 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([[ 0.00714429, 0.02838374, 0.04726879, ... 0.03948224, 0.02675644, -0.01335213]]), 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. , 0.03662199, 0.06865869, 0.096...7132, 0.90661485, 0.92752991, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 157, 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>