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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:55:01

Orbital Elements for KOH86AA,ABC
WDS: KOH86AA,ABC WDS ID/Discoverer
P: 8.000 Orbital period (years)
a: 0.0066 Semi-major axis (arcseconds)
i: 67.0 Inclination (degrees)
Ω: 336.6 Longitude of ascending node (degrees)
T: 2023.400 Epoch of periastron passage (year)
e: 0.0 Eccentricity
ω: 0.0 Longitude of periastron (degrees)
Start-Year: 2021.0 Year
End-Year: 2029.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KOH86AA,ABC
Position: 095313.72-793328.5 Epoch-2000 right ascension and declination
WDS-ID: 09527-7933 WDS designation
Discoverer Code: KOH86AA,ABC Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 86588 HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.37 Magnitude of the primary
V2: 11.53 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 9 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for KOH86AA,ABC
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:55:01 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 = [0.0014409050689000297, 0.003298760003158724, 0.0032242460665809526, 0.0012610125126281645, -0.0014409050689000286, -0.003298760003158724, -0.003224246066580953, -0.001261012512628165, 0.0014409050689000297], y_list = [-0.002845820111935935, 0.0018373557311781449, 0.00544423350587201, 0.005861953129552069, 0.002845820111935937, -0.0018373557311781486, -0.005444233505872009, -0.00586195312955207, -0.002845820111935935]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.0014409050689000297, 0.003298760003158724, 0.0032242460665809526, 0.0012610125126281645, -0.0014409050689000286, -0.003298760003158724, -0.003224246066580953, -0.001261012512628165, 0.0014409050689000297], y_list=[-0.002845820111935935, 0.0018373557311781449, 0.00544423350587201, 0.005861953129552069, 0.002845820111935937, -0.0018373557311781486, -0.005444233505872009, -0.00586195312955207, -0.002845820111935935])
    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([-0.00329876, -0.00322425, -0.00126101, 0...00329876, 0.00322425, 0.00126101, -0.00144091]), y = array([-0.00183736, -0.00544423, -0.00586195, -0...00183736, 0.00544423, 0.00586195, 0.00284582]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.00329876, -0.00322425, -0.00126101, 0...00329876, 0.00322425, 0.00126101, -0.00144091]), array([-0.00183736, -0.00544423, -0.00586195, -0...00183736, 0.00544423, 0.00586195, 0.00284582])], 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([-0.00329876, -0.00322425, -0.00126101, 0...00329876, 0.00322425, 0.00126101, -0.00144091]), array([-0.00183736, -0.00544423, -0.00586195, -0...00183736, 0.00544423, 0.00586195, 0.00284582])], 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([[-0.00329876, -0.00322425, -0.00126101, ...0183736, 0.00544423, 0.00586195, -0.00183736]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.12327308, 0.19185833, 0.330... 0.50238111, 0.62565419, 0.69423944, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=15, 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([[-0.00329876, -0.00322425, -0.00126101, ...0183736, 0.00544423, 0.00586195, -0.00183736]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.12327308, 0.19185833, 0.330... 0.50238111, 0.62565419, 0.69423944, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 15, 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>