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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:31:38

Orbital Elements for STT462AB
WDS: STT462AB WDS ID/Discoverer
P: 3710.000 Orbital period (years)
a: 1.968 Semi-major axis (arcseconds)
i: 117.1 Inclination (degrees)
Ω: 163.6 Longitude of ascending node (degrees)
T: 2262.400 Epoch of periastron passage (year)
e: 0.347 Eccentricity
ω: 278.1 Longitude of periastron (degrees)
Start-Year: 170.0 Year
End-Year: 3880.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT462AB
Position: 220702.19+360537.4 Epoch-2000 right ascension and declination
WDS-ID: 22070+3605 WDS designation
Discoverer Code: STT462AB Discover designation and components
ADS number: 15645 Aitken Double Star catalog
HD number: 210087 HD catalog number
Hipparcos number: 109180 Hipparcos catalog number
V1: 8.05 Magnitude of the primary
V2: 9.53 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STT462AB
--> -->
 
 
ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:31:38 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 = [-1.1928363402088455, -1.1923608044999467, -1.1918838205850746, -1.1914053894656402, -1.1909255121425193, -1.190444189616058, -1.1899614228860707, -1.1894772129518432, -1.1889915608121364, -1.1885044674651841, -1.1880159339086993, -1.1875259611398727, -1.1870345501553754, -1.1865417019513615, -1.1860474175234683, -1.18555169786682, -1.1850545439760272, -1.184555956845192, -1.1840559374679058, -1.183554486837254, ...], y_list = [0.16530870199540926, 0.16759214500274938, 0.16987538445779243, 0.17215841764754153, 0.17444124186058574, 0.17672385438708832, 0.17900625251878233, 0.18128843354897006, 0.18357039477249867, 0.185852133485768, 0.1881336469867113, 0.1904149325747967, 0.1926959875510113, 0.19497680921786176, 0.1972573948793599, 0.19953774184101664, 0.20181784740983919, 0.20409770889431125, 0.20637732360439945, 0.20865668885154023, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-1.1928363402088455, -1.1923608044999467, -1.1918838205850746, -1.1914053894656402, -1.1909255121425193, -1.190444189616058, -1.1899614228860707, -1.1894772129518432, -1.1889915608121364, -1.1885044674651841, -1.1880159339086993, -1.1875259611398727, -1.1870345501553754, -1.1865417019513615, -1.1860474175234683, -1.18555169786682, -1.1850545439760272, -1.184555956845192, -1.1840559374679058, -1.183554486837254, ...], y_list=[0.16530870199540926, 0.16759214500274938, 0.16987538445779243, 0.17215841764754153, 0.17444124186058574, 0.17672385438708832, 0.17900625251878233, 0.18128843354897006, 0.18357039477249867, 0.185852133485768, 0.1881336469867113, 0.1904149325747967, 0.1926959875510113, 0.19497680921786176, 0.1972573948793599, 0.19953774184101664, 0.20181784740983919, 0.20409770889431125, 0.20637732360439945, 0.20865668885154023, ...])
    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([-1.2235705 , -1.22393605, -1.22430008, ..., -1.22246471, -1.22283483, -1.22320343]), y = array([-0.00174705, -0.0040379 , -0.00632875, ..., 0.00512552, 0.00283467, 0.00054381]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.2235705 , -1.22393605, -1.22430008, ..., -1.22246471, -1.22283483, -1.22320343]), array([-0.00174705, -0.0040379 , -0.00632875, ..., 0.00512552, 0.00283467, 0.00054381])], 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([-1.2235705 , -1.22393605, -1.22430008, ..., -1.22246471, -1.22283483, -1.22320343]), array([-0.00174705, -0.0040379 , -0.00632875, ..., 0.00512552, 0.00283467, 0.00054381])], 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([[-1.2235705 , -1.22393605, -1.22430008, .... 0.00512552, 0.00283467, -0.00174705]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 2.61206920e-04, 5.2238627... 9.99216216e-01, 9.99477504e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=3717, 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([[-1.2235705 , -1.22393605, -1.22430008, .... 0.00512552, 0.00283467, -0.00174705]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 2.61206920e-04, 5.2238627... 9.99216216e-01, 9.99477504e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 3717, 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>