NASA JPL / DSN

Voyager 1 Interstellar Light-Year Distance & Signal Delay Calculator

INTERSTELLAR LINK ACTIVE
RADIO WAVE VELOCITY: c (299,792.5 km/s)
Computed Light Years
0.00266 LY
1-Way Light Travel Time
23.25 hours
Round Trip Delay
46.50 hours
DSN Signal Strength
-156.4 dBm
Interstellar Distance
25.21 Billion km
Downlink Bitrate (Est.)
160 bps
Orbital Milestone Reality: Social posts frequently confuse 1 Light-Day (~170-173 AU, arriving Nov 2026) with 1 Light-Year (~63,241 AU, which will take Voyager 1 over 17,000 years to reach at 17 km/s).
Telemetry Navigation Presets
Distance from Earth 168.50 AU
10 AU (Saturn orbit) 121.6 AU (Interstellar) 300 AU (Inner Oort)
Deep Space Network (DSN) Configuration
Real-Time Telemetry Frame
VOY-1 INTERSTELLAR TELEMETRY STREAM INITIALIZING...
NASA Deep Space Network Reference: Communications handled by 8.4 GHz (X-band) transmitter powered by Plutonium-238 RTGs. Verified trajectory metrics via NASA Jet Propulsion Laboratory Horizons Ephemeris system.
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