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

Double Star Calculator - Orbit

- Revision: $Rev: 1216 $
- Report created: 2025-07-11 19:21:20

Orbital Elements for STT435
WDS: STT435 WDS ID/Discoverer
P: 3542.000 Orbital period (years)
a: 1.52 Semi-major axis (arcseconds)
i: 65.9 Inclination (degrees)
Ω: 122.5 Longitude of ascending node (degrees)
T: 4577.600 Epoch of periastron passage (year)
e: 0.026 Eccentricity
ω: 359.2 Longitude of periastron (degrees)
Start-Year: 254.0 Year
End-Year: 3796.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for STT435
Position: 212123.70+025314.6 Epoch-2000 right ascension and declination
WDS-ID: 21214+0253 WDS designation
Discoverer Code: STT435 Discover designation and components
ADS number: 14894 Aitken Double Star catalog
HD number: 203323 HD catalog number
Hipparcos number: 105438 Hipparcos catalog number
V1: 8.31 Magnitude of the primary
V2: 8.20 Magnitude of the secondary
Equinox: Equinox
Date: Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for STT435
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ValueError
Python 3.12.3: /usr/bin/python3
Fri Jul 11 19:21:20 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 = [-0.48126172443130866, -0.4834349446543797, -0.48560662451579967, -0.4877767568828714, -0.48994533462595125, -0.4921123506184433, -0.4942777977368572, -0.49644166886081337, -0.49860395687307235, -0.500764654659562, -0.5029237551094092, -0.5050812511149558, -0.5072371355717883, -0.509391401378767, -0.5115440414380494, -0.513695048655108, -0.5158444159387735, -0.5179921362012415, -0.5201382023581167, -0.5222826073284207, ...], y_list = [0.4211141786030957, 0.41953961530666967, 0.41796371523758985, 0.4163864832337108, 0.414807924138516, 0.41322804280112857, 0.4116468440762728, 0.41006433282427807, 0.40848051391106055, 0.4068953922081107, 0.40530897259247445, 0.4037212599467473, 0.40213225915905726, 0.4005419751230504, 0.3989504127378778, 0.397357576908188, 0.39576347254410127, 0.3941681045612093, 0.39257147788054886, 0.3909735974286003, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.48126172443130866, -0.4834349446543797, -0.48560662451579967, -0.4877767568828714, -0.48994533462595125, -0.4921123506184433, -0.4942777977368572, -0.49644166886081337, -0.49860395687307235, -0.500764654659562, -0.5029237551094092, -0.5050812511149558, -0.5072371355717883, -0.509391401378767, -0.5115440414380494, -0.513695048655108, -0.5158444159387735, -0.5179921362012415, -0.5201382023581167, -0.5222826073284207, ...], y_list=[0.4211141786030957, 0.41953961530666967, 0.41796371523758985, 0.4163864832337108, 0.414807924138516, 0.41322804280112857, 0.4116468440762728, 0.41006433282427807, 0.40848051391106055, 0.4068953922081107, 0.40530897259247445, 0.4037212599467473, 0.40213225915905726, 0.4005419751230504, 0.3989504127378778, 0.397357576908188, 0.39576347254410127, 0.3941681045612093, 0.39257147788054886, 0.3909735974286003, ...])
    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([-0.95895774, -0.96053584, -0.96211079, ..., -0.95420451, -0.95579207, -0.95737648]), y = array([-0.00090432, -0.00265036, -0.00439639, ..., 0.00433379, 0.00258776, 0.00084172]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.95895774, -0.96053584, -0.96211079, ..., -0.95420451, -0.95579207, -0.95737648]), array([-0.00090432, -0.00265036, -0.00439639, ..., 0.00433379, 0.00258776, 0.00084172])], 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([-0.95895774, -0.96053584, -0.96211079, ..., -0.95420451, -0.95579207, -0.95737648]), array([-0.00090432, -0.00265036, -0.00439639, ..., 0.00433379, 0.00258776, 0.00084172])], 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([[-9.58957739e-01, -9.60535845e-01, -9.621...33379008e-03, 2.58775900e-03, -9.04322956e-04]]), w=array([1., 1., 1., ..., 1., 1., 1.]), u=array([0.00000000e+00, 3.35031690e-04, 6.6976086... 9.98993098e-01, 9.99329032e-01, 1.00000000e+00]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=3549, 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([[-9.58957739e-01, -9.60535845e-01, -9.621...33379008e-03, 2.58775900e-03, -9.04322956e-04]]), w = array([1., 1., 1., ..., 1., 1., 1.]), u = array([0.00000000e+00, 3.35031690e-04, 6.6976086... 9.98993098e-01, 9.99329032e-01, 1.00000000e+00]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 3549, 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>