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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 19:28:09

Orbital Elements for HDS3080AA,AB

WDS:	HDS3080AA,AB	WDS ID/Discoverer
P:	68.000	Orbital period (years)
a:	1.5	Semi-major axis (arcseconds)
i:	153.0	Inclination (degrees)
Ω:	64.0	Longitude of ascending node (degrees)
T:	1945.000	Epoch of periastron passage (year)
e:	0.22	Eccentricity
ω:	184.0	Longitude of periastron (degrees)
Start-Year:	1991.0	Year
End-Year:	2059.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS3080AA,AB

Position:	213800.38+274325.4	Epoch-2000 right ascension and declination
WDS-ID:	21379+2743	WDS designation
Discoverer Code:	HDS3080AA,AB	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	106811	Hipparcos catalog number
V1:	10.17	Magnitude of the primary
V2:	11.75	Magnitude of the secondary
Equinox:	2000	Equinox
Date:		Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for HDS3080AA,AB

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:28:09 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 = [-0.5327987676105119, -0.4135675477451706, -0.2918026413996729, -0.16817320323774157, -0.04342121410163152, 0.08162964785048024, 0.20606480694738552, 0.3288696441236638, 0.4489210107692475, 0.5649803085397289, 0.6756894311551258, 0.7795713403703708, 0.8750375814357507, 0.9604055570898948, 1.0339287256304512, 1.0938428288978737, 1.138430464515685, 1.1661044419673838, 1.1755071766730847, 1.1656190195019551, ...], y_list = [1.5063545867720411, 1.508073415929503, 1.5005345758399686, 1.483378093168302, 1.4562622671566643, 1.4188718365911848, 1.3709285738692598, 1.3122048070822536, 1.2425404054153717, 1.1618637494565074, 1.0702171077003682, 0.9677865990322895, 0.8549364678066852, 0.7322466546215958, 0.6005515469106354, 0.46097633088499823, 0.31496565752213457, 0.16429770529625737, 0.011075759048871191, -0.14231007092367878, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.5327987676105119, -0.4135675477451706, -0.2918026413996729, -0.16817320323774157, -0.04342121410163152, 0.08162964785048024, 0.20606480694738552, 0.3288696441236638, 0.4489210107692475, 0.5649803085397289, 0.6756894311551258, 0.7795713403703708, 0.8750375814357507, 0.9604055570898948, 1.0339287256304512, 1.0938428288978737, 1.138430464515685, 1.1661044419673838, 1.1755071766730847, 1.1656190195019551, ...], y_list=[1.5063545867720411, 1.508073415929503, 1.5005345758399686, 1.483378093168302, 1.4562622671566643, 1.4188718365911848, 1.3709285738692598, 1.3122048070822536, 1.2425404054153717, 1.1618637494565074, 1.0702171077003682, 0.9677865990322895, 0.8549364678066852, 0.7322466546215958, 0.6005515469106354, 0.46097633088499823, 0.31496565752213457, 0.16429770529625737, 0.011075759048871191, -0.14231007092367878, ...])

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([-1.68351265, -1.64426012, -1.59565902, -1...74917134, -1.74619463, -1.73435636, -1.7135068 ]), y = array([-0.08975606, -0.19489927, -0.29893072, -0...33015312, 0.22637085, 0.12144172, 0.01588388]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.68351265, -1.64426012, -1.59565902, -1...74917134, -1.74619463, -1.73435636, -1.7135068 ]), array([-0.08975606, -0.19489927, -0.29893072, -0...33015312, 0.22637085, 0.12144172, 0.01588388])], 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([-1.68351265, -1.64426012, -1.59565902, -1...74917134, -1.74619463, -1.73435636, -1.7135068 ]), array([-0.08975606, -0.19489927, -0.29893072, -0...33015312, 0.22637085, 0.12144172, 0.01588388])], 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([[-1.68351265, -1.64426012, -1.59565902, -...3015312, 0.22637085, 0.12144172, -0.08975606]]), 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. , 0.01273127, 0.02575669, 0.039... 0.95160159, 0.96337926, 0.97535771, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=75, 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([[-1.68351265, -1.64426012, -1.59565902, -...3015312, 0.22637085, 0.12144172, -0.08975606]]), 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. , 0.01273127, 0.02575669, 0.039... 0.95160159, 0.96337926, 0.97535771, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 75, 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>