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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:53:39

Orbital Elements for RST3652
WDS: RST3652 WDS ID/Discoverer
P: 500.000 Orbital period (years)
a: 1.355 Semi-major axis (arcseconds)
i: 113.7 Inclination (degrees)
Ω: 277.7 Longitude of ascending node (degrees)
T: 2002.254 Epoch of periastron passage (year)
e: 0.7 Eccentricity
ω: 96.1 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 RST3652
Position: 093918.12-101240.2 Epoch-2000 right ascension and declination
WDS-ID: 09393-1013 WDS designation
Discoverer Code: RST3652 Discover designation and components
ADS number: . Aitken Double Star catalog
HD number: . HD catalog number
Hipparcos number: 47386 Hipparcos catalog number
V1: 10.73 Magnitude of the primary
V2: 10.79 Magnitude of the secondary
Equinox: Equinox
Date: 2019 Date of last observation
Orbit grade: 5 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: Flags

Double Star Orbit for RST3652
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ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:53:39 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 = [0.27902905637324565, 0.285966898279772, 0.29289537108593405, 0.29981423191604595, 0.30672323674573704, 0.3136221403567157, 0.3205106962910092, 0.3273886568046778, 0.33425577282094565, 0.3411117938827686, 0.34795646810475844, 0.3547895421245175, 0.36161076105324974, 0.36841986842573676, 0.37521660614957214, 0.3820007144536538, 0.3887719318359192, 0.39552999501026004, 0.40227463885261944, 0.4090055963462405, ...], y_list = [0.9520177333357098, 0.9519538019336409, 0.9518586819841004, 0.9517323250038292, 0.951574681281924, 0.9513856998705758, 0.9511653285755445, 0.9509135139463581, 0.9506302012662363, 0.9503153345417313, 0.949968856492083, 0.9495907085382828, 0.9491808307918415, 0.948739162043254, 0.948265639750159, 0.9477602000251841, 0.9472227776234753, 0.9466533059298997, 0.9460517169459183, 0.9454179412761258, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[0.27902905637324565, 0.285966898279772, 0.29289537108593405, 0.29981423191604595, 0.30672323674573704, 0.3136221403567157, 0.3205106962910092, 0.3273886568046778, 0.33425577282094565, 0.3411117938827686, 0.34795646810475844, 0.3547895421245175, 0.36161076105324974, 0.36841986842573676, 0.37521660614957214, 0.3820007144536538, 0.3887719318359192, 0.39552999501026004, 0.40227463885261944, 0.4090055963462405, ...], y_list=[0.9520177333357098, 0.9519538019336409, 0.9518586819841004, 0.9517323250038292, 0.951574681281924, 0.9513856998705758, 0.9511653285755445, 0.9509135139463581, 0.9506302012662363, 0.9503153345417313, 0.949968856492083, 0.9495907085382828, 0.9491808307918415, 0.948739162043254, 0.948265639750159, 0.9477602000251841, 0.9472227776234753, 0.9466533059298997, 0.9460517169459183, 0.9454179412761258, ...])
    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([-0.77660814, -0.76596633, -0.75472413, -0...5, -0.80520083, -0.79620001, -0.78667732]), y = array([-0.00187374, -0.01037486, -0.01886779, -0...1, 0.02361502, 0.01512686, 0.00662884]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-0.77660814, -0.76596633, -0.75472413, -0...5, -0.80520083, -0.79620001, -0.78667732]), array([-0.00187374, -0.01037486, -0.01886779, -0...1, 0.02361502, 0.01512686, 0.00662884])], 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([-0.77660814, -0.76596633, -0.75472413, -0...5, -0.80520083, -0.79620001, -0.78667732]), array([-0.00187374, -0.01037486, -0.01886779, -0...1, 0.02361502, 0.01512686, 0.00662884])], 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([[-0.77660814, -0.76596633, -0.75472413, .... 0.02361502, 0.01512686, -0.00187374]]), 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. , 0.00280401, 0.0057046 , 0.008...4176, 0.99211292, 0.99465989, 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([[-0.77660814, -0.76596633, -0.75472413, .... 0.02361502, 0.01512686, -0.00187374]]), 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. , 0.00280401, 0.0057046 , 0.008...4176, 0.99211292, 0.99465989, 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>