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

Double Star Calculator - Orbit

- Revision:		$Rev: 1216 $
- Report created:		2025-07-11 18:52:55

Orbital Elements for GJ699AA2

WDS:	GJ699AA2	WDS ID/Discoverer
P:	26.000	Orbital period (years)
a:	0.0183	Semi-major axis (arcseconds)
i:	70.0	Inclination (degrees)
Ω:	101.9	Longitude of ascending node (degrees)
T:	1953.300	Epoch of periastron passage (year)
e:	0.0	Eccentricity
ω:	0.0	Longitude of periastron (degrees)
Start-Year:	2012.0	Year
End-Year:	2038.0	Year
Epoch:	2025.0	Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for GJ699AA2

Position:	175748.49+044136.2	Epoch-2000 right ascension and declination
WDS-ID:	17578+0442	WDS designation
Discoverer Code:	GJ699AA2	Discover designation and components
ADS number:	.	Aitken Double Star catalog
HD number:	.	HD catalog number
Hipparcos number:	87937	Hipparcos catalog number
V1:	9.54	Magnitude of the primary
V2:	.	Magnitude of the secondary
Equinox:		Equinox
Date:	1968	Date of last observation
Orbit grade:	9	Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags:	n	Flags

Double Star Orbit for GJ699AA2

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ValueError

Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:52:55 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 = [0.002154252258624962, 0.006357084132342603, 0.010190465383349155, 0.013431613827109992, 0.015892165697168954, 0.017429122662580402, 0.017953162371125847, 0.01743382953975148, 0.015901305904918756, 0.013444656169787338, 0.010206651887404685, 0.006375474096996168, 0.0021737769259756083, -0.0021542522586249593, -0.0063570841323426, -0.010190465383349128, -0.01343161382710999, -0.015892165697168954, -0.01742912266258039, -0.017953162371125847, ...], y_list = [-0.005934992752787025, -0.0047897089283093644, -0.0033660646308019326, -0.0017467968920993956, -2.6011667376412873e-05, 0.0016962852609059354, 0.003320000255570468, 0.004750768903091171, 0.00590544013030655, 0.006716908642550008, 0.0071380148394579596, 0.007144285559524877, 0.0067353563712936005, 0.0059349927527870255, 0.0047897089283093644, 0.0033660646308019434, 0.0017467968920993966, 2.601166737641338e-05, -0.0016962852609059222, -0.003320000255570479, ...]

/var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.002154252258624962, 0.006357084132342603, 0.010190465383349155, 0.013431613827109992, 0.015892165697168954, 0.017429122662580402, 0.017953162371125847, 0.01743382953975148, 0.015901305904918756, 0.013444656169787338, 0.010206651887404685, 0.006375474096996168, 0.0021737769259756083, -0.0021542522586249593, -0.0063570841323426, -0.010190465383349128, -0.01343161382710999, -0.015892165697168954, -0.01742912266258039, -0.017953162371125847, ...], y_list=[-0.005934992752787025, -0.0047897089283093644, -0.0033660646308019326, -0.0017467968920993956, -2.6011667376412873e-05, 0.0016962852609059354, 0.003320000255570468, 0.004750768903091171, 0.00590544013030655, 0.006716908642550008, 0.0071380148394579596, 0.007144285559524877, 0.0067353563712936005, 0.0059349927527870255, 0.0047897089283093644, 0.0033660646308019434, 0.0017467968920993966, 2.601166737641338e-05, -0.0016962852609059222, -0.003320000255570479, ...])

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([-0.01742912, -0.01795316, -0.01743383, -0...8, -0.01019047, -0.01343161, -0.01589217]), y = array([-1.69628526e-03, -3.32000026e-03, -4.7507....36606463e-03, 1.74679689e-03, 2.60116674e-05]), s undefined, per undefined

/usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.01742912, -0.01795316, -0.01743383, -0...8, -0.01019047, -0.01343161, -0.01589217]), array([-1.69628526e-03, -3.32000026e-03, -4.7507....36606463e-03, 1.74679689e-03, 2.60116674e-05])], 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([-0.01742912, -0.01795316, -0.01743383, -0...8, -0.01019047, -0.01343161, -0.01589217]), array([-1.69628526e-03, -3.32000026e-03, -4.7507....36606463e-03, 1.74679689e-03, 2.60116674e-05])], 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([[-1.74291227e-02, -1.79531624e-02, -1.743...36606463e-03, 1.74679689e-03, -1.69628526e-03]]), 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. , 0.02090116, 0.03954731, 0.063...9142, 0.89098509, 0.93536927, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=33, 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([[-1.74291227e-02, -1.79531624e-02, -1.743...36606463e-03, 1.74679689e-03, -1.69628526e-03]]), 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. , 0.02090116, 0.03954731, 0.063...9142, 0.89098509, 0.93536927, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 33, 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>