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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 16:37:16

Orbital Elements for HU1350

WDS:	HU1350	WDS ID/Discoverer
P:	250.000	Orbital period (years)
a:	0.79	Semi-major axis (arcseconds)
i:	124.7	Inclination (degrees)
Ω:	7.6	Longitude of ascending node (degrees)
T:	1903.000	Epoch of periastron passage (year)
e:	0.434	Eccentricity
ω:	135.9	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 HU1350

Position:	023937.90-542500.8	Epoch-2000 right ascension and declination
WDS-ID:	02396-5425	WDS designation
Discoverer Code:	HU1350	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	16795	HD catalog number
Hipparcos number:	12397	Hipparcos catalog number
V1:	9.52	Magnitude of the primary
V2:	9.94	Magnitude of the secondary
Equinox:	2000	Equinox
Date:	1991	Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for HU1350

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 16:37:16 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 = [0.24419594058255983, 0.23628913659262232, 0.22756716655775153, 0.2180547817549682, 0.20778328468960042, 0.19679003906291917, 0.18511779939022374, 0.17281389425095298, 0.1599293012235798, 0.14651766662479473, 0.13263431056957226, 0.11833526502963777, 0.10367638047424725, 0.08871252949979873, 0.07349692609162468, 0.05808056984766373, 0.042511816260664054, 0.026836067516156446, 0.011095573427528614, -0.0046706709400031144, ...], y_list = [-0.22009886377357063, -0.24589650521936374, -0.27084566012519756, -0.29485398745306957, -0.31783584209482935, -0.3397137749001419, -0.36041978883552916, -0.3798962938763681, -0.39809673205863993, -0.4149858503744065, -0.43053964373752185, -0.44474499214932783, -0.4575990401889087, -0.4691083736458589, -0.47928805205203956, -0.48816055446711176, -0.4957546905944197, -0.5021045214701789, -0.5072483248584617, -0.511227631176826, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.24419594058255983, 0.23628913659262232, 0.22756716655775153, 0.2180547817549682, 0.20778328468960042, 0.19679003906291917, 0.18511779939022374, 0.17281389425095298, 0.1599293012235798, 0.14651766662479473, 0.13263431056957226, 0.11833526502963777, 0.10367638047424725, 0.08871252949979873, 0.07349692609162468, 0.05808056984766373, 0.042511816260664054, 0.026836067516156446, 0.011095573427528614, -0.0046706709400031144, ...], y_list=[-0.22009886377357063, -0.24589650521936374, -0.27084566012519756, -0.29485398745306957, -0.31783584209482935, -0.3397137749001419, -0.36041978883552916, -0.3798962938763681, -0.39809673205863993, -0.4149858503744065, -0.43053964373752185, -0.44474499214932783, -0.4575990401889087, -0.4691083736458589, -0.47928805205203956, -0.48816055446711176, -0.4957546905944197, -0.5021045214701789, -0.5072483248584617, -0.511227631176826, ...])

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([-5.41399134e-01, -5.36243959e-01, -5.3088....55680280e-01, -5.51115151e-01, -5.46355478e-01]), y = array([-0.00711531, -0.02190547, -0.03668741, -0...4, 0.03724968, 0.02246754, 0.00767749]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-5.41399134e-01, -5.36243959e-01, -5.3088....55680280e-01, -5.51115151e-01, -5.46355478e-01]), array([-0.00711531, -0.02190547, -0.03668741, -0...4, 0.03724968, 0.02246754, 0.00767749])], 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([-5.41399134e-01, -5.36243959e-01, -5.3088....55680280e-01, -5.51115151e-01, -5.46355478e-01]), array([-0.00711531, -0.02190547, -0.03668741, -0...4, 0.03724968, 0.02246754, 0.00767749])], 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([[-5.41399134e-01, -5.36243959e-01, -5.308...e-02, 2.24675450e-02, -7.11530660e-03]]), 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. , 0.00414683, 0.00830944, 0.012...8208, 0.98766011, 0.99175615, 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([[-5.41399134e-01, -5.36243959e-01, -5.308...e-02, 2.24675450e-02, -7.11530660e-03]]), 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. , 0.00414683, 0.00830944, 0.012...8208, 0.98766011, 0.99175615, 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>