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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:33:58

Orbital Elements for RST792

WDS:	RST792	WDS ID/Discoverer
P:	174.000	Orbital period (years)
a:	0.396	Semi-major axis (arcseconds)
i:	76.0	Inclination (degrees)
Ω:	61.5	Longitude of ascending node (degrees)
T:	2018.450	Epoch of periastron passage (year)
e:	0.967	Eccentricity
ω:	257.6	Longitude of periastron (degrees)
Start-Year:	1938.0	Year
End-Year:	2112.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for RST792

Position:	154542.08-652907.6	Epoch-2000 right ascension and declination
WDS-ID:	15457-6529	WDS designation
Discoverer Code:	RST792	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	140081	HD catalog number
Hipparcos number:	77189	Hipparcos catalog number
V1:	8.96	Magnitude of the primary
V2:	9.72	Magnitude of the secondary
Equinox:		Equinox
Date:	2021	Date of last observation
Orbit grade:	4	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for RST792

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:33:58 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 = [-0.2238495225515386, -0.22202790071561437, -0.22016769173442832, -0.21826906412144206, -0.21633217551961695, -0.214357172878353, -0.21234419261512916, -0.21029336076238722, -0.20820479310015344, -0.2060785952748628, -0.2039148629048068, -0.20171368167260967, -0.199475127405089, -0.1971992661408532, -0.19488615418596217, -0.19253583815795405, -0.1901483550185553, -0.18772373209535925, -0.18526198709277686, -0.1827631280925718, ...], y_list = [-0.08782861382937997, -0.08867303559912441, -0.08950204634378338, -0.09031543903969068, -0.09111299986753076, -0.0918945078865652, -0.09265973469089007, -0.0934084440462688, -0.09414039150596668, -0.09485532400387434, -0.09555297942306468, -0.09623308613775264, -0.09689536252645642, -0.09753951645394165, -0.09816524471930621, -0.09877223246731281, -0.09936015255977636, -0.0999286649035116, -0.10047741573097731, -0.10100603682935241, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.2238495225515386, -0.22202790071561437, -0.22016769173442832, -0.21826906412144206, -0.21633217551961695, -0.214357172878353, -0.21234419261512916, -0.21029336076238722, -0.20820479310015344, -0.2060785952748628, -0.2039148629048068, -0.20171368167260967, -0.199475127405089, -0.1971992661408532, -0.19488615418596217, -0.19253583815795405, -0.1901483550185553, -0.18772373209535925, -0.18526198709277686, -0.1827631280925718, ...], y_list=[-0.08782861382937997, -0.08867303559912441, -0.08950204634378338, -0.09031543903969068, -0.09111299986753076, -0.0918945078865652, -0.09265973469089007, -0.0934084440462688, -0.09414039150596668, -0.09485532400387434, -0.09555297942306468, -0.09623308613775264, -0.09689536252645642, -0.09753951645394165, -0.09816524471930621, -0.09877223246731281, -0.09936015255977636, -0.0999286649035116, -0.10047741573097731, -0.10100603682935241, ...])

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([-0.22665498, -0.22933181, -0.23186194, -0...21430892, -0.2176608 , -0.22082871, -0.22382353]), y = array([-0.00067691, -0.00222462, -0.00377093, -0...00550662, 0.00396438, 0.00241878, 0.00087126]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.22665498, -0.22933181, -0.23186194, -0...21430892, -0.2176608 , -0.22082871, -0.22382353]), array([-0.00067691, -0.00222462, -0.00377093, -0...00550662, 0.00396438, 0.00241878, 0.00087126])], 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([-0.22665498, -0.22933181, -0.23186194, -0...21430892, -0.2176608 , -0.22082871, -0.22382353]), array([-0.00067691, -0.00222462, -0.00377093, -0...00550662, 0.00396438, 0.00241878, 0.00087126])], 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([[-0.22665498, -0.22933181, -0.23186194, -...0550662, 0.00396438, 0.00241878, -0.00067691]]), 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. , 0.00448754, 0.008791 , 0.012... 0.97995433, 0.98530916, 0.99042481, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=181, 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([[-0.22665498, -0.22933181, -0.23186194, -...0550662, 0.00396438, 0.00241878, -0.00067691]]), 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. , 0.00448754, 0.008791 , 0.012... 0.97995433, 0.98530916, 0.99042481, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 181, 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>