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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 16:24:15

Orbital Elements for RST23
WDS: RST23 WDS ID/Discoverer
P: 140.000 Orbital period (years)
a: 0.569 Semi-major axis (arcseconds)
i: 105.9 Inclination (degrees)
Ω: 182.3 Longitude of ascending node (degrees)
T: 1973.590 Epoch of periastron passage (year)
e: 0.85 Eccentricity
ω: 79.4 Longitude of periastron (degrees)
Start-Year: 1955.0 Year
End-Year: 2095.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST23
Position: 005458.45-531439.0 Epoch-2000 right ascension and declination
WDS-ID: 00550-5315 WDS designation
Discoverer Code: RST23 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 10.5 Magnitude of the primary
V2: 10.8 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST23
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 16:24:15 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 = [0.16944954419695485, 0.16335239279538727, 0.15697619334883112, 0.1503018144918638, 0.14330735258507493, 0.13596753548915097, 0.12825295246736282, 0.12012904597423246, 0.11155477280400727, 0.10248080033380302, 0.09284704301289769, 0.08257926752393303, 0.07158441445415975, 0.059744366266820496, 0.04690876621252811, 0.03289233489489751, 0.01750726279593128, 0.0008026414830735188, -0.015543793152544944, -0.024495147637608555, ...], y_list = [-0.18593625278552436, -0.19161775804118988, -0.19697155626113846, -0.20195073702656768, -0.2064992539937215, -0.21054937225255294, -0.21401816036919663, -0.21680256480936613, -0.2187723219519385, -0.21975946584542125, -0.21954227770538426, -0.21781976675413078, -0.21416919635194334, -0.2079714104401032, -0.19827062580490987, -0.18348994065635787, -0.16080457592469782, -0.12471695151239127, -0.06518988396187021, 0.01966041244143708, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.16944954419695485, 0.16335239279538727, 0.15697619334883112, 0.1503018144918638, 0.14330735258507493, 0.13596753548915097, 0.12825295246736282, 0.12012904597423246, 0.11155477280400727, 0.10248080033380302, 0.09284704301289769, 0.08257926752393303, 0.07158441445415975, 0.059744366266820496, 0.04690876621252811, 0.03289233489489751, 0.01750726279593128, 0.0008026414830735188, -0.015543793152544944, -0.024495147637608555, ...], y_list=[-0.18593625278552436, -0.19161775804118988, -0.19697155626113846, -0.20195073702656768, -0.2064992539937215, -0.21054937225255294, -0.21401816036919663, -0.21680256480936613, -0.2187723219519385, -0.21975946584542125, -0.21954227770538426, -0.21781976675413078, -0.21416919635194334, -0.2079714104401032, -0.19827062580490987, -0.18348994065635787, -0.16080457592469782, -0.12471695151239127, -0.06518988396187021, 0.01966041244143708, ...])
    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([-0.01554379, 0.00080264, 0.01750726, 0...5, -0.01395584, -0.02190097, -0.02449515]), y = array([-0.06518988, -0.12471695, -0.16080458, -0...1, 0.15599169, 0.09810604, 0.01966041]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.01554379, 0.00080264, 0.01750726, 0...5, -0.01395584, -0.02190097, -0.02449515]), array([-0.06518988, -0.12471695, -0.16080458, -0...1, 0.15599169, 0.09810604, 0.01966041])], 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([-0.01554379, 0.00080264, 0.01750726, 0...5, -0.01395584, -0.02190097, -0.02449515]), array([-0.06518988, -0.12471695, -0.16080458, -0...1, 0.15599169, 0.09810604, 0.01966041])], 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([[-0.01554379, 0.00080264, 0.01750726, ... 0.15599169, 0.09810604, -0.06518988]]), 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. , 0.04106082, 0.06751181, 0.085...0752, 0.85243548, 0.89129972, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=147, 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([[-0.01554379, 0.00080264, 0.01750726, ... 0.15599169, 0.09810604, -0.06518988]]), 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. , 0.04106082, 0.06751181, 0.085...0752, 0.85243548, 0.89129972, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 147, 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>