BUG - Survival probability energy labels not tied to actual energy bins - Card 3297

[jtniehof]

Description of the issue

The number of energy labels in the GLOWS L3e files for Lo does not match the number of energy bins. This is because the energy bins are from the pipeline configuration file, and we updated the file, but the energy labels are hardcoded (first two lines of to_data_product_variables in glows_l3e_lo_model.py)

This is only showing up in Lo, but we should also fix Hi and Ultra

Steps to reproduce the issue

E.g.

f = spacepy.pycdf.CDF('imap_glows_l3e_survival-probability-lo_20260511-repoint00245_v011.cdf')
print(len(f['energy_grid'])) # 24
print(len(f['energy_label'])) # 13

Expected vs Actual behavior

Energy grid and energy label should have same dimensions

Additional notes, affected areas, and suggested fixes

Populate labels from the numerical variables:

spin_angle_labels = numpy.char.mod("%3.0f", self.spin_angle)  # Ultra is different
energy_labels = numpy.char.mod("%6.2f", self.energy)

[pleasant-menlo]

Your suggested format strings use space-padding to a fixed minimum width; is that behavior desired?

[pleasant-menlo]

For the time being, we have made the energy and spin axis labels with just the 2 decimal places for energy and spin angles/healpix index as integers, without any minimum width formatting/space padding.

[jtniehof]

Yeah, the leading padding is overspecifying, just specifying places after decimal is fine. That commit looks good and we can do that on main (no need to wait post-release); there are other GLOWS metadata changes pending so we shouldn't redeploy just yet.