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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:44:52

Orbital Elements for SEE322AB
WDS: SEE322AB WDS ID/Discoverer
P: 536.000 Orbital period (years)
a: 0.35 Semi-major axis (arcseconds)
i: 111.0 Inclination (degrees)
Ω: 167.0 Longitude of ascending node (degrees)
T: 1870.000 Epoch of periastron passage (year)
e: 0.64 Eccentricity
ω: 109.0 Longitude of periastron (degrees)
Start-Year: 1757.0 Year
End-Year: 2293.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for SEE322AB
Position: 171550.75-334413.2 Epoch-2000 right ascension and declination
WDS-ID: 17158-3344 WDS designation
Discoverer Code: SEE322AB Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 155889 HD catalog number
Hipparcos number: 84444 Hipparcos catalog number
V1: 7.04 Magnitude of the primary
V2: 7.65 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2006 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for SEE322AB
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:44:52 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 = [0.00640544769923747, 0.00530409876887842, 0.004202344815576576, 0.0031002653547245523, 0.0019979422761008804, 0.0008954599386794135, -0.0002070947301407375, -0.0013096321306356707, -0.0024120598819417733, -0.003514282708040785, -0.0046162023182655144, -0.00571771728201083, -0.006818722897325661, -0.007919111053035867, -0.009018770084027097, -0.010117584619291086, -0.011215435422313104, -0.0123121992233538, -0.013407748543141898, -0.014501951507470238, ...], y_list = [-0.36165272775241397, -0.36120068863218546, -0.36072105449618636, -0.36021346178884156, -0.3596775390510438, -0.3591129066846231, -0.35851917670820904, -0.35789595250411743, -0.3572428285558823, -0.3565593901760347, -0.3558452132237112, -0.35509986381165626, -0.3543228980021638, -0.35351386149148173, -0.35267228928218036, -0.3517977053429673, -0.35088962225540354, -0.34994754084695434, -0.3489709498097847, -0.3479593253046765, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.00640544769923747, 0.00530409876887842, 0.004202344815576576, 0.0031002653547245523, 0.0019979422761008804, 0.0008954599386794135, -0.0002070947301407375, -0.0013096321306356707, -0.0024120598819417733, -0.003514282708040785, -0.0046162023182655144, -0.00571771728201083, -0.006818722897325661, -0.007919111053035867, -0.009018770084027097, -0.010117584619291086, -0.011215435422313104, -0.0123121992233538, -0.013407748543141898, -0.014501951507470238, ...], y_list=[-0.36165272775241397, -0.36120068863218546, -0.36072105449618636, -0.36021346178884156, -0.3596775390510438, -0.3591129066846231, -0.35851917670820904, -0.35789595250411743, -0.3572428285558823, -0.3565593901760347, -0.3558452132237112, -0.35509986381165626, -0.3543228980021638, -0.35351386149148173, -0.35267228928218036, -0.3517977053429673, -0.35088962225540354, -0.34994754084695434, -0.3489709498097847, -0.3479593253046765, ...])
    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([-0.04966131, -0.05164008, -0.05349042, -0...8, -0.04296197, -0.04532041, -0.04755433]), y = array([-0.00748964, -0.01574694, -0.0239652 , -0...5, 0.01731048, 0.00906118, 0.00078688]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.04966131, -0.05164008, -0.05349042, -0...8, -0.04296197, -0.04532041, -0.04755433]), array([-0.00748964, -0.01574694, -0.0239652 , -0...5, 0.01731048, 0.00906118, 0.00078688])], 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([-0.04966131, -0.05164008, -0.05349042, -0...8, -0.04296197, -0.04532041, -0.04755433]), array([-0.00748964, -0.01574694, -0.0239652 , -0...5, 0.01731048, 0.00906118, 0.00078688])], 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([[-0.04966131, -0.05164008, -0.05349042, .... 0.01731048, 0.00906118, -0.00748964]]), 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. , 0.00649537, 0.0129394 , 0.019...9427, 0.98034778, 0.98691102, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=543, 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([[-0.04966131, -0.05164008, -0.05349042, .... 0.01731048, 0.00906118, -0.00748964]]), 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. , 0.00649537, 0.0129394 , 0.019...9427, 0.98034778, 0.98691102, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 543, 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>