MLX SAR Visual QA

GMTSAR Raw Stage-2 Contract: kilauea_year_e2e_pack_fast_stage2_20260428

Oracle, MLX-generated products, differences, timing and quality gates share one evidence layout.

Summary Metrics

Mode

raw stage-2

Shape

13520 x 24516

Global Offset

0.006, -0.062

Peak Ratio

20.32

GMTSAR Stage 2

138.091

Total Seconds

53.1853

MLX Stage 2

17.5312

SAFE Materialize

2.84639

Stage 4 Like

10.8263

Geocode

4.00488

Contract

stage	raw_aligned_stage2
shape	13520, 24516
dtype	gmtsar_int16_iq
bytes per line	98064
subset window	{'region_cut': '6784/24515/6528/13519', 'range_start': 6784, 'range_end': 24515, 'azimuth_start': 6528, 'azimuth_end': 13519, 'width': 17732, 'height': 6992}
stage2 align engine	safe_tops_mlx_v2
stage2 used as stage4 source	True
stage2 artifact mode	symlink
stage2 TOPS shift backend	auto
stage2 shift grid source	geometry
aligned secondary contract	experimental TOPS-specific deramp/shift/reramp aligned SLC from SAFE/TOPS secondary source; not promoted to GMTSAR TOPS parity

GMTSAR Source

align engine	python_reference
aligned writer engine	python_shifted
stage 2 seconds	138.091
offset fit mode	scipy_multiscale_residual
offset rows	134318

Global Diagnostic

sample_stride	13, 13
sample_shape	1040, 1886
offset_y	0.00645793
offset_x	-0.0624176
peak_value	0.141221
peak_ratio	20.3151
backend_used	mlx
fallback_reasons

Artifacts

reference_slc reference_prm aligned_secondary_slc aligned_secondary_prm summary_json summary_markdown stage2_mlx_summary_json stage2_mlx_r_grd stage2_mlx_a_grd stage2_safe_summary_json stage4_summary_json stage4_phase_grd geocode_summary_json maps_page phase_burst_error_json

Experimental MLX Stage 2

explicit secondary slc	/Users/aschmidt/Codex/dem/output/kilauea_year_e2e_pack_fast_stage2_20260428/stage2_safe/S1_20260225_043040_F2.SLC
secondary equals oracle aligned	False
backend used	mlx
amplitude tile estimation	skipped
valid tiles	0/0
center offset y	10.3166
center offset x	-10.6254
writer backend	mlx
writer engine	safe_tops_mlx_v2_tops_shifted_writer
shift grid source	geometry
bshift	0
burst count	10
total seconds	17.5312

Open stage-2 side-by-side diagnostics · Open stage-2 summary JSON

SAFE/TOPS Stage 2 Materialization

engine	safe_tops_mlx_v1
target shape	13520, 24516
master XML	/Users/aschmidt/Codex/gmtsar/output/kilauea_gmtsar/2025-03-02_2026-02-25_s1a_track124/raw/S1A_IW_SLC__1SDV_20250302T043050_20250302T043120_058121_072DA7_0872.SAFE/annotation/s1a-iw2-slc-vv-20250302t043051-20250302t043119-058121-072da7-005.xml
master TIFF	/Users/aschmidt/Codex/gmtsar/output/kilauea_gmtsar/2025-03-02_2026-02-25_s1a_track124/raw/S1A_IW_SLC__1SDV_20250302T043050_20250302T043120_058121_072DA7_0872.SAFE/measurement/s1a-iw2-slc-vv-20250302t043051-20250302t043119-058121-072da7-005.tiff
secondary XML	/Users/aschmidt/Codex/gmtsar/output/kilauea_gmtsar/2025-03-02_2026-02-25_s1a_track124/raw/S1A_IW_SLC__1SDV_20260225T043039_20260225T043109_063371_07F5A3_F355.SAFE/annotation/s1a-iw2-slc-vv-20260225t043040-20260225t043108-063371-07f5a3-005.xml
secondary TIFF	/Users/aschmidt/Codex/gmtsar/output/kilauea_gmtsar/2025-03-02_2026-02-25_s1a_track124/raw/S1A_IW_SLC__1SDV_20260225T043039_20260225T043109_063371_07F5A3_F355.SAFE/measurement/s1a-iw2-slc-vv-20260225t043040-20260225t043108-063371-07f5a3-005.tiff
master rows written	13524
secondary rows written	0
total seconds	2.84639

Open SAFE/TOPS materialization JSON

Stage 4 Like Products

shape	3496, 2216
total seconds	10.8263
oracle parity passed	False
phase mean abs rad	0.00631364
phase max abs rad	3.11897

Open stage-4 diagnostics · Open phase/burst error analysis

Geocoded Map Products

shape	1760 x 1340
trans.dat rows	760617
trans.dat coordinate frame	stage4_radar
valid lookup cells	1701816
finite coverage	72.16%
finite lon/lat bounds	-155.842/-155.102/18.9825/19.9547
coverage warning	none
total seconds	4.00488
phase mean abs rad	0.00633836
phase max abs rad	3.1301

Open OpenLayers maps · Open geocode summary JSON

Filtering And Unwrap Readiness

total seconds	13.0796
ready fraction	74.73%
component count	7827
largest component fraction	74.25%
positive residues	0
negative residues	0

Open filtering/readiness page · Open filter summary JSON

Native Masked Unwrapping

algorithm	quality_guided_bucket_flood_fill
finite unwrapped fraction	74.73%
processed pixels	5789133
component count	7827
largest component fraction	74.25%
LOS units	meters
unwrap seconds	11.3676

Open unwrapping page · Open unwrap summary JSON