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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:36:04

Orbital Elements for HU494
WDS: HU494 WDS ID/Discoverer
P: 550.000 Orbital period (years)
a: 0.5 Semi-major axis (arcseconds)
i: 29.0 Inclination (degrees)
Ω: 99.0 Longitude of ascending node (degrees)
T: 1942.000 Epoch of periastron passage (year)
e: 0.823 Eccentricity
ω: 90.0 Longitude of periastron (degrees)
Start-Year: 1750.0 Year
End-Year: 2300.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU494
Position: 224034.73+063142.9 Epoch-2000 right ascension and declination
WDS-ID: 22406+0632 WDS designation
Discoverer Code: HU494 Discover designation and components
ADS number: 16165 Aitken Double Star catalog
HD number: 214809 HD catalog number
Hipparcos number: 111947 Hipparcos catalog number
V1: 9.95 Magnitude of the primary
V2: 9.94 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2008 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HU494
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:36:04 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 = [-0.2573998034256186, -0.2587810385112164, -0.2601554807850723, -0.26152305995803204, -0.2628837048857015, -0.2642373435500872, -0.26558390304079627, -0.2669233095357771, -0.2682554882815991, -0.2695803635732413, -0.27089785873337907, -0.2722078960911658, -0.2735103969604669, -0.27480528161755735, -0.2760924692782416, -0.27737187807439506, -0.27864342502989187, -0.2799070260359132, -0.28116259582560543, -0.2824100479480717, ...], y_list = [0.7053615630404031, 0.7036341383360816, 0.701888243872944, 0.7001238331812234, 0.6983408589323223, 0.6965392729282173, 0.6947190260906067, 0.6928800684497936, 0.6910223491332965, 0.6891458163541846, 0.6872504173991294, 0.6853360986161638, 0.6834028054021449, 0.6814504821899093, 0.6794790724351184, 0.6774885186027785, 0.6754787621534364, 0.6734497435290323, 0.6714014021384107, 0.6693336763424736, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.2573998034256186, -0.2587810385112164, -0.2601554807850723, -0.26152305995803204, -0.2628837048857015, -0.2642373435500872, -0.26558390304079627, -0.2669233095357771, -0.2682554882815991, -0.2695803635732413, -0.27089785873337907, -0.2722078960911658, -0.2735103969604669, -0.27480528161755735, -0.2760924692782416, -0.27737187807439506, -0.27864342502989187, -0.2799070260359132, -0.28116259582560543, -0.2824100479480717, ...], y_list=[0.7053615630404031, 0.7036341383360816, 0.701888243872944, 0.7001238331812234, 0.6983408589323223, 0.6965392729282173, 0.6947190260906067, 0.6928800684497936, 0.6910223491332965, 0.6891458163541846, 0.6872504173991294, 0.6853360986161638, 0.6834028054021449, 0.6814504821899093, 0.6794790724351184, 0.6774885186027785, 0.6754787621534364, 0.6734497435290323, 0.6714014021384107, 0.6693336763424736, ...])
    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([-0.18577512, -0.1776241 , -0.16896041, -0...6, -0.20756993, -0.2007109 , -0.19345762]), y = array([-0.00248074, -0.01000627, -0.01750239, -0...9, 0.02006975, 0.01257283, 0.00505148]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.18577512, -0.1776241 , -0.16896041, -0...6, -0.20756993, -0.2007109 , -0.19345762]), array([-0.00248074, -0.01000627, -0.01750239, -0...9, 0.02006975, 0.01257283, 0.00505148])], 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([-0.18577512, -0.1776241 , -0.16896041, -0...6, -0.20756993, -0.2007109 , -0.19345762]), array([-0.00248074, -0.01000627, -0.01750239, -0...9, 0.02006975, 0.01257283, 0.00505148])], 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([[-0.18577512, -0.1776241 , -0.16896041, .... 0.02006975, 0.01257283, -0.00248074]]), 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. , 0.0048409 , 0.00984006, 0.015...956 , 0.98631268, 0.99074663, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=557, 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([[-0.18577512, -0.1776241 , -0.16896041, .... 0.02006975, 0.01257283, -0.00248074]]), 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. , 0.0048409 , 0.00984006, 0.015...956 , 0.98631268, 0.99074663, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 557, 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>