(RUNW) HDF5 Statistics Attributes Missing for RUNW Ionosphere Metadata

Overview

In RUNW sample products generated with CRID 05016, ionospherePhaseScreen and ionospherePhaseScreenUncertainty no longer include statistics attributes. The 'min_value', 'mean_value', 'sample_stddev', 'max_value' attributes are missing.

Affected Products:

• RUNW: ✗ Affected - 2 datasets have missing statistics (see details below)
• GUNW: ✓ No issues found

Granules tested:
NISAR_L1_PR_RUNW_007_106_A_140_008_7700_SH_20251211T140849_20251211T140926_20251223T140850_20251223T140926_X05016_N_P_J_001
NISAR_L2_PR_GUNW_001_062_A_019_006_2000_SH_20250927T114508_20250927T114542_20251126T114516_20251126T114545_X05016_P_F_J_001

Missing Attributes:

• These attributes exist in the corresponding datasets in GUNW
• Per the XML specs, these attributes should also exist in RUNW

Dataset: /science/LSAR/RUNW/swaths/frequencyA/interferogram/HH/ionospherePhaseScreen
    Missing Attributes: {'min_value', 'mean_value', 'sample_stddev', 'max_value'}

Dataset: /science/LSAR/RUNW/swaths/frequencyA/interferogram/HH/ionospherePhaseScreenUncertainty
    Missing Attributes: {'min_value', 'mean_value', 'sample_stddev', 'max_value'}

cc: @hfattahi @xhuang-jpl @jungkyoJung

Start by inspecting RUNW generation for /science/LSAR/RUNW/swaths/frequencyA/interferogram/HH/ionospherePhaseScreen and ionospherePhaseScreenUncertainty, then compare the corresponding GUNW datasets and the XML specifications. Done means both RUNW datasets contain min_value, mean_value, sample_stddev, and max_value attributes.