EVA Spacewalk Biomonitoring Dashboard (2D)

EVA Workload

Suit & Telemetry

LCG cooling water flow 55%

Telemetry downlink rate 4.0 kbps

Drag inside the scene (top of canvas) to pan the view.

Biotelemetry Status

Nominal — all systems green

Heart rate

72 bpm

Core temp

37.0 °C

Suit O2 remaining

100 %

EVA elapsed

00:00

How it works

Mission control tracks a spacewalking astronaut through three coupled models, each driven by the metabolic power P (watts) of the current workload:

Heat balance (LCG):  dT/dt = (0.8·P − Q_cool) / C
Heart rate (Karvonen): HR = HR_rest + (VO2/VO2max)·(HR_max − HR_rest)
O2 consumption:      VO2 (L/min) = P / 351.7
                      O2_remaining -= VO2 · dt / tank_capacity

Workload buttons — set the target metabolic power P: Rest ≈ 120 W, Translate ≈ 350 W, Tool Work ≈ 600 W, Sprint ≈ 1000 W, matching measured NASA EVA metabolic-rate ranges.
LCG cooling flow — sets how much of that heat the Liquid Cooling Garment's water loop removes (Q_cool); too little flow at high workload drives core temperature up toward the 38 °C heat-stress threshold — watch it climb on the temperature strip-chart.
Telemetry downlink rate — the data rate of the biosensor link to the relay antenna; the streaming pulses in the scene slow down at low kbps, mirroring real bandwidth-limited suit telemetry.
Heart rate follows the Karvonen %heart-rate-reserve model with a first-order lag (~45 s), the same regression used to estimate exertion from VO2 in exercise physiology.
Each strip-chart carries caution (amber) and critical (red) bands at the real flight-limit thresholds, and the status ring/dot escalate the same way a real EVA biomedical display would.
Drag inside the upper scene to pan the astronaut/relay-antenna view — the telemetry pulse animation and tether keep their real relative geometry under the pan.

Astronaut biosensor Telemetry pulse Relay antenna