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

Double Star Calculator - Orbit

- Revision:   $Rev: 1216 $
- Report created:   2025-07-11 17:14:56

Orbital Elements for HEI42AA,AB
WDS: HEI42AA,AB WDS ID/Discoverer
P: 346.000 Orbital period (years)
a: 0.423 Semi-major axis (arcseconds)
i: 107.0 Inclination (degrees)
Ω: 148.4 Longitude of ascending node (degrees)
T: 1964.800 Epoch of periastron passage (year)
e: 0.812 Eccentricity
ω: 260.0 Longitude of periastron (degrees)
Start-Year: 1852.0 Year
End-Year: 2198.0 Year
Epoch: 2025.0 Besselian Epoch

Further data from the WDS Sixth Catalog of Orbits for HEI42AA,AB
Position: 053200.40-001756.7 Epoch-2000 right ascension and declination
WDS-ID: 05320-0018 WDS designation
Discoverer Code: HEI42AA,AB Discover designation and components
ADS number: 4134 Aitken Double Star catalog
HD number: 36486 HD catalog number
Hipparcos number: 25930 Hipparcos catalog number
V1: 2.41 Magnitude of the primary
V2: 3.76 Magnitude of the secondary
Equinox: 2000 Equinox
Date: 2013 Date of last observation
Orbit grade: 4 Orbit grade, ranging from 1 'definitive' to 5 'indeterminate'
Flags: n Flags

Double Star Orbit for HEI42AA,AB
--> -->
 
 
ValueError		 Python 3.12.3: /usr/bin/python3
Fri Jul 11 17:14:56 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 = [-0.16326818436235338, -0.1613191739907438, -0.15935843366172056, -0.15738599373398274, -0.1554018847133449, -0.1534061372917733, -0.15139878238831045, -0.14937985119200656, -0.1473493752070047, -0.14530738629993023, -0.14325391662472087, -0.14118899914847166, -0.13911266703173597, -0.13702495411606808, -0.13492589488295567, -0.13281552451884843, -0.13069387898390983, -0.12856099508475585, -0.12641691055146997, -0.12426166411921195, ...], y_list = [0.12632918005165436, 0.12821715467812708, 0.13009580588663922, 0.1319649054506701, 0.13382422028595573, 0.13567351226557633, 0.1375125380270775, 0.13934104877120085, 0.14115879005174806, 0.14296550155607413, 0.14476091698434257, 0.14654476339667075, 0.14831676155294035, 0.15007662527349644, 0.1518240612543495, 0.1535587687789686, 0.15528043941613284, 0.15698875670300197, 0.1586833958125066, 0.16036402320408064, ...]
 /var/www/cgi-bin/ds_orbit.py in Q_get_smoothed_orbit(x_list=[-0.16326818436235338, -0.1613191739907438, -0.15935843366172056, -0.15738599373398274, -0.1554018847133449, -0.1534061372917733, -0.15139878238831045, -0.14937985119200656, -0.1473493752070047, -0.14530738629993023, -0.14325391662472087, -0.14118899914847166, -0.13911266703173597, -0.13702495411606808, -0.13492589488295567, -0.13281552451884843, -0.13069387898390983, -0.12856099508475585, -0.12641691055146997, -0.12426166411921195, ...], y_list=[0.12632918005165436, 0.12821715467812708, 0.13009580588663922, 0.1319649054506701, 0.13382422028595573, 0.13567351226557633, 0.1375125380270775, 0.13934104877120085, 0.14115879005174806, 0.14296550155607413, 0.14476091698434257, 0.14654476339667075, 0.14831676155294035, 0.15007662527349644, 0.1518240612543495, 0.1535587687789686, 0.15528043941613284, 0.15698875670300197, 0.1586833958125066, 0.16036402320408064, ...])
    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([-2.59792233e-01, -2.60928988e-01, -2.6205....56295816e-01, -2.57475582e-01, -2.58641076e-01]), y = array([-0.0015775 , -0.00371867, -0.00585963, -0...4, 0.00484604, 0.00270497, 0.00056375]), s undefined, per undefined
 /usr/lib/python3/dist-packages/scipy/interpolate/_fitpack_py.py in splprep(x=[array([-2.59792233e-01, -2.60928988e-01, -2.6205....56295816e-01, -2.57475582e-01, -2.58641076e-01]), array([-0.0015775 , -0.00371867, -0.00585963, -0...4, 0.00484604, 0.00270497, 0.00056375])], 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([-2.59792233e-01, -2.60928988e-01, -2.6205....56295816e-01, -2.57475582e-01, -2.58641076e-01]), array([-0.0015775 , -0.00371867, -0.00585963, -0...4, 0.00484604, 0.00270497, 0.00056375])], 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([[-2.59792233e-01, -2.60928988e-01, -2.620...e-03, 2.70496908e-03, -1.57750319e-03]]), 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. , 0.00199235, 0.00397901, 0.005...7476, 0.99398933, 0.99599844, 1. ]), ub=0, ue=1, k=3, task=0, s=0.0, t=array([], dtype=float64), full_output=0, nest=353, 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([[-2.59792233e-01, -2.60928988e-01, -2.620...e-03, 2.70496908e-03, -1.57750319e-03]]), 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. , 0.00199235, 0.00397901, 0.005...7476, 0.99398933, 0.99599844, 1. ]), ub = 0, ue = 1, k = 3, task = 0, ipar = False, s = 0.0, nest = 353, 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>