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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:35:17

Orbital Elements for STT177
WDS: STT177 WDS ID/Discoverer
P: 174.000 Orbital period (years)
a: 0.334 Semi-major axis (arcseconds)
i: 180.0 Inclination (degrees)
Ω: 60.7 Longitude of ascending node (degrees)
T: 1956.640 Epoch of periastron passage (year)
e: 0.792 Eccentricity
ω: 105.6 Longitude of periastron (degrees)
Start-Year: 1938.0 Year
End-Year: 2112.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT177
Position: 074141.62+372548.2 Epoch-2000 right ascension and declination
WDS-ID: 07417+3726 WDS designation
Discoverer Code: STT177 Discover designation and components
ADS number: 6276 Aitken Double Star catalog
HD number: 61600 HD catalog number
Hipparcos number: 37483 Hipparcos catalog number
V1: 7.96 Magnitude of the primary
V2: 9.24 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2018 Date of last observation
Orbit grade: 3 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for STT177
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:35:17 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 = [-0.3042750731552323, -0.294105955562159, -0.2833755890750398, -0.2720396666129393, -0.2600474230761624, -0.24734030273744306, -0.23385028103969152, -0.21949774275394912, -0.20418879905619264, -0.18781192146605374, -0.17023382043991273, -0.15129471200282457, -0.13080380813974174, -0.10853791593372714, -0.08425195859231473, -0.05772714850821915, -0.028928041427535408, 0.0015669670754474717, 0.031713178556654724, 0.05757954604709897, ...], y_list = [-0.018219377891221546, -0.009530180946299219, -0.0008230885080206053, 0.00788540048806842, 0.01657440745424822, 0.02521726263099444, 0.033779527023093295, 0.04221616781501162, 0.0504674401641932, 0.05845274321757709, 0.06606121963063175, 0.0731369757022151, 0.07945517817374136, 0.08468235503531314, 0.08830927926476126, 0.0895387126665079, 0.08711608270970654, 0.07918122958433736, 0.06361130441397965, 0.03978222972315108, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.3042750731552323, -0.294105955562159, -0.2833755890750398, -0.2720396666129393, -0.2600474230761624, -0.24734030273744306, -0.23385028103969152, -0.21949774275394912, -0.20418879905619264, -0.18781192146605374, -0.17023382043991273, -0.15129471200282457, -0.13080380813974174, -0.10853791593372714, -0.08425195859231473, -0.05772714850821915, -0.028928041427535408, 0.0015669670754474717, 0.031713178556654724, 0.05757954604709897, ...], y_list=[-0.018219377891221546, -0.009530180946299219, -0.0008230885080206053, 0.00788540048806842, 0.01657440745424822, 0.02521726263099444, 0.033779527023093295, 0.04221616781501162, 0.0504674401641932, 0.05845274321757709, 0.06606121963063175, 0.0731369757022151, 0.07945517817374136, 0.08468235503531314, 0.08830927926476126, 0.0895387126665079, 0.08711608270970654, 0.07918122958433736, 0.06361130441397965, 0.03978222972315108, ...])
    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([-0.28337559, -0.29410596, -0.30427507, -0...23385028, -0.2473403 , -0.26004742, -0.27203967]), y = array([-0.00082309, -0.00953018, -0.01821938, -0...03377953, 0.02521726, 0.01657441, 0.0078854 ]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.28337559, -0.29410596, -0.30427507, -0...23385028, -0.2473403 , -0.26004742, -0.27203967]), array([-0.00082309, -0.00953018, -0.01821938, -0...03377953, 0.02521726, 0.01657441, 0.0078854 ])], 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([-0.28337559, -0.29410596, -0.30427507, -0...23385028, -0.2473403 , -0.26004742, -0.27203967]), array([-0.00082309, -0.00953018, -0.01821938, -0...03377953, 0.02521726, 0.01657441, 0.0078854 ])], 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([[-0.28337559, -0.29410596, -0.30427507, -...3377953, 0.02521726, 0.01657441, -0.00082309]]), 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. , 0.00806164, 0.01586496, 0.015... 0.96473595, 0.97405728, 0.98302271, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=181, 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([[-0.28337559, -0.29410596, -0.30427507, -...3377953, 0.02521726, 0.01657441, -0.00082309]]), 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. , 0.00806164, 0.01586496, 0.015... 0.96473595, 0.97405728, 0.98302271, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 181, 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>