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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:10:05

Orbital Elements for RST1658
WDS: RST1658 WDS ID/Discoverer
P: 62.000 Orbital period (years)
a: 0.68 Semi-major axis (arcseconds)
i: 51.4 Inclination (degrees)
Ω: 116.9 Longitude of ascending node (degrees)
T: 2047.370 Epoch of periastron passage (year)
e: 0.226 Eccentricity
ω: 240.7 Longitude of periastron (degrees)
Start-Year: 1994.0 Year
End-Year: 2056.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST1658
Position: 121526.96-310538.2 Epoch-2000 right ascension and declination
WDS-ID: 12155-3106 WDS designation
Discoverer Code: RST1658 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 106549 HD catalog number
Hipparcos number: 59780 Hipparcos catalog number
V1: 10.17 Magnitude of the primary
V2: 11.32 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 RST1658


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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:10:06 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>
    956 
    957 # Smooth curve if necessary
=>  958 xa_smooth, ya_smooth = Q_get_smoothed_orbit(xa_list, ya_list)
    959 plt.plot(xa_smooth, ya_smooth, label=f'Orbit of {wds}', color='#528B8B')
    960 
xa_smooth undefined, ya_smooth undefined, Q_get_smoothed_orbit = <function Q_get_smoothed_orbit>, xa_list = [0.5005636821734006, 0.5427424593106165, 0.5776565762419282, 0.6053992994808955, 0.6261615648199051, 0.6402036325063796, 0.6478324538953236, 0.649384230989688, 0.6452113907949705, 0.6356731477314822, 0.6211288899541035, 0.6019337354365316, 0.578435724348962, 0.5509742269296882, 0.5198792429462102, 0.48547134816554394, 0.4480621061471944, 0.4079548124628191, 0.36544547572191877, 0.3208239677680174, ...], ya_list = [-0.049596412977974395, 0.002986065371842682, 0.055537472870903534, 0.10740705915718736, 0.15804482197896708, 0.2069921349870595, 0.25387091898982256, 0.2983726517589861, 0.34024798479019147, 0.37929736435349604, 0.4153628121072729, 0.4483208741624935, 0.47807666683695005, 0.504558909173657, 0.5277158200390183, 0.5475117601479028, 0.563924509590183, 0.5769430850386844, 0.5865660153120775, 0.592800008035301, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.5005636821734006, 0.5427424593106165, 0.5776565762419282, 0.6053992994808955, 0.6261615648199051, 0.6402036325063796, 0.6478324538953236, 0.649384230989688, 0.6452113907949705, 0.6356731477314822, 0.6211288899541035, 0.6019337354365316, 0.578435724348962, 0.5509742269296882, 0.5198792429462102, 0.48547134816554394, 0.4480621061471944, 0.4079548124628191, 0.36544547572191877, 0.3208239677680174, ...], y_list=[-0.049596412977974395, 0.002986065371842682, 0.055537472870903534, 0.10740705915718736, 0.15804482197896708, 0.2069921349870595, 0.25387091898982256, 0.2983726517589861, 0.34024798479019147, 0.37929736435349604, 0.4153628121072729, 0.4483208741624935, 0.47807666683695005, 0.504558909173657, 0.5277158200390183, 0.5475117601479028, 0.563924509590183, 0.5769430850386844, 0.5865660153120775, 0.592800008035301, ...])
    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([-0.58675282, -0.59101004, -0.58831794, -0...1, -0.53763594, -0.55952695, -0.57607808]), y = array([-0.01627897, -0.06484176, -0.11263516, -0...2, 0.12854485, 0.08088988, 0.03246818]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.58675282, -0.59101004, -0.58831794, -0...1, -0.53763594, -0.55952695, -0.57607808]), array([-0.01627897, -0.06484176, -0.11263516, -0...2, 0.12854485, 0.08088988, 0.03246818])], 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([-0.58675282, -0.59101004, -0.58831794, -0...1, -0.53763594, -0.55952695, -0.57607808]), array([-0.01627897, -0.06484176, -0.11263516, -0...2, 0.12854485, 0.08088988, 0.03246818])], 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([[-0.58675282, -0.59101004, -0.58831794, -... 0.12854485, 0.08088988, -0.01627897]]), w=array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u=array([0. , 0.01408683, 0.0279194 , 0.041...8833, 0.95568601, 0.97084012, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=69, 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([[-0.58675282, -0.59101004, -0.58831794, -... 0.12854485, 0.08088988, -0.01627897]]), w = array([1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1... 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.]), u = array([0. , 0.01408683, 0.0279194 , 0.041...8833, 0.95568601, 0.97084012, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 69, 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>