Skip to content

SPRINT Cold Flow Test - November 7th, 2025

Two cold flows were completed in the quad beginning after 9:30 p.m. This was the first integrated test after the control software rewrite.

Recorded Result

The oxidizer-tank pressure channel peaked at approximately 579 psi in Test 1 and 523 psi in Test 2. Propellant-mass change, zeroed to the median reading during the two seconds before the oxidizer fill valve opened, reached 21.14 kg and 21.10 kg respectively. The first file contains 3,848 rows over 68.45 seconds, or approximately 56 recorded rows per second. The second contains 1,942 rows over 57.13 seconds, or approximately 34 rows per second. Those measured row rates do not match the 100Hz and 50Hz labels in the archived filenames.

Test Video

SPRINT cold flow test on November 7th, 2025.

Test Data

Test 1

Oxidizer fill and tank pressures with propellant-mass change from SPRINT cold flow test 1
Data from the first cold flow test on November 7th, 2025.

Test 2

Oxidizer fill and tank pressures with propellant-mass change from SPRINT cold flow test 2
Data from the second cold flow test on November 7th, 2025.

Team Photo

SPRINT team at the November 7th, 2025 cold flow test
SPRINT team members at the cold flow test on November 7th, 2025.