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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:35:43

Orbital Elements for I1284
WDS: I1284 WDS ID/Discoverer
P: 240.000 Orbital period (years)
a: 0.301 Semi-major axis (arcseconds)
i: 79.6 Inclination (degrees)
Ω: 94.3 Longitude of ascending node (degrees)
T: 1955.760 Epoch of periastron passage (year)
e: 0.8 Eccentricity
ω: 122.9 Longitude of periastron (degrees)
Start-Year: 1905.0 Year
End-Year: 2145.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I1284
Position: 160450.75-404415.5 Epoch-2000 right ascension and declination
WDS-ID: 16048-4044 WDS designation
Discoverer Code: I1284 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 143941 HD catalog number
Hipparcos number: 78765 Hipparcos catalog number
V1: 8.5 Magnitude of the primary
V2: 8.8 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 I1284
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:35:43 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 = [-0.34225911015977073, -0.340669646461171, -0.33898509997287246, -0.3372029097808606, -0.33532037990588076, -0.33333466919879196, -0.331242780245132, -0.32904154715829986, -0.32672762212314993, -0.3242974605311981, -0.32174730452442124, -0.3190731647361121, -0.3162707999835367, -0.31333569462711536, -0.31026303326321436, -0.3070476723606721, -0.3036841083828429, -0.30016644185459573, -0.2964883367340696, -0.292642974327917, ...], y_list = [0.015801286842354288, 0.014977317767072236, 0.01414916952888523, 0.013316946827099989, 0.012480762719225179, 0.011640739515845917, 0.010797009784381013, 0.009949717477499478, 0.009099019204646312, 0.008245085668313685, 0.007388103290522943, 0.006528276059591829, 0.005665827632832972, 0.004801003737596301, 0.003934074921325251, 0.003065339711405151, 0.002195128258038781, 0.0013238065487941458, 0.0004517813026421563, -0.0004204943247066655, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.34225911015977073, -0.340669646461171, -0.33898509997287246, -0.3372029097808606, -0.33532037990588076, -0.33333466919879196, -0.331242780245132, -0.32904154715829986, -0.32672762212314993, -0.3242974605311981, -0.32174730452442124, -0.3190731647361121, -0.3162707999835367, -0.31333569462711536, -0.31026303326321436, -0.3070476723606721, -0.3036841083828429, -0.30016644185459573, -0.2964883367340696, -0.292642974327917, ...], y_list=[0.015801286842354288, 0.014977317767072236, 0.01414916952888523, 0.013316946827099989, 0.012480762719225179, 0.011640739515845917, 0.010797009784381013, 0.009949717477499478, 0.009099019204646312, 0.008245085668313685, 0.007388103290522943, 0.006528276059591829, 0.005665827632832972, 0.004801003737596301, 0.003934074921325251, 0.003065339711405151, 0.002195128258038781, 0.0013238065487941458, 0.0004517813026421563, -0.0004204943247066655, ...])
    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([-2.92642974e-01, -2.88623001e-01, -2.8442...08e-01, -3.00166442e-01, -2.96488337e-01]), y = array([-0.00042049, -0.00129251, -0.00216371, -0...4, 0.00219513, 0.00132381, 0.00045178]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-2.92642974e-01, -2.88623001e-01, -2.8442...08e-01, -3.00166442e-01, -2.96488337e-01]), array([-0.00042049, -0.00129251, -0.00216371, -0...4, 0.00219513, 0.00132381, 0.00045178])], 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([-2.92642974e-01, -2.88623001e-01, -2.8442...08e-01, -3.00166442e-01, -2.96488337e-01]), array([-0.00042049, -0.00129251, -0.00216371, -0...4, 0.00219513, 0.00132381, 0.00045178])], 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([[-2.92642974e-01, -2.88623001e-01, -2.844...e-03, 1.32380655e-03, -4.20494325e-04]]), 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. , 0.00437728, 0.00894443, 0.013...2813, 0.98792526, 0.99178166, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=247, 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([[-2.92642974e-01, -2.88623001e-01, -2.844...e-03, 1.32380655e-03, -4.20494325e-04]]), 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. , 0.00437728, 0.00894443, 0.013...2813, 0.98792526, 0.99178166, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 247, 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>