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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:32:27

Orbital Elements for I312
WDS: I312 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 1.297 Semi-major axis (arcseconds)
i: 95.9 Inclination (degrees)
Ω: 159.4 Longitude of ascending node (degrees)
T: 2012.580 Epoch of periastron passage (year)
e: 0.665 Eccentricity
ω: 94.7 Longitude of periastron (degrees)
Start-Year: 1775.0 Year
End-Year: 2275.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for I312
Position: 071530.78-755153.1 Epoch-2000 right ascension and declination
WDS-ID: 07155-7552 WDS designation
Discoverer Code: I312 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 58046 HD catalog number
Hipparcos number: 35102 Hipparcos catalog number
V1: 8.29 Magnitude of the primary
V2: 8.27 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for I312
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:32:27 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 = [0.1119221297033267, 0.10924432221462095, 0.10656275422763849, 0.10387751423288773, 0.10118869159247973, 0.09849637502935948, 0.09580065355832654, 0.09310161629361305, 0.09039935246476795, 0.08769395143264755, 0.08498550270550383, 0.0822740959552013, 0.07955982103354857, 0.0768427679887645, 0.07412302708208424, 0.07140068880451449, 0.06867584389374581, 0.06594858335122425, 0.0632189984594066, 0.06048718079918963, ...], y_list = [-0.32719449491899777, -0.3338659753201204, -0.34052596286874, -0.34717421791743924, -0.35381049792041197, -0.3604345611723837, -0.36704616449713695, -0.37364506372076006, -0.3802310136282122, -0.3868037679194829, -0.39336307916536667, -0.3999086987627735, -0.4064403768896104, -0.4129578624591771, -0.41946090307406786, -0.4259492449795496, -0.43242263301639555, -0.438880810573168, -0.4453235195378869, -0.45175050024910485, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.1119221297033267, 0.10924432221462095, 0.10656275422763849, 0.10387751423288773, 0.10118869159247973, 0.09849637502935948, 0.09580065355832654, 0.09310161629361305, 0.09039935246476795, 0.08769395143264755, 0.08498550270550383, 0.0822740959552013, 0.07955982103354857, 0.0768427679887645, 0.07412302708208424, 0.07140068880451449, 0.06867584389374581, 0.06594858335122425, 0.0632189984594066, 0.06048718079918963, ...], y_list=[-0.32719449491899777, -0.3338659753201204, -0.34052596286874, -0.34717421791743924, -0.35381049792041197, -0.3604345611723837, -0.36704616449713695, -0.37364506372076006, -0.3802310136282122, -0.3868037679194829, -0.39336307916536667, -0.3999086987627735, -0.4064403768896104, -0.4129578624591771, -0.41946090307406786, -0.4259492449795496, -0.43242263301639555, -0.438880810573168, -0.4453235195378869, -0.45175050024910485, ...])
    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([-4.95361831e-02, -6.21926585e-02, -7.4595...24e-02, -2.36584295e-02, -3.66741179e-02]), y = array([-0.00456517, -0.03847014, -0.07221856, -0...2, 0.09669472, 0.06315895, 0.02935846]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-4.95361831e-02, -6.21926585e-02, -7.4595...24e-02, -2.36584295e-02, -3.66741179e-02]), array([-0.00456517, -0.03847014, -0.07221856, -0...2, 0.09669472, 0.06315895, 0.02935846])], 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([-4.95361831e-02, -6.21926585e-02, -7.4595...24e-02, -2.36584295e-02, -3.66741179e-02]), array([-0.00456517, -0.03847014, -0.07221856, -0...2, 0.09669472, 0.06315895, 0.02935846])], 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([[-0.04953618, -0.06219266, -0.07459543, .... 0.09669472, 0.06315895, -0.00456517]]), 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. , 0.00906971, 0.01808054, 0.026...7183, 0.97280641, 0.9818307 , 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=507, 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([[-0.04953618, -0.06219266, -0.07459543, .... 0.09669472, 0.06315895, -0.00456517]]), 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. , 0.00906971, 0.01808054, 0.026...7183, 0.97280641, 0.9818307 , 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 507, 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>