VectorTrek | Lunar Tracking Console

OBSERVER LOCATION

Location mode

Using Charlotte, NC. Browser calculations use the NASA Moon Earth-fixed vector.

MOON ILLUMINATION

—Full-disk texture • Sun-directed curved terminator

Waiting for telemetry

TIME PREVIEW • LIVE

−15 days+15 days

Speed

Live lighting from JPL geometry. Time previews use an approximate lunar cycle.

Terminator and sunlit fraction use the Sun–Moon–observer geometry from JPL DE440. Surface texture is an artistically reconstructed full-disk texture (the illuminated half was mirrored to remove the original phase shadow). Libration and exact crater registration are not modeled.

OBSERVER-RELATIVE TELEMETRY

Altitude—Above/below horizon

Azimuth—Compass bearing

Distance—Observer to Moon

Illumination—Percent of lunar disk

Right ascension—Geocentric • hours

Declination—Geocentric • degrees

AZIMUTH COMPASS

ALTITUDE ABOVE HORIZON

EARTH SUBLUNAR POINT

Latitude: —
Longitude: —
Observer: —

PHOTOREALISTIC MOON PHASES

LUNAR CALENDAR

—

Select a day to preview its approximate lunar phase. Select Today to return to live telemetry.

LUNAR PHASE TIMELINE

New MoonFirst QuarterFull MoonLast QuarterNew Moon

Live phase information

DATA FEED STATUS

Telemetry timestamp (UTC): —
Telemetry age: —
Last browser fetch: —
JSON source: /moon/moon.json

Automatically checks JSON every second. The Raspberry Pi live publisher generates fresh ephemeris telemetry every second. Altitude, azimuth and distance are calculated for the selected observer from the Skyfield Earth-fixed Moon vector (geometric horizon, no atmospheric refraction); right ascension and declination are geocentric. Live lighting uses Sun and Moon Earth-fixed vectors from Skyfield. The lunar photo is an artistic surface texture, not a registered lunar globe. Calendar and accelerated previews are synodic estimates, not historical JPL ephemerides. Subpoint values are those supplied by your Python program.