Calculateur de visibilité

Max trackable altitude

---m

Max trackable distance (slant)

---m

Angular size at limit (chute)

---arcmin

💡 Tips to improve tracking

Paint the rocket bright orange or fluorescent pink — these contrast best against blue sky
Use a high-visibility streamer or tracking smoke during coast phase
Fly with the sun behind you so the rocket is lit from your side
Stand well back from the pad — a 45° viewing angle is easier to track than directly overhead
Choose a parachute colour that contrasts the sky — orange or pink on blue sky, dark on overcast
Polarised sunglasses can improve or reduce contrast depending on sky angle

Based on angular resolution thresholds adjusted for contrast, atmospheric scattering, and visual acuity. Parachute visibility uses projected canopy diameter from below, reduced for transparency. Real-world visibility depends on sun position, glare, cloud cover, and whether you're wearing sunglasses. A tracking smoke trail or bright LED strobe dramatically increases visibility beyond these estimates.