The data behind the envelope
Every condition value PYRION uses comes from a NASA Physical Sciences Informatics (PSI) combustion investigation, with the file and location it was read from. This page shows what was extracted from each one.
- ✓ 9,650 located by code in the NASA source: 8,529 table cells at their row and column, 1,121 quotes found word for word
- 2 with file and location (format not yet read by the checker)
- 647 flagged insufficient, not counted
Lineage: from PSI to a verdict
Every step is a file in the repository. Counts are read from the manifests and from the last committed validation report (2026-11-15 09:00:13 UTC).
- NASA PSI66,567files listed in 24 combustion investigations (13.5 TB)
data/manifest/coverage.csv - Selected and checksummed1,025files downloaded with SHA-256 (14.8 GB): tables, reports, test matrices
data/manifest/checksums_P*.csv - Extracted10,299condition values, each with file, location, original text and unit
data/conditions/*.csv - Traced to the source9,6508,529 table cells and 1,121 quotes re-read from the PSI file
validation/run_all.py - Automated gates0critical findings; 0 major, 134 minor logged for review
validation/reports/latest.md - Engine4 verdictsdeterministic rules: same records and target in, same verdict out
engine/src
Coverage by investigation
18 of 24 investigations have extracted values so far, 1,669 distinct tests, 87 % of values read by code from PSI tables. Sorted by extracted values. A dash means that axis is not stated in the extracted records for that investigation, in PSI as read so far.
| Investigation | Values | Tests | O₂ | Pressure | Gravity | Fuel phase | Diluent | Flame type | Papers | DOI · license | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| PSI-69 FLEX Flame Extinguishment Experiment | 2,358 | 275 | ● | ● | ● | ● | ● | — | 51 | 10.60555/mbq8-0451 CC0-1.0 | |
| PSI-159 ACME CFI-G Advanced Combustion via Microgravity Experiments / Cool Flames Investigation with Gases | 2,188 | 334 | ● | ● | ● | ● | — | ● | 2 | 10.60555/cyt1-kh64 CC0-1.0 | |
| PSI-10 ACME/Flame Design Advanced Combustion via Microgravity Experiments / Flame Design | 2,165 | 328 | ● | ● | ● | ● | ● | ● | 33 | 10.60555/w4zy-bt45 license not stated on PSI | |
| PSI-25 BASS-II Burning and Suppression of Solids - II | 1,095 | 131 | ● | ● | ● | ● | ● | — | 17 | 10.60555/4qc4-de67 CC0-1.0 | |
| PSI-107 SPICE Smoke Point In Co-flow Experiment | 924 | 152 | ● | ● | ● | ● | ● | — | 9 | 10.60555/9kbh-e962 CC0-1.0 | |
| PSI-26 BASS Burning and Suppression of Solids | 387 | 117 | ● | ● | ● | ● | ● | — | 10 | 10.60555/58h4-dy80 CC0-1.0 | |
| PSI-39 CFI Cool Flames Investigation | 357 | 80 | ● | ● | ● | ● | ● | — | 7 | 10.60555/m6pj-a914 CC0-1.0 | |
| PSI-101 SAME-R Smoke Aerosol Measurement Experiment-Reflight | 227 | 109 | — | — | ● | ● | ● | — | 6 | 10.60555/2np7-jv14 CC0-1.0 | |
| PSI-20 ACME BRE Advanced Combustion via Microgravity Experiments - Burning Rate Emulator | 163 | 23 | ● | ● | ● | ● | ● | — | 16 | 10.60555/vb93-3y72 CC0-1.0 | |
| PSI-68 FLEX-2 Flame Extinguishment Experiment - 2 | 129 | 9 | ● | ● | ● | ● | ● | — | 48 | 10.60555/byp8-h018 CC0-1.0 | |
| PSI-23 ACME s-Flame Advanced Combustion via Microgravity Experiments-Structure and Response of Spherical Diffusion Flames | 75 | 19 | ● | ● | ● | ● | ● | — | 44 | 10.60555/k57n-p030 CC0-1.0 | |
| PSI-99 SAFFIRE-II Spacecraft Fire Experiment-II | 58 | 10 | ● | — | ● | ● | ● | — | 7 | 10.60555/2chp-m469 CC0-1.0 | |
| PSI-21 ACME CLD Flame Advanced Combustion via Microgravity Experiments / Coflow Laminar Diffusion Flame | 42 | 33 | — | — | ● | ● | ● | — | 18 | 10.60555/23e1-9950 CC0-1.0 | |
| PSI-102 SAME Smoke and Aerosol Measurement Experiment | 33 | 9 | — | — | ● | ● | ● | — | 16 | 10.60555/gd4k-8h62 CC0-1.0 | |
