Artemis II — Observer Mode

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•• ABOUT THE OBSERVER TOOL

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This application is a 'vibe code' project translating the astrophotography calculations and logic developed by Shawn Gano into a live web dashboard. For the original Python scripts and complete Artemis II imaging guide, visit gano.name/shawn/artemis2 or watch the overview video.

PRIVACY NOTE: ALL CALCULATIONS ARE PERFORMED LOCALLY. NO COORDINATE, SENSOR, OR FOCAL DATA IS RECORDED, SAVED, OR TRANSMITTED TO ANY EXTERNAL SERVER.

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Step 1 — Your Setup [Loading...]

Enter your location and telescope specs (i) [–]

📍 Observer Location

Your coordinates are sent to Open-Meteo (weather), Open-Elevation (altitude), and OpenStreetMap (location name) to provide local observing conditions. No data is stored.

LATITUDE

LONGITUDE

ELEV (m)

🔭 Telescope Optics

FOCAL LENGTH (mm)

APERTURE (mm)

📷 Camera Sensor

PIXEL SIZE (µm)

EXPOSURE (s)

HYPERSTAR MODE (f/1.9)

System Resolution: — arcsec/pixel Detection confidence: — —

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Global Mission Coverage

Ground track · Visibility footprint · Day/Night terminator ? [–]

TARGET ACQUISITION: Click anywhere on the map to extract elevation and coordinates, or use manual entry above.

LINE OF SIGHT

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SUB-SATELLITE POINT

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STEP 2 — LOCAL SKY - PLANISPHERE

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? [–]

STATUS

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ALTITUDE

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DIRECTION

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RA (J2000)

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DEC (J2000)

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DISTANCE

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Step 3 — Imaging Strategy

Human-readable conditions for your session (i) [–]

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VISIBILITY

CALCULATING...

Waiting for telemetry

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APPARENT MAGNITUDE

Calculating brightness...

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SKY CONDITIONS

Checking sun & moon...

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DETECTION POTENTIAL

0% (INVISIBLE) — 100% (CERTAIN)

Based on pixel span relative to 0.1px detection floor.

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TRACKING & EXPOSURE

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LUNAR INTERFERENCE

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LOCAL WEATHER

FETCHING...

Checking conditions from Open-Meteo...

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Step 4 — Upcoming Passes

Next dark-sky opportunities from your location [–]

          SCANNING TELEMETRY...
        

MISSION MAP — J2000 TRAJECTORY DRAG TO ROTATE · SCROLL TO ZOOM

DIST FROM EARTH

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VELOCITY

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SHADOW STATE

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MISSION PROGRESS

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