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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:32:42

Orbital Elements for HU1167AB

WDS:	HU1167AB	WDS ID/Discoverer
P:	834.000	Orbital period (years)
a:	1.249	Semi-major axis (arcseconds)
i:	97.0	Inclination (degrees)
Ω:	80.5	Longitude of ascending node (degrees)
T:	2021.800	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	1608.0	Year
End-Year:	2442.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU1167AB

Position:	153812.91+361448.6	Epoch-2000 right ascension and declination
WDS-ID:	15382+3615	WDS designation
Discoverer Code:	HU1167AB	Discover designation and components
ADS number:	9731	Aitken Double Star catalog
HD number:	139691	HD catalog number
Hipparcos number:	76563	Hipparcos catalog number
V1:	8.07	Magnitude of the primary
V2:	9.87	Magnitude of the secondary
Equinox:		Equinox
Date:	1994	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HU1167AB

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:32:42 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 = [1.2309071476037057, 1.2304592876418599, 1.2299415895133619, 1.2293540826016212, 1.2286968002522392, 1.2279697797711184, 1.227173062422345, 1.2263066934258455, 1.225370721954821, 1.2243652011329573, 1.223290188031407, 1.2221457436655532, 1.220931932991544, 1.2196488249026076, 1.2182964922251411, 1.2168750117145768, 1.2153844640510265, 1.213824933834702, 1.2121965095811131, 1.2104992837160435, ...], y_list = [-0.20970349631971524, -0.21079079679484322, -0.21186613324731468, -0.21292944464339436, -0.213980670631863, -0.21501975154744218, -0.2160466284141813, -0.21706124294880494, -0.21806353756402044, -0.21905345537178686, -0.2200309401865436, -0.22099593652839958, -0.2219483896262817, -0.22288824542104424, -0.2238154505685365, -0.2247299524426306, -0.22563169913820896, -0.22652063947410958, -0.22739672299603136, -0.2282598999793979, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[1.2309071476037057, 1.2304592876418599, 1.2299415895133619, 1.2293540826016212, 1.2286968002522392, 1.2279697797711184, 1.227173062422345, 1.2263066934258455, 1.225370721954821, 1.2243652011329573, 1.223290188031407, 1.2221457436655532, 1.220931932991544, 1.2196488249026076, 1.2182964922251411, 1.2168750117145768, 1.2153844640510265, 1.213824933834702, 1.2121965095811131, 1.2104992837160435, ...], y_list=[-0.20970349631971524, -0.21079079679484322, -0.21186613324731468, -0.21292944464339436, -0.213980670631863, -0.21501975154744218, -0.2160466284141813, -0.21706124294880494, -0.21806353756402044, -0.21905345537178686, -0.2200309401865436, -0.22099593652839958, -0.2219483896262817, -0.22288824542104424, -0.2238154505685365, -0.2247299524426306, -0.22563169913820896, -0.22652063947410958, -0.22739672299603136, -0.2282598999793979, ...])

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([-0.73921192, -0.73176458, -0.7242757 , -0...76857754, -0.76130054, -0.75398032, -0.74661731]), y = array([-0.00163171, -0.00355285, -0.00547379, -0...0060527 , 0.00413184, 0.00221075, 0.00028953]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.73921192, -0.73176458, -0.7242757 , -0...76857754, -0.76130054, -0.75398032, -0.74661731]), array([-0.00163171, -0.00355285, -0.00547379, -0...0060527 , 0.00413184, 0.00221075, 0.00028953])], 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([-0.73921192, -0.73176458, -0.7242757 , -0...76857754, -0.76130054, -0.75398032, -0.74661731]), array([-0.00163171, -0.00355285, -0.00547379, -0...0060527 , 0.00413184, 0.00221075, 0.00028953])], 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([[-0.73921192, -0.73176458, -0.7242757 , .... 0.00413184, 0.00221075, -0.00163171]]), 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. , 0.00150586, 0.00301959, 0.004... 0.99405684, 0.99553042, 0.9970122 , 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=841, 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([[-0.73921192, -0.73176458, -0.7242757 , .... 0.00413184, 0.00221075, -0.00163171]]), 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. , 0.00150586, 0.00301959, 0.004... 0.99405684, 0.99553042, 0.9970122 , 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 841, 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>