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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:01:48

Orbital Elements for HDS595
WDS: HDS595 WDS ID/Discoverer
P: 120.000 Orbital period (years)
a: 0.261 Semi-major axis (arcseconds)
i: 64.6 Inclination (degrees)
Ω: 122.2 Longitude of ascending node (degrees)
T: 2028.270 Epoch of periastron passage (year)
e: 0.172 Eccentricity
ω: 110.0 Longitude of periastron (degrees)
Start-Year: 1965.0 Year
End-Year: 2085.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS595
Position: 043425.68-661135.0 Epoch-2000 right ascension and declination
WDS-ID: 04344-6612 WDS designation
Discoverer Code: HDS595 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 29547 HD catalog number
Hipparcos number: 21305 Hipparcos catalog number
V1: 9.23 Magnitude of the primary
V2: 9.98 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS595
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:01:48 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 = [-0.12597851386248624, -0.13488656151912298, -0.14356439761227716, -0.15199758986622017, -0.16017194041899613, -0.1680734717113015, -0.17568841372811117, -0.1830031926615202, -0.19000442107188062, -0.19667888963466673, -0.20301356057264253, -0.2089955628868035, -0.2146121895153164, -0.2198508966866105, -0.22469930500736127, -0.2291452038529971, -0.23317655762767578, -0.2367815152453709, -0.23994842269084662, -0.24266583901814143, ...], y_list = [0.07153914700206743, 0.06463777172449824, 0.05762607250048301, 0.050516171064781304, 0.04332024331007768, 0.03605053033285775, 0.028719349926749092, 0.021339108465648113, 0.01392231312010156, 0.006481584349989089, -0.0009703313855340744, -0.008420548763648204, -0.015856030647470865, -0.023263575300381, -0.030629802958506817, -0.037941143797526236, -0.04518382511791975, -0.05234385941654883, -0.05940703293564515, -0.06635889494733521, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.12597851386248624, -0.13488656151912298, -0.14356439761227716, -0.15199758986622017, -0.16017194041899613, -0.1680734717113015, -0.17568841372811117, -0.1830031926615202, -0.19000442107188062, -0.19667888963466673, -0.20301356057264253, -0.2089955628868035, -0.2146121895153164, -0.2198508966866105, -0.22469930500736127, -0.2291452038529971, -0.23317655762767578, -0.2367815152453709, -0.23994842269084662, -0.24266583901814143, ...], y_list=[0.07153914700206743, 0.06463777172449824, 0.05762607250048301, 0.050516171064781304, 0.04332024331007768, 0.03605053033285775, 0.028719349926749092, 0.021339108465648113, 0.01392231312010156, 0.006481584349989089, -0.0009703313855340744, -0.008420548763648204, -0.015856030647470865, -0.023263575300381, -0.030629802958506817, -0.037941143797526236, -0.04518382511791975, -0.05234385941654883, -0.05940703293564515, -0.06635889494733521, ...])
    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([-0.20301356, -0.20899556, -0.21461219, -0...1, -0.18300319, -0.19000442, -0.19667889]), y = array([-0.00097033, -0.00842055, -0.01585603, -0...5, 0.02133911, 0.01392231, 0.00648158]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.20301356, -0.20899556, -0.21461219, -0...1, -0.18300319, -0.19000442, -0.19667889]), array([-0.00097033, -0.00842055, -0.01585603, -0...5, 0.02133911, 0.01392231, 0.00648158])], 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([-0.20301356, -0.20899556, -0.21461219, -0...1, -0.18300319, -0.19000442, -0.19667889]), array([-0.00097033, -0.00842055, -0.01585603, -0...5, 0.02133911, 0.01392231, 0.00648158])], 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([[-0.20301356, -0.20899556, -0.21461219, -... 0.02133911, 0.01392231, -0.00097033]]), 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. , 0.00792388, 0.0156519 , 0.023...2435, 0.97514193, 0.98360051, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=127, 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([[-0.20301356, -0.20899556, -0.21461219, -... 0.02133911, 0.01392231, -0.00097033]]), 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. , 0.00792388, 0.0156519 , 0.023...2435, 0.97514193, 0.98360051, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 127, 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>