| PSI-22 ACME E-FIELD Flames Advanced Combustion via Microgravity Experiments Electric-Field Effects on Laminar Diffusion Flames | 31 | 21 | ● | — | ● | ● | ● | — | 25 | 10.60555/se5a-8c73 CC0-1.0 | |
| PSI-100 SAFFIRE-III Spacecraft Fire Experiment-III | 23 | 3 | ● | — | ● | ● | ● | — | 3 | 10.60555/040q-4h36 CC0-1.0 | |
| PSI-106 SLICE Structure and Liftoff In Combustion Experiment | 23 | 13 | — | — | ● | ● | ● | — | 5 | 10.60555/pm12-rg61 CC0-1.0 | |
| PSI-98 SAFFIRE-I Spacecraft Fire Safety Experiment-I | 21 | 3 | ● | — | ● | ● | ● | — | 6 | 10.60555/0t15-1z43 CC0-1.0 | |
| PSI-47 DAFT / DAFT-2 Dust and Aerosol Measurement Feasibility Test / Dust and Aerosol Measurement Feasibility Test-2 | — | — | — | — | — | — | — | — | 2 | 10.60555/ztgj-d202 CC0-1.0 | |
| PSI-60 Computational and Experimental Analysis of SPICE Data Sets | — | — | — | — | — | — | — | — | 1 | 10.60555/mzjm-yv57 CC0-1.0 | |
| PSI-62 Concurrent Flame Spread Modeling using Flamelet Generated Manifolds in Microgravity with Comparison to BASS Experiments using Two-Color Tomography | — | — | — | — | — | — | — | — | 4 | 10.60555/e9xp-ex83 CC0-1.0 | |
| PSI-115 Utilization of the Smoke Aerosol Measurement Experiment Data for Advanced Modeling and Simulation of Smoke Generation in Micro-Gravity | — | — | — | — | — | — | — | — | 0 | 10.60555/q0v5-1v28 CC0-1.0 | |
| PSI-117 Effect of External Thermo-Convective Perturbation on Cool Flame Dynamics: A Multidimensional Multi-Physics CFD Analysis | — | — | — | — | — | — | — | — | 10 | 10.60555/gz0q-b577 CC0-1.0 | |
| PSI-142 Quantitative Studies of Cool Flame Transitions at Radiation / Stretch Extinction Using Counterflow Flames | — | — | — | — | — | — | — | — | 12 | 10.60555/80qf-vj95 CC0-1.0 |
For predictive modeling
Inputs: the test conditions (oxygen, pressure, gravity regime, fuel and phase, diluent, flow, sample size). Outputs: the measured outcomes below, per test, with the source of each value. Join them on investigation and test id.
| Investigation | Measured outcome | Unit | Values |
|---|---|---|---|
| PSI-10 | o2 mole fraction after test | 1 | 187 |
| PSI-10 | pressure after test | kPa | 307 |
| PSI-25 | o2 mole fraction after test | 1 | 125 |
| PSI-69 | burn time | s | 268 |
| PSI-69 | test end | — | 274 |
| PSI-69 | visible flame extinction diameter | mm | 197 |
| PSI-98 | burn time | s | 2 |
| PSI-99 | burn time | s | 5 |
| PSI-159 | burn time | s | 329 |
| PSI-159 | cool flame | — | 8 |
| PSI-159 | hot ignition | — | 333 |
| PSI-159 | o2 mole fraction after test | 1 | 179 |
Before training anything: these are values extracted and traced to NASA files, not a validated training set. Rows flagged insufficient evidence are excluded here and must not be used as measurements; tests differ in hardware, fuel and gravity regime, so pool across investigations only with care; and a model fitted to microgravity or normal-gravity tests says nothing direct about partial gravity. More outcomes recorded in NASA spreadsheets (ignition power, smoke measurements) are in the download as outcomes_extra, as recorded. Download the dataset.
How a value gets here
- The PSI files of each investigation are downloaded and listed with their SHA-256 checksum.
- Values are read by code from PSI experimental tables (cell by cell), or quoted from the investigation's documents with the page and the exact sentence.
- Each value keeps its original text and unit, its converted value, its file and location, and a status: extracted, or flagged as insufficient evidence.
- Automated checks run on every change: schema, provenance, cell trace against the source file, unit conversion, physical bounds, consistency and citation. Milestone reviews are run by separate automated reviewer agents (metrology, provenance, combustion, mission).
Data: NASA PSI, released under CC0-1.0 except where the table says otherwise. A hackathon project, not a NASA product.