Artemis II Live Tracker — Real-Time NASA Mission Telemetry

3 min read Original article ↗

V3.6 — LATEST

APR 9 2026 · JST

✅ Full end sequence approved: 59s countdown → edge glow → Welcome to Earth → dual popup

🔧 Countdown glitch fixed — SPLASHDOWN_UTC override, single large seconds display

⚡ SplashCursor: real WebGL fluid smoke trail follows cursor exactly

✨ BorderGlow: cyan/purple hover glow on key widgets

🏁 Final dual popup: donation + Artemis III mailing list after splashdown

🧹 All test triggers removed — production-ready clean build

V3.5

APR 9 2026 · 11:11 AM JST

🌙 All future mission dates updated to Artemis III 2027/2028 (NASA confirmed mid-2027)

✉️ Map mailing widget: "BE NOTIFIED FOR NEXT LAUNCH" — white bold text, bigger

⚡ Edge glow redesigned — thin slow-pulsing border on page edges only (not full-screen bleed)

⚡ Electric border: animated red/purple/orange gradient on page outline at final 10 seconds

🏁 Final dual popup: both donation + mailing list side-by-side simultaneously after splashdown

🎊 Confetti: constant smooth stream from top, staggered, fades gradually over 60 seconds

📱 Mobile desktop prompt: white text, bigger, more readable

🔧 Fixed: T-5h countdown overlay now fully opaque (no map bleed-through)

🔧 Fixed: blue overflow line removed from right panel bottom

🧪 Test panel: added ⚡ EDGE GLOW and 🏁 FINAL DUAL POPUP test buttons

V3.4

APR 8 2026 · 11:21 AM JST

🌍 New widget: Distance Back to Earth — shows live km & miles remaining until splashdown in California

📏 Spacecraft Total Distance Traveled — renamed and fixed to show full mission odometer (nearly 1,000,000 miles total!)

🔧 Fixed: Cumulative distance was decreasing on return leg — now correctly counts up to 1,118,800 km at splashdown

🔧 Fixed: Next Maneuver widget showing "Closest Approach" ETA even though flyby was already complete

📋 All completed flyby milestones corrected to real MET timestamps (120.45h–122.95h)

💳 PayPal updated to official Artemis Tracker donation link

📣 Support popup enlarged — bigger fonts, more readable on all screens

📸 Instagram follow button added to support popup (@future_vizion)

V3.3

APR 7 2026 · 10:37 AM JST

🌙 Moon distance now matches NASA AROW — calibrated to confirmed 6,758 mi data point

🔧 Fixed: ECI calculation was running 9.5h past actual flyby — threshold corrected to MET 120.45h

🔧 Fixed: Post-flyby distance formula upgraded to power-law curve (exponent 1.184) derived from NASA data

🔧 Fixed: Closest approach distance corrected from 9,650 km to confirmed 4,067 mi surface

✏️ Countdown widget header renamed → RETURN TO EARTH / SPLASHDOWN — PACIFIC

📋 Mission timeline updated — flyby, record, blackout all marked ✓ COMPLETE

📋 Return burns MCC-R1 & MCC-R2 added to Next Maneuver widget

📋 Mission duration corrected from 234h → 217.5h (matches Apr 10 splashdown)

🆕 Version badge added — click to view full changelog

🆕 Support popup added — appears on visit and every hour

🆕 Footer donate line added below support button

V3.2

APR 6 2026

NASA Coverage Events widget — 31 events FD3–FD7

NASA Live TV YouTube embed added to right panel

T-minus countdown widget with smart pre/post flyby switching

Distance to Moon widget added to right panel countdown

Next Maneuver widget with tap-for-alert notifications

V3.1

APR 4 2026

NASA AROW live telemetry via GCS mediaLink URL (82 parameters)

Meeus lunar ephemeris for real-time moon distance

Layout locked: 275px | 1fr | 248px columns

Trajectory map 3D canvas with Orion position marker

V1.0

APR 1 2026 — LAUNCH DAY

Initial tracker launched same day as Artemis II liftoff

Physics model, trajectory canvas, crew panel