Check noise diode firings

[kfornaz]

In what blocks do the noise diode firings behave unexpectedly?
Is it all dishes or only some specific ones? Tamirat Gogo knows more.
What to do about future observations? Do we need new sanity checks that use the visibility data?

[kfornaz]

@wkhu-astro has checked some blocks. And he will try another flagging and masking some bad points.

[wkhu-astro]

1. Task Calculate the noise diode excess, flag antennas and calibrate time fluctuations based on the noise diode excess #114: Describe the process used to mask bad antennas, specifically those that exhibit significant fluctuations in the noise on-off signal based on the noise diode. Typically, only a small number of antennas (less than one or two) in each block display this behaviour. However, it is observed that antennas performing poorly in one block may function well in another.

2. For block 1649782887, some antennas were identified where the noise diode on-off signal was less than zero. To address this, we will mask these antennas by evaluating whether np.ma.median(noise_on - noise_off) < on_off_threshold, where on_off_threshold is set to 5. This threshold is much lower than the usual median value of approximately 90 for the noise on-off signal. This function will be implemented in the noise_diode_plugin .