[ PSI-47 // SAME ]
DAFT / DAFT-2 — Dust and Aerosol Measurement Feasibility Test / Dust and Aerosol Measurement Feasibility Test-2
Hardware: TSI P-Trak · Program: International Space Station (ISS) · Fuel phase: Dust/Aerosol · DOI 10.60555/ztgj-d202
Objective
The focus of DAFT / DAFT-2 was to mitigate the risk for the Smoke Aerosol Measurement Experiment (SAME). SAME relied on a commercially available condensate nuclei counter, the TSI P-Trak, to quantify smoke aerosols in a microgravity environment, however there were concerns that th P-Trak would not be reliable in microgravity as it relies on gravity to recycle isopropyl alcohol used in the measurement process. DAFT / DAFT-2 tests that a modified P-Trak particulate counter would be accurate in microgravity. Summarized objectives include: 1) Demonstrate the Functionality of the Modified TSI P-Trak in Microgravity 2) Compare the TSI P-Trak Performance against the DustTrak control 3) Create and Analyze Aerosol Standards in Microgravity 4) Ensure the reliability of future aerosol experiments
DAFT / DAFT-2 (PSI-47, TSI P-Trak, International Space Station (ISS)). 2 test runs from NASA PSI (DOI 10.60555/ztgj-d202).
Metadata Completeness
0%
Share of key conditions (oxygen, pressure, airflow) reported in the source tables.
Representative Conditions
Median of the values reported across this investigation's test runs.
- Fuel / Material
- Arizona Road Dust (ARD Fine) in combination with ISS GN2 to create an aerosol for measurement purposes.
- Gravity
- 0 g (microgravity, ISS / Cygnus flight)
- Oxygen Concentration
- Not reported
- Ambient Pressure
- Not reported
- Airflow Velocity
- Not reported
Findings summary
2 test runs recorded; microgravity (0 g, ISS / Cygnus flight).
Source: NASA PSI PSI-47: PSI-47_Experimental table_DAFT.csv (psi.nasa.gov). File, sheet and row are listed per test run below.
Experiment Design: Held Constant vs Varied
What stayed fixed across test runs, what was changed, and what was measured, from the NASA test tables.
Experimental table DAFT · 2 runs · 1 held constant · 0 varied · 0 measured
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Instrument and imaging settings (1)
- Actual Day
Test Runs (2)
Conditions and measurements for each run. Open a run to see every value and its source row.
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