Follow-up: ULA Vulcan Launch Scrubbed for a Second Straight Day Over a Ground Communication Issue, Reset for Sunday 12:11 p.m. ET
United Launch Alliance (ULA) announced on the morning of November 14 that the Vulcan rocket's planned launch that day, set for 12:32 p.m. Eastern from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida, was scrubbed again: a network communication issue developed between the ground equipment and the launch vehicle. Liftoff is now reset for 12:11 p.m. Eastern on Sunday, November 15 (9:11 a.m. Pacific), and the rocket and its 40 Amazon Leo broadband satellites remain healthy.
In an official post, ULA said the communication issue requires a reconfiguration that would extend the hold beyond the day's 29-minute launch window, leading to Saturday morning's decision. The cause differs from Friday's scrub, which came during propellant loading when a power interruption at the Air Liquide gaseous nitrogen plant took its high-pressure pumps offline and halted the countdown.
The mission, designated LV-01, is Vulcan's first flight since a solid rocket booster nozzle anomaly shortly after liftoff on February 12, and its first launch for Amazon. Flying with six solid rocket boosters and standing 215 feet tall, the rocket is to head northeast and deploy 40 Amazon Leo satellites into low Earth orbit.
ULA said the rocket and spacecraft remain healthy. Sunday's launch window is also 29 minutes, opening at 12:11 p.m. Eastern; a successful liftoff would be the first in-flight test of Vulcan's redesigned and reworked booster nozzle.
Related: [Video ULA Vulcan Return to Flight Slips One Day: Nitrogen Plant Outage Pushes Launch of 40 Amazon Leo Satellites to Saturday Midday]
(Source: United Launch Alliance)
Reference: Florida Today
Source: United Launch Alliance
Published by GSM · USA (original Chinese edition)
Photo: 图：ULA 火神火箭矗立在 Cape Canaveral 太空军基地 41 号发射场，整流罩上带有 Amazon 与 ULA 标志，罩内装有 40 颗 Amazon Leo 卫星。联合发射联盟 ULA 官方发布。 / Photo: A ULA Vulcan rocket stands at Space Launch Complex 41 at Cape Canaveral Space Force Station, its fairing carrying Amazon and ULA markings and 40 Amazon Leo satellites inside. United Launch Alliance official photo.
- 2026-11-14[Video] ULA Vulcan Return to Flight Slips One Day: Nitrogen Plant Outage Pushes Launch of 40 Amazon Leo Satellites to Saturday Midday
- 2026-11-14Follow-up: ULA Vulcan Launch Scrubbed for a Second Straight Day