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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:28:10

Orbital Elements for HU372
WDS: HU372 WDS ID/Discoverer
P: 390.000 Orbital period (years)
a: 0.31 Semi-major axis (arcseconds)
i: 28.0 Inclination (degrees)
Ω: 30.2 Longitude of ascending node (degrees)
T: 2015.000 Epoch of periastron passage (year)
e: 0.198 Eccentricity
ω: 233.7 Longitude of periastron (degrees)
Start-Year: 1830.0 Year
End-Year: 2220.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HU372
Position: 213817.78+233554.5 Epoch-2000 right ascension and declination
WDS-ID: 21383+2336 WDS designation
Discoverer Code: HU372 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 106835 Hipparcos catalog number
V1: 10.16 Magnitude of the primary
V2: 10.11 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 1994 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HU372
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:28:10 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 = [-0.3383305866206148, -0.337981774905303, -0.3375816643206292, -0.3371302627004193, -0.33662758114332914, -0.336073634039018, -0.3354684390967841, -0.33481201737668526, -0.33410439332316905, -0.33334559480123765, -0.3325356531351757, -0.33167460314986963, -0.33076248321474977, -0.32979933529038813, -0.3287852049777858, -0.3277201415703855, -0.32660419810884855, -0.32543743143863396, -0.32421990217323565, -0.322951675115316, ...], y_list = [0.017547665410936508, 0.013569193520762654, 0.009588662197727218, 0.005606674113736918, 0.00162383333224633, -0.0023592546178764803, -0.006341982668246271, -0.010323742136630334, -0.01430392265240962, -0.018281912081842742, -0.022257096453148145, -0.026228859881426245, -0.030196584493437043, -0.034159650352246045, -0.03811743538176786, -0.04206931529122304, -0.04601466349953068, -0.049952851059662164, -0.05388324688999167, -0.057805216551566764, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.3383305866206148, -0.337981774905303, -0.3375816643206292, -0.3371302627004193, -0.33662758114332914, -0.336073634039018, -0.3354684390967841, -0.33481201737668526, -0.33410439332316905, -0.33334559480123765, -0.3325356531351757, -0.33167460314986963, -0.33076248321474977, -0.32979933529038813, -0.3287852049777858, -0.3277201415703855, -0.32660419810884855, -0.32543743143863396, -0.32421990217323565, -0.322951675115316, ...], y_list=[0.017547665410936508, 0.013569193520762654, 0.009588662197727218, 0.005606674113736918, 0.00162383333224633, -0.0023592546178764803, -0.006341982668246271, -0.010323742136630334, -0.01430392265240962, -0.018281912081842742, -0.022257096453148145, -0.026228859881426245, -0.030196584493437043, -0.034159650352246045, -0.03811743538176786, -0.04206931529122304, -0.04601466349953068, -0.049952851059662164, -0.05388324688999167, -0.057805216551566764, ...])
    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([-0.33607363, -0.33546844, -0.33481202, -0...7, -0.33758166, -0.33713026, -0.33662758]), y = array([-0.00235925, -0.00634198, -0.01032374, -0...9, 0.00958866, 0.00560667, 0.00162383]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.33607363, -0.33546844, -0.33481202, -0...7, -0.33758166, -0.33713026, -0.33662758]), array([-0.00235925, -0.00634198, -0.01032374, -0...9, 0.00958866, 0.00560667, 0.00162383])], 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([-0.33607363, -0.33546844, -0.33481202, -0...7, -0.33758166, -0.33713026, -0.33662758]), array([-0.00235925, -0.00634198, -0.01032374, -0...9, 0.00958866, 0.00560667, 0.00162383])], 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([[-0.33607363, -0.33546844, -0.33481202, -... 0.00958866, 0.00560667, -0.00235925]]), 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. , 0.00221719, 0.00443827, 0.006...6975, 0.99337161, 0.99557727, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=397, 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([[-0.33607363, -0.33546844, -0.33481202, -... 0.00958866, 0.00560667, -0.00235925]]), 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. , 0.00221719, 0.00443827, 0.006...6975, 0.99337161, 0.99557727, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 397, 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>