Particle.news
Download on the App Store

Voyager 1 Nears One Light-Day From Earth, With Two-Day Command Cycles Ahead

Rising signal delays will test Deep Space Network operations under a shrinking power budget.

Overview

  • NASA puts Voyager 1 at roughly 15.7 billion miles from Earth, with a current one-way signal time of about 23 hours 32 minutes 35 seconds.
  • Mission projections estimate the probe will cross the one light-day threshold around November 15, 2026, at roughly 16.1 billion miles.
  • Once at a light-day, each command will need about a day to arrive and another day for confirmation, pushing operations onto multi-day cycles.
  • Controllers continue to maintain contact through the Deep Space Network as the spacecraft coasts outward at about 10.6 miles per second.
  • Power from the probe’s radioisotope generators has fallen to about 230 watts, with NASA powering down systems to stretch operations past 2030 even as some reports foresee a shorter timeline.