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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 17:16:44

Orbital Elements for STT119

WDS:	STT119	WDS ID/Discoverer
P:	944.000	Orbital period (years)
a:	1.132	Semi-major axis (arcseconds)
i:	66.0	Inclination (degrees)
Ω:	110.3	Longitude of ascending node (degrees)
T:	1782.800	Epoch of periastron passage (year)
e:	0.701	Eccentricity
ω:	105.1	Longitude of periastron (degrees)
Start-Year:	1553.0	Year
End-Year:	2497.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT119

Position:	054754.88+075737.5	Epoch-2000 right ascension and declination
WDS-ID:	05479+0758	WDS designation
Discoverer Code:	STT119	Discover designation and components
ADS number:	4388	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	.	Hipparcos catalog number
V1:	8.08	Magnitude of the primary
V2:	8.93	Magnitude of the secondary
Equinox:		Equinox
Date:		Date of last observation
Orbit grade:	5	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:		Flags

Double Star Orbit for STT119

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:16:44 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 = [-1.1250634960270849, -1.12506901713749, -1.125054995454055, -1.1250213054167058, -1.1249678200801647, -1.1248944110924268, -1.124800948672795, -1.1246873015895043, -1.1245533371368892, -1.1243989211121053, -1.1242239177913875, -1.1240281899058313, -1.1238115986166965, -1.1235740034901978, -1.123315262471803, -1.1230352318599988, -1.1227337662795245, -1.1224107186540584, -1.1220659401783428, -1.1216992802897299, ...], y_list = [0.08815715520110994, 0.08595859662023848, 0.08375854495289382, 0.0815570290493281, 0.07935407815185823, 0.07714972190285808, 0.07494399035295364, 0.07273691396939747, 0.07052852364463903, 0.06831885070510307, 0.06610792692016576, 0.06389578451135085, 0.06168245616173438, 0.05946797502558795, 0.057252374738238763, 0.05503568942617673, 0.052817953717396976, 0.0505992027520046, 0.04837947219306743, 0.04615879823774154, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-1.1250634960270849, -1.12506901713749, -1.125054995454055, -1.1250213054167058, -1.1249678200801647, -1.1248944110924268, -1.124800948672795, -1.1246873015895043, -1.1245533371368892, -1.1243989211121053, -1.1242239177913875, -1.1240281899058313, -1.1238115986166965, -1.1235740034901978, -1.123315262471803, -1.1230352318599988, -1.1227337662795245, -1.1224107186540584, -1.1220659401783428, -1.1216992802897299, ...], y_list=[0.08815715520110994, 0.08595859662023848, 0.08375854495289382, 0.0815570290493281, 0.07935407815185823, 0.07714972190285808, 0.07494399035295364, 0.07273691396939747, 0.07052852364463903, 0.06831885070510307, 0.06610792692016576, 0.06389578451135085, 0.06168245616173438, 0.05946797502558795, 0.057252374738238763, 0.05503568942617673, 0.052817953717396976, 0.0505992027520046, 0.04837947219306743, 0.04615879823774154, ...])

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([-1.10865784, -1.10776774, -1.10685173, -1...11196317, -1.11117471, -1.11036113, -1.10952224]), y = array([-6.22839387e-04, -2.85386846e-03, -5.0848...14e-03, 3.83921090e-03, 1.60820420e-03]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-1.10865784, -1.10776774, -1.10685173, -1...11196317, -1.11117471, -1.11036113, -1.10952224]), array([-6.22839387e-04, -2.85386846e-03, -5.0848...14e-03, 3.83921090e-03, 1.60820420e-03])], 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([-1.10865784, -1.10776774, -1.10685173, -1...11196317, -1.11117471, -1.11036113, -1.10952224]), array([-6.22839387e-04, -2.85386846e-03, -5.0848...14e-03, 3.83921090e-03, 1.60820420e-03])], 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([[-1.10865784e+00, -1.10776774e+00, -1.106...07013014e-03, 3.83921090e-03, -6.22839387e-04]]), 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([0.00000000e+00, 5.82626821e-04, 1.1675961...5550e-01, 9.98841532e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=951, 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([[-1.10865784e+00, -1.10776774e+00, -1.106...07013014e-03, 3.83921090e-03, -6.22839387e-04]]), 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([0.00000000e+00, 5.82626821e-04, 1.1675961...5550e-01, 9.98841532e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 951, 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>