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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:08:24

Orbital Elements for KUI95AB

WDS:	KUI95AB	WDS ID/Discoverer
P:	228.000	Orbital period (years)
a:	2.8	Semi-major axis (arcseconds)
i:	78.0	Inclination (degrees)
Ω:	67.0	Longitude of ascending node (degrees)
T:	1961.000	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	179.0	Longitude of periastron (degrees)
Start-Year:	1911.0	Year
End-Year:	2139.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for KUI95AB

Position:	194545.49+270728.7	Epoch-2000 right ascension and declination
WDS-ID:	19458+2710	WDS designation
Discoverer Code:	KUI95AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	97237	Hipparcos catalog number
V1:	13.6	Magnitude of the primary
V2:	14.6	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for KUI95AB

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:08:24 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 = [-2.240412772834403, -2.1818619676513444, -2.1221619419802895, -2.061308131106604, -1.9992964973227294, -1.9361236225053169, -1.8717868133608195, -1.8062842211118162, -1.7396149776552843, -1.6717793505214968, -1.6027789193039645, -1.532616776622534, -1.4612977571302286, -1.3888286985867941, -1.3152187396051775, -1.2404796593387835, -1.1646262651237647, -1.087676834926874, -1.0096536223781047, -0.9305834331861389, ...], y_list = [0.43437413678024384, 0.40566001904870236, 0.37673228287601906, 0.3475997768582864, 0.31827208478089114, 0.2887595963671734, 0.25907358540661946, 0.22922629610442796, 0.1992310385938745, 0.16910229466339327, 0.1388558348725316, 0.10850884836524712, 0.07808008683567338, 0.04759002426022721, 0.017061034179544597, -0.013482413507825473, -0.044013534094588296, -0.07450298562890252, -0.10491859999337608, -0.13522508484980308, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-2.240412772834403, -2.1818619676513444, -2.1221619419802895, -2.061308131106604, -1.9992964973227294, -1.9361236225053169, -1.8717868133608195, -1.8062842211118162, -1.7396149776552843, -1.6717793505214968, -1.6027789193039645, -1.532616776622534, -1.4612977571302286, -1.3888286985867941, -1.3152187396051775, -1.2404796593387835, -1.1646262651237647, -1.087676834926874, -1.0096536223781047, -0.9305834331861389, ...], y_list=[0.43437413678024384, 0.40566001904870236, 0.37673228287601906, 0.3475997768582864, 0.31827208478089114, 0.2887595963671734, 0.25907358540661946, 0.22922629610442796, 0.1992310385938745, 0.16910229466339327, 0.1388558348725316, 0.10850884836524712, 0.07808008683567338, 0.04759002426022721, 0.017061034179544597, -0.013482413507825473, -0.044013534094588296, -0.07450298562890252, -0.10491859999337608, -0.13522508484980308, ...])

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([-1.24047966, -1.16462627, -1.08767683, -1...53261678, -1.46129776, -1.3888287 , -1.31521874]), y = array([-0.01348241, -0.04401353, -0.07450299, -0...10850885, 0.07808009, 0.04759002, 0.01706103]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.24047966, -1.16462627, -1.08767683, -1...53261678, -1.46129776, -1.3888287 , -1.31521874]), array([-0.01348241, -0.04401353, -0.07450299, -0...10850885, 0.07808009, 0.04759002, 0.01706103])], 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([-1.24047966, -1.16462627, -1.08767683, -1...53261678, -1.46129776, -1.3888287 , -1.31521874]), array([-0.01348241, -0.04401353, -0.07450299, -0...10850885, 0.07808009, 0.04759002, 0.01706103])], 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([[-1.24047966, -1.16462627, -1.08767683, -...0850885, 0.07808009, 0.04759002, -0.01348241]]), 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. , 0.00700328, 0.01409243, 0.021... 0.97288443, 0.97952558, 0.98625947, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=235, 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([[-1.24047966, -1.16462627, -1.08767683, -...0850885, 0.07808009, 0.04759002, -0.01348241]]), 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. , 0.00700328, 0.01409243, 0.021... 0.97288443, 0.97952558, 0.98625947, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 235, 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>