Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

(Spec non-compliance) dtype Mismatch: `diagnosticModeFlag` (XML uint8 vs HDF5 uint32)

Open
#313 2 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Quiet
Tech stack
python, xml
Domain
data

Research direction

Start by locating the XML definition and HDF5 writer or validator for /science/LSAR/identification/diagnosticModeFlag, then compare how its dtype is selected. Check the behavior against the eight listed NISAR L1/L2 product types; done means the implementation complies with the XML uint8 specification across all products.

Written by the indexing model from the issue text.

Description

Data type mismatch between XML specification and HDF5 implementation for dataset /science/LSAR/identification/diagnosticModeFlag:

  • XML spec: uint8
  • HDF5 file: uint32

Impact: Affects all 8 NISAR L1/L2 product types

Products Checked

  • NISAR_L1_PR_RSLC_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001
  • NISAR_L1_PR_RIFG_013_118_A_171_014_2000_SH_20260222T102514_20260222T102520_20260306T102515_20260306T102521_X05016_P_P_J_001
  • NISAR_L2_PR_GUNW_001_062_A_019_006_2000_SH_20250927T114508_20250927T114542_20251126T114516_20251126T114545_X05016_P_F_J_001
    • NISAR_L2_PR_GCOV_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001
    • NISAR_L2_PR_GOFF_005_106_A_140_006_7700_SH_20251117T140848_20251117T140925_20251129T140849_20251129T140925_X05016_P_P_J_001
    • NISAR_L1_PR_ROFF_007_106_A_140_008_7700_SH_20251211T140849_20251211T140926_20251223T140850_20251223T140926_X05016_N_P_J_001
    • NISAR_L1_PR_RUNW_007_106_A_140_008_7700_SH_20251211T140849_20251211T140926_20251223T140850_20251223T140926_X05016_N_P_J_001
    • NISAR_L2_PR_GSLC_001_149_D_080_2005_QPDH_A_20251003T130952_20251003T131016_X05016_N_P_J_001

cc: @hfattahi @bhawkins @gshiroma @xhuang-jpl @seongsujeong

Dominant language
Python
Stars
240
Forks
90
Avg merge
4d 22h
Merged PRs (30d)
5

Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from isce-framework/isce3

All issues in isce-framework/isce3

Similar issues

More Python issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.