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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:37:56

Orbital Elements for B1586

WDS:	B1586	WDS ID/Discoverer
P:	250.000	Orbital period (years)
a:	0.356	Semi-major axis (arcseconds)
i:	74.3	Inclination (degrees)
Ω:	266.4	Longitude of ascending node (degrees)
T:	2018.894	Epoch of periastron passage (year)
e:	0.871	Eccentricity
ω:	114.2	Longitude of periastron (degrees)
Start-Year:	1900.0	Year
End-Year:	2150.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B1586

Position:	080828.45-523701.9	Epoch-2000 right ascension and declination
WDS-ID:	08085-5237	WDS designation
Discoverer Code:	B1586	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	68117	HD catalog number
Hipparcos number:	39850	Hipparcos catalog number
V1:	7.52	Magnitude of the primary
V2:	8.93	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2022	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B1586

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:37:56 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 = [0.27485740468553016, 0.2768406548298246, 0.2787970352606296, 0.2807263039539668, 0.2826282138530648, 0.2845025122228486, 0.2863489410553373, 0.28816723654480386, 0.28995712896710113, 0.29171834247792067, 0.29345059490359887, 0.2951535975240474, 0.29682705484734706, 0.29847066437554187, 0.30008411636111426, 0.3016670935536245, 0.3032192709359325, 0.3047403154494176, 0.3062298857075536, 0.30768763169716307, ...], y_list = [-0.18012884630071171, -0.17988799188441557, -0.17962967787924553, -0.17935389577638047, -0.17906063431425046, -0.17874987953876081, -0.17842161470024076, -0.17807582028712698, -0.17771247399580845, -0.17733155070897266, -0.17693302247140957, -0.1765168584632211, -0.17608302497037637, -0.175631485352547, -0.17516220000815166, -0.17467512633652954, -0.17417021869715957, -0.1736474283658308, -0.17310670348766385, -0.1725479890268752, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.27485740468553016, 0.2768406548298246, 0.2787970352606296, 0.2807263039539668, 0.2826282138530648, 0.2845025122228486, 0.2863489410553373, 0.28816723654480386, 0.28995712896710113, 0.29171834247792067, 0.29345059490359887, 0.2951535975240474, 0.29682705484734706, 0.29847066437554187, 0.30008411636111426, 0.3016670935536245, 0.3032192709359325, 0.3047403154494176, 0.3062298857075536, 0.30768763169716307, ...], y_list=[-0.18012884630071171, -0.17988799188441557, -0.17962967787924553, -0.17935389577638047, -0.17906063431425046, -0.17874987953876081, -0.17842161470024076, -0.17807582028712698, -0.17771247399580845, -0.17733155070897266, -0.17693302247140957, -0.1765168584632211, -0.17608302497037637, -0.175631485352547, -0.17516220000815166, -0.17467512633652954, -0.17417021869715957, -0.1736474283658308, -0.17310670348766385, -0.1725479890268752, ...])

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([-0.07641721, -0.08319019, -0.08731113, -0...8, -0.02135791, -0.04789117, -0.06547832]), y = array([-0.00282968, -0.0085842 , -0.01407841, -0...3, 0.01228112, 0.00854376, 0.00304916]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.07641721, -0.08319019, -0.08731113, -0...8, -0.02135791, -0.04789117, -0.06547832]), array([-0.00282968, -0.0085842 , -0.01407841, -0...3, 0.01228112, 0.00854376, 0.00304916])], 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([-0.07641721, -0.08319019, -0.08731113, -0...8, -0.02135791, -0.04789117, -0.06547832]), array([-0.00282968, -0.0085842 , -0.01407841, -0...3, 0.01228112, 0.00854376, 0.00304916])], 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([[-0.07641721, -0.08319019, -0.08731113, -... 0.01228112, 0.00854376, -0.00282968]]), 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. , 0.0089665 , 0.01589548, 0.021...7449, 0.94198395, 0.96901729, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=257, 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([[-0.07641721, -0.08319019, -0.08731113, -... 0.01228112, 0.00854376, -0.00282968]]), 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. , 0.0089665 , 0.01589548, 0.021...7449, 0.94198395, 0.96901729, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 257, 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>