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

Double Star Calculator - Orbit

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

Orbital Elements for B193

WDS:	B193	WDS ID/Discoverer
P:	450.000	Orbital period (years)
a:	0.542	Semi-major axis (arcseconds)
i:	107.6	Inclination (degrees)
Ω:	70.2	Longitude of ascending node (degrees)
T:	1952.520	Epoch of periastron passage (year)
e:	0.5	Eccentricity
ω:	26.2	Longitude of periastron (degrees)
Start-Year:	1800.0	Year
End-Year:	2250.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for B193

Position:	100842.16-253757.4	Epoch-2000 right ascension and declination
WDS-ID:	10087-2538	WDS designation
Discoverer Code:	B193	Discover designation and components
ADS number:	7659	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	10.4	Magnitude of the primary
V2:	10.9	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	2023	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for B193

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:56:11 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>

956

957 # Smooth curve if necessary

=> 958 xa_smooth, ya_smooth = Q_get_smoothed_orbit(xa_list, ya_list)

959 plt.plot(xa_smooth, ya_smooth, label=f'Orbit of {wds}', color='#528B8B')

960

xa_smooth undefined, ya_smooth undefined, Q_get_smoothed_orbit = <function Q_get_smoothed_orbit>, xa_list = [-0.39770268962807775, -0.3930519555635769, -0.38837216042022443, -0.38366344411059383, -0.37892594879292074, -0.3741598189737075, -0.3693652016139085, -0.36454224623882814, -0.3596911050519237, -0.35481193305265424, -0.3499048881585785, -0.3449701313318685, -0.3400078263216175, -0.3350181412845475, -0.3300012467932857, -0.3249573173475279, -0.3198865311975209, -0.31478907050155125, -0.30966512148945313, -0.30451487463238075, ...], ya_list = [0.32724681756474305, 0.3261206625184652, 0.32497039485184936, 0.3237959271513542, 0.32259717091167417, 0.3213740365298361, 0.32012643329957924, 0.3188542694060449, 0.3175574519208067, 0.31623588679726905, 0.31488947886647095, 0.3135181318333269, 0.3121217481632497, 0.31070022949818077, 0.3092534760547547, 0.30778138700535634, 0.30628386038536937, 0.3047607930929292, 0.30321208088944107, 0.3016376184009184, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.39770268962807775, -0.3930519555635769, -0.38837216042022443, -0.38366344411059383, -0.37892594879292074, -0.3741598189737075, -0.3693652016139085, -0.36454224623882814, -0.3596911050519237, -0.35481193305265424, -0.3499048881585785, -0.3449701313318685, -0.3400078263216175, -0.3350181412845475, -0.3300012467932857, -0.3249573173475279, -0.3198865311975209, -0.31478907050155125, -0.30966512148945313, -0.30451487463238075, ...], y_list=[0.32724681756474305, 0.3261206625184652, 0.32497039485184936, 0.3237959271513542, 0.32259717091167417, 0.3213740365298361, 0.32012643329957924, 0.3188542694060449, 0.3175574519208067, 0.31623588679726905, 0.31488947886647095, 0.3135181318333269, 0.3121217481632497, 0.31070022949818077, 0.3092534760547547, 0.30778138700535634, 0.30628386038536937, 0.3047607930929292, 0.30321208088944107, 0.3016376184009184, ...])

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([-0.3134655 , -0.3054525 , -0.29733969, -0...1, -0.33690792, -0.32919293, -0.32137889]), y = array([-0.00089882, -0.00430211, -0.007704 , -0...6, 0.00930863, 0.00590759, 0.00250477]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.3134655 , -0.3054525 , -0.29733969, -0...1, -0.33690792, -0.32919293, -0.32137889]), array([-0.00089882, -0.00430211, -0.007704 , -0...6, 0.00930863, 0.00590759, 0.00250477])], 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([-0.3134655 , -0.3054525 , -0.29733969, -0...1, -0.33690792, -0.32919293, -0.32137889]), array([-0.00089882, -0.00430211, -0.007704 , -0...6, 0.00930863, 0.00590759, 0.00250477])], 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([[-0.3134655 , -0.3054525 , -0.29733969, -... 0.00930863, 0.00590759, -0.00089882]]), 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. , 0.00379576, 0.00763137, 0.011...1574, 0.98885204, 0.99252816, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=457, 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([[-0.3134655 , -0.3054525 , -0.29733969, -... 0.00930863, 0.00590759, -0.00089882]]), 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. , 0.00379576, 0.00763137, 0.011...1574, 0.98885204, 0.99252816, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 457, 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>