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Rapthor + HTCondor/GlideinWMS: Architecture, Late-Binding, and Integration Options

Technical analysis for radio astronomers and SKA/SRCNet engineers Date: May 2026

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1. Background: The Two Systems

1.1 Rapthor

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This didn't work but I'm documenting it here in case I want to try it again.

take calibration solutions, fit linear model, update cable lengths in metafits before a second round of preprocessing.

singularity shell --cleanenv --bind /data/curtin_mwaeor/src/mwa-demo/demo:/demo --bind $PWD --workdir $PWD /data/curtin_mwaeor/singularity/mwa-demo_autos_cuda12.5.1.sif
/demo/82_calfit.py \
    --metafits /data/curtin_mwaeor/dev/1274010302/raw/1274010302.metafits \
    --solns /data/curtin_mwaeor/dev/1274010302/hyp_soln_1274010302_kr_75-1667l_src1k_500it_sdc50_el36.692.fits \
 --name hyp_soln --out-dir /data/curtin_mwaeor/dev/1274010302/ \

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Rapthor + PanDA WMS: Architecture, Late-Binding, and Integration Options

Technical analysis for radio astronomers and SKA/SRCNet engineers Date: May 2026

---

1. Background: The Two Systems

1.1 Rapthor

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from astropy.io import fits
from pprint import pprint
import numpy as np
from sys import argv
from os.path import exists

path = argv[-1]
if not exists(path):
    print(f"""Usage: {argv[0]} <metafits>
          File {path} does not exist.""")

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Residuals

Differences between the observed and modeled values:

• r_i = wrap_angle( angle(solution) - angle(constructed) )
• angle(solution) is the phase of the calibration solution (input data)
• angle(constructed) is the phase of the model fit,
• wrap_angle ensures the phase residuals remain within $[- \pi, \pi]$.

$\chi^2/\text{dof}$

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