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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 18:37:13

Orbital Elements for HDS2299
WDS: HDS2299 WDS ID/Discoverer
P: 70.000 Orbital period (years)
a: 0.184 Semi-major axis (arcseconds)
i: 96.5 Inclination (degrees)
Ω: 129.6 Longitude of ascending node (degrees)
T: 2027.300 Epoch of periastron passage (year)
e: 0.4 Eccentricity
ω: 220.6 Longitude of periastron (degrees)
Start-Year: 1990.0 Year
End-Year: 2060.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HDS2299
Position: 161620.41-183555.0 Epoch-2000 right ascension and declination
WDS-ID: 16163-1836 WDS designation
Discoverer Code: HDS2299 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 8.57 Magnitude of the primary
V2: 10.68 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2019 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for HDS2299
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 18:37:13 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 = [-0.17261355903205375, -0.16866872469883837, -0.16422713992011717, -0.15930325564445708, -0.15391121076491893, -0.14806494201552955, -0.1417783008600372, -0.1350651807986779, -0.12793965624119152, -0.12041613823991897, -0.11250955029764466, -0.10423552987763858, -0.09561066206650543, -0.08665275346713451, -0.07738115641105738, -0.06781715615540149, -0.05798443703043886, -0.0479096477310935, -0.037623091345380416, -0.02715957237426682, ...], y_list = [-0.12112707961668279, -0.11653320402497702, -0.11159611938780684, -0.10633130015378038, -0.1007539967578768, -0.09487935351114245, -0.08872253165697126, -0.0822988410112273, -0.07562388122274868, -0.06871369766008291, -0.06158495470533445, -0.05425513142449067, -0.046742745139268516, -0.0390676096975524, -0.03125113678108921, -0.023316690533044637, -0.015290008232538973, -0.007199702802529821, 0.0009221332648207532, 0.009039198479605208, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.17261355903205375, -0.16866872469883837, -0.16422713992011717, -0.15930325564445708, -0.15391121076491893, -0.14806494201552955, -0.1417783008600372, -0.1350651807986779, -0.12793965624119152, -0.12041613823991897, -0.11250955029764466, -0.10423552987763858, -0.09561066206650543, -0.08665275346713451, -0.07738115641105738, -0.06781715615540149, -0.05798443703043886, -0.0479096477310935, -0.037623091345380416, -0.02715957237426682, ...], y_list=[-0.12112707961668279, -0.11653320402497702, -0.11159611938780684, -0.10633130015378038, -0.1007539967578768, -0.09487935351114245, -0.08872253165697126, -0.0822988410112273, -0.07562388122274868, -0.06871369766008291, -0.06158495470533445, -0.05425513142449067, -0.046742745139268516, -0.0390676096975524, -0.03125113678108921, -0.023316690533044637, -0.015290008232538973, -0.007199702802529821, 0.0009221332648207532, 0.009039198479605208, ...])
    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([-0.04790965, -0.05798444, -0.06781716, -0... , -0.01655944, -0.02715957, -0.03762309]), y = array([-0.0071997 , -0.01529001, -0.02331669, -0...6, 0.0171101 , 0.0090392 , 0.00092213]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.04790965, -0.05798444, -0.06781716, -0... , -0.01655944, -0.02715957, -0.03762309]), array([-0.0071997 , -0.01529001, -0.02331669, -0...6, 0.0171101 , 0.0090392 , 0.00092213])], 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([-0.04790965, -0.05798444, -0.06781716, -0... , -0.01655944, -0.02715957, -0.03762309]), array([-0.0071997 , -0.01529001, -0.02331669, -0...6, 0.0171101 , 0.0090392 , 0.00092213])], 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([[-0.04790965, -0.05798444, -0.06781716, -... 0.0171101 , 0.0090392 , -0.0071997 ]]), 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. , 0.01784824, 0.03538129, 0.052...7598, 0.94520008, 0.96360349, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=77, 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([[-0.04790965, -0.05798444, -0.06781716, -... 0.0171101 , 0.0090392 , -0.0071997 ]]), 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. , 0.01784824, 0.03538129, 0.052...7598, 0.94520008, 0.96360349, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 77, 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>