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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:12:05

Orbital Elements for CRC48
WDS: CRC48 WDS ID/Discoverer
P: 40.000 Orbital period (years)
a: 0.83 Semi-major axis (arcseconds)
i: 88.3 Inclination (degrees)
Ω: 286.1 Longitude of ascending node (degrees)
T: 2015.462 Epoch of periastron passage (year)
e: 0.845 Eccentricity
ω: 122.4 Longitude of periastron (degrees)
Start-Year: 2005.0 Year
End-Year: 2045.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for CRC48
Position: 050749.24+175858.4 Epoch-2000 right ascension and declination
WDS-ID: 05078+1759 WDS designation
Discoverer Code: CRC48 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: . Hipparcos catalog number
V1: 9.5 Magnitude of the primary
V2: 11.5 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2022 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for CRC48
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:12:05 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 = [0.9199960348559215, 0.9073469127123962, 0.8878160365554791, 0.8603587843218274, 0.8235629000624161, 0.775438827063015, 0.7130251249818763, 0.6315616799702229, 0.5224715895633892, 0.3671404154035063, 0.11016411085071161, -0.18089994005628937, -0.18290219103002575, -0.13014980319027858, -0.06549261754686446, 0.0022126936734301627, 0.06998280600273707, 0.13655506970387132, 0.201319918266919, 0.263955872680019, ...], y_list = [0.23867670678899472, 0.2372589455101216, 0.23404134161053244, 0.22873371598167336, 0.22094256075160282, 0.210111064745016, 0.1954054512976681, 0.17547466055893166, 0.1478563649609191, 0.1071079968578729, 0.03629003565983805, -0.054345860758328035, -0.06353623764053656, -0.05439626991823418, -0.04044020524276652, -0.02470665793407041, -0.008300243343618919, 0.008271952773481838, 0.024741961160471317, 0.04095354156727146, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.9199960348559215, 0.9073469127123962, 0.8878160365554791, 0.8603587843218274, 0.8235629000624161, 0.775438827063015, 0.7130251249818763, 0.6315616799702229, 0.5224715895633892, 0.3671404154035063, 0.11016411085071161, -0.18089994005628937, -0.18290219103002575, -0.13014980319027858, -0.06549261754686446, 0.0022126936734301627, 0.06998280600273707, 0.13655506970387132, 0.201319918266919, 0.263955872680019, ...], y_list=[0.23867670678899472, 0.2372589455101216, 0.23404134161053244, 0.22873371598167336, 0.22094256075160282, 0.210111064745016, 0.1954054512976681, 0.17547466055893166, 0.1478563649609191, 0.1071079968578729, 0.03629003565983805, -0.054345860758328035, -0.06353623764053656, -0.05439626991823418, -0.04044020524276652, -0.02470665793407041, -0.008300243343618919, 0.008271952773481838, 0.024741961160471317, 0.04095354156727146, ...])
    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([-0.18089994, -0.18290219, -0.1301498 , -0...8, 0.52247159, 0.36714042, 0.11016411]), y = array([-0.05434586, -0.06353624, -0.05439627, -0...6, 0.14785636, 0.107108 , 0.03629004]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.18089994, -0.18290219, -0.1301498 , -0...8, 0.52247159, 0.36714042, 0.11016411]), array([-0.05434586, -0.06353624, -0.05439627, -0...6, 0.14785636, 0.107108 , 0.03629004])], 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([-0.18089994, -0.18290219, -0.1301498 , -0...8, 0.52247159, 0.36714042, 0.11016411]), array([-0.05434586, -0.06353624, -0.05439627, -0...6, 0.14785636, 0.107108 , 0.03629004])], 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([[-0.18089994, -0.18290219, -0.1301498 , -... 0.14785636, 0.107108 , -0.05434586]]), 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. , 0.00407277, 0.02725483, 0.055...5524, 0.68308144, 0.7526155 , 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=47, 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([[-0.18089994, -0.18290219, -0.1301498 , -... 0.14785636, 0.107108 , -0.05434586]]), 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. , 0.00407277, 0.02725483, 0.055...5524, 0.68308144, 0.7526155 , 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 47, 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>