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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:24:25

Orbital Elements for RST4800
WDS: RST4800 WDS ID/Discoverer
P: 174.000 Orbital period (years)
a: 0.275 Semi-major axis (arcseconds)
i: 131.3 Inclination (degrees)
Ω: 191.0 Longitude of ascending node (degrees)
T: 2002.900 Epoch of periastron passage (year)
e: 0.505 Eccentricity
ω: 248.4 Longitude of periastron (degrees)
Start-Year: 1938.0 Year
End-Year: 2112.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST4800
Position: 061214.17-364522.8 Epoch-2000 right ascension and declination
WDS-ID: 06122-3645 WDS designation
Discoverer Code: RST4800 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 43011 HD catalog number
Hipparcos number: 29443 Hipparcos catalog number
V1: 9.90 Magnitude of the primary
V2: 10.26 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST4800
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:24:25 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 = [-0.25016041637855424, -0.25034740461661464, -0.25042199017079264, -0.25038247120948137, -0.2502270888633983, -0.24995402460561333, -0.24956139751105413, -0.24904726138977742, -0.2484096017884301, -0.24764633285457927, -0.24675529405897026, -0.24573424672761363, -0.2445808706124338, -0.24329275997463967, -0.24186741981537166, -0.24030226181595282, -0.23859460015308068, -0.236741647169809, -0.2347405089122429, -0.23258818054678618, ...], y_list = [-0.07384766026732474, -0.06768471177199964, -0.061491380416739266, -0.05527003769888475, -0.04902312659838491, -0.04275316797667082, -0.03646276743757819, -0.03015462269720974, -0.023831531514661993, -0.017496400241110734, -0.011152253051103768, -0.004802241671453453, 0.0015503429083887307, 0.007902059903605362, 0.014249305251165292, 0.020588297895715334, 0.02691506465780711, 0.033225423714519725, 0.03951496653853277, 0.04577903812294721, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.25016041637855424, -0.25034740461661464, -0.25042199017079264, -0.25038247120948137, -0.2502270888633983, -0.24995402460561333, -0.24956139751105413, -0.24904726138977742, -0.2484096017884301, -0.24764633285457927, -0.24675529405897026, -0.24573424672761363, -0.2445808706124338, -0.24329275997463967, -0.24186741981537166, -0.24030226181595282, -0.23859460015308068, -0.236741647169809, -0.2347405089122429, -0.23258818054678618, ...], y_list=[-0.07384766026732474, -0.06768471177199964, -0.061491380416739266, -0.05527003769888475, -0.04902312659838491, -0.04275316797667082, -0.03646276743757819, -0.03015462269720974, -0.023831531514661993, -0.017496400241110734, -0.011152253051103768, -0.004802241671453453, 0.0015503429083887307, 0.007902059903605362, 0.014249305251165292, 0.020588297895715334, 0.02691506465780711, 0.033225423714519725, 0.03951496653853277, 0.04577903812294721, ...])
    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([-0.24573425, -0.24675529, -0.24764633, -0...24030226, -0.24186742, -0.24329276, -0.24458087]), y = array([-4.80224167e-03, -1.11522531e-02, -1.7496....42493053e-02, 7.90205990e-03, 1.55034291e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.24573425, -0.24675529, -0.24764633, -0...24030226, -0.24186742, -0.24329276, -0.24458087]), array([-4.80224167e-03, -1.11522531e-02, -1.7496....42493053e-02, 7.90205990e-03, 1.55034291e-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([-0.24573425, -0.24675529, -0.24764633, -0...24030226, -0.24186742, -0.24329276, -0.24458087]), array([-4.80224167e-03, -1.11522531e-02, -1.7496....42493053e-02, 7.90205990e-03, 1.55034291e-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([[-2.45734247e-01, -2.46755294e-01, -2.476...e-02, 7.90205990e-03, -4.80224167e-03]]), 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. , 0.00483618, 0.00965343, 0.014... 0.98047096, 0.98538067, 0.99027229, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=181, 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([[-2.45734247e-01, -2.46755294e-01, -2.476...e-02, 7.90205990e-03, -4.80224167e-03]]), 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. , 0.00483618, 0.00965343, 0.014... 0.98047096, 0.98538067, 0.99027229, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 181, 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>