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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 19:11:30

Orbital Elements for HDO295
WDS: HDO295 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 0.862 Semi-major axis (arcseconds)
i: 66.4 Inclination (degrees)
Ω: 93.9 Longitude of ascending node (degrees)
T: 2030.100 Epoch of periastron passage (year)
e: 0.6 Eccentricity
ω: 262.5 Longitude of periastron (degrees)
Start-Year: 1775.0 Year
End-Year: 2275.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDO295
Position: 201107.43-573127.3 Epoch-2000 right ascension and declination
WDS-ID: 20111-5731 WDS designation
Discoverer Code: HDO295 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: 191095 HD catalog number
Hipparcos number: 99453 Hipparcos catalog number
V1: 6.76 Magnitude of the primary
V2: 7.68 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2021 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HDO295
--> -->
 
 
ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:11:30 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 = [-0.1697153329187027, -0.16436620144865274, -0.15901072942111663, -0.15364912496243188, -0.14828159592038792, -0.14290834986820097, -0.1375295942964435, -0.13214553633484968, -0.12675638310085766, -0.12136234157807593, -0.11596361868281876, -0.11056042129933581, -0.10515295631513666, -0.09974143065641783, -0.09432605132361081, -0.08890702542710356, -0.0834845602231278, -0.07805886314987219, -0.07263014186381435, -0.0671986042763352, ...], y_list = [-0.558556590763835, -0.5585728095696935, -0.5585674810170143, -0.5585406106949263, -0.5584922035264362, -0.5584222637687326, -0.558330795016224, -0.5582178001964295, -0.5580832815751903, -0.5579272407547345, -0.5577496786744757, -0.557550595611256, -0.557329991179502, -0.5570878643312982, -0.5568242133563779, -0.5565390358820355, -0.5562323288729637, -0.5559040886310158, -0.555554310794899, -0.5551829903398029, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.1697153329187027, -0.16436620144865274, -0.15901072942111663, -0.15364912496243188, -0.14828159592038792, -0.14290834986820097, -0.1375295942964435, -0.13214553633484968, -0.12675638310085766, -0.12136234157807593, -0.11596361868281876, -0.11056042129933581, -0.10515295631513666, -0.09974143065641783, -0.09432605132361081, -0.08890702542710356, -0.0834845602231278, -0.07805886314987219, -0.07263014186381435, -0.0671986042763352, ...], y_list=[-0.558556590763835, -0.5585728095696935, -0.5585674810170143, -0.5585406106949263, -0.5584922035264362, -0.5584222637687326, -0.558330795016224, -0.5582178001964295, -0.5580832815751903, -0.5579272407547345, -0.5577496786744757, -0.557550595611256, -0.557329991179502, -0.5570878643312982, -0.5568242133563779, -0.5565390358820355, -0.5562323288729637, -0.5559040886310158, -0.555554310794899, -0.5551829903398029, ...])
    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([-0.54100146, -0.5505288 , -0.55972894, -0... , -0.51036646, -0.52092938, -0.531138 ]), y = array([-4.54436230e-03, -1.01516620e-02, -1.5752...98e-02, 6.67511243e-03, 1.06573515e-03]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.54100146, -0.5505288 , -0.55972894, -0... , -0.51036646, -0.52092938, -0.531138 ]), array([-4.54436230e-03, -1.01516620e-02, -1.5752...98e-02, 6.67511243e-03, 1.06573515e-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([-0.54100146, -0.5505288 , -0.55972894, -0... , -0.51036646, -0.52092938, -0.531138 ]), array([-4.54436230e-03, -1.01516620e-02, -1.5752...98e-02, 6.67511243e-03, 1.06573515e-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([[-0.54100146, -0.5505288 , -0.55972894, .... 0.01227992, 0.00667511, -0.00454436]]), 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. , 0.0033001 , 0.00651547, 0.009...0136, 0.989566 , 0.99313562, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=507, 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([[-0.54100146, -0.5505288 , -0.55972894, .... 0.01227992, 0.00667511, -0.00454436]]), 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. , 0.0033001 , 0.00651547, 0.009...0136, 0.989566 , 0.99313562, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 507, 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>