ULTRA l2 positional uncertainty is all zero in l2 maps

[lacoak21]

example:

this prints 0 and 0

from imap_processing.cdf.utils import load_cdf
map4 = load_cdf("/Users/luco3133/projects/imap_processing/data/imap/ultra/l2/2025/11/imap_ultra_l2_u90-ena-h-sf-nsp-full-hae-6deg-4mo_20251114_v000.cdf")
positional_uncert_theta = map4["positional_uncert_theta"][0,1,:]
#print(positional_uncert_theta.data)
print(max(positional_uncert_theta.data))
print(min(positional_uncert_theta.data))

I need to investigate why this is happening and where.