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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 17:27:00

Orbital Elements for STF932
WDS: STF932 WDS ID/Discoverer
P: 2360.000 Orbital period (years)
a: 3.21 Semi-major axis (arcseconds)
i: 124.14 Inclination (degrees)
Ω: 4.24 Longitude of ascending node (degrees)
T: 2215.000 Epoch of periastron passage (year)
e: 0.2 Eccentricity
ω: 119.73 Longitude of periastron (degrees)
Start-Year: 845.0 Year
End-Year: 3205.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STF932
Position: 063421.57+144508.3 Epoch-2000 right ascension and declination
WDS-ID: 06344+1445 WDS designation
Discoverer Code: STF932 Discover designation and components
ADS number: 5197 Aitken Double Star catalog
HD number: 46495 HD catalog number
Hipparcos number: 31345 Hipparcos catalog number
V1: 8.31 Magnitude of the primary
V2: 8.54 Magnitude of the secondary
Equinox: 1900 Equinox
Date: 1959 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STF932
--> -->
 
 
ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:27:00 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 = [-2.140874062022675, -2.141045110417653, -2.1412069807144034, -2.141359676495496, -2.1415032013585886, -2.141637558916387, -2.1417627527966077, -2.1418787866419375, -2.141985664109993, -2.142083388873285, -2.142171964619179, -2.1422513950498563, -2.1423216838822805, -2.1423828348481537, -2.1424348516938894, -2.142477738180567, -2.1425114980839024, -2.142536135194211, -2.1425516533163713, -2.1425580562697917, ...], y_list = [0.48988072219013123, 0.4969660283950979, 0.5040492042395404, 0.5111302203664254, 0.518209047450332, 0.5252856561973287, 0.5323600173448397, 0.5394321016615364, 0.5465018799471899, 0.5535693230325538, 0.560634401779264, 0.5676970870796799, 0.574757349856781, 0.5818151610640327, 0.5888704916852713, 0.5959233127345841, 0.6029735952561599, 0.6100213103242113, 0.617066429042804, 0.624108922545777, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-2.140874062022675, -2.141045110417653, -2.1412069807144034, -2.141359676495496, -2.1415032013585886, -2.141637558916387, -2.1417627527966077, -2.1418787866419375, -2.141985664109993, -2.142083388873285, -2.142171964619179, -2.1422513950498563, -2.1423216838822805, -2.1423828348481537, -2.1424348516938894, -2.142477738180567, -2.1425114980839024, -2.142536135194211, -2.1425516533163713, -2.1425580562697917, ...], y_list=[0.48988072219013123, 0.4969660283950979, 0.5040492042395404, 0.5111302203664254, 0.518209047450332, 0.5252856561973287, 0.5323600173448397, 0.5394321016615364, 0.5465018799471899, 0.5535693230325538, 0.560634401779264, 0.5676970870796799, 0.574757349856781, 0.5818151610640327, 0.5888704916852713, 0.5959233127345841, 0.6029735952561599, 0.6100213103242113, 0.617066429042804, 0.624108922545777, ...])
    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([-2.10671806, -2.10589659, -2.10506573, ..., -2.10912614, -2.10833283, -2.10753014]), y = array([-0.00243789, -0.00959734, -0.01675675, ..., 0.01904042, 0.01188102, 0.00472158]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-2.10671806, -2.10589659, -2.10506573, ..., -2.10912614, -2.10833283, -2.10753014]), array([-0.00243789, -0.00959734, -0.01675675, ..., 0.01904042, 0.01188102, 0.00472158])], 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([-2.10671806, -2.10589659, -2.10506573, ..., -2.10912614, -2.10833283, -2.10753014]), array([-0.00243789, -0.00959734, -0.01675675, ..., 0.01904042, 0.01188102, 0.00472158])], 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([[-2.10671806, -2.10589659, -2.10506573, .... 0.01904042, 0.01188102, -0.00243789]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 4.54346364e-04, 9.0875791... 9.98637364e-01, 9.99091508e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=2367, 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([[-2.10671806, -2.10589659, -2.10506573, .... 0.01904042, 0.01188102, -0.00243789]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 4.54346364e-04, 9.0875791... 9.98637364e-01, 9.99091508e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 2367, 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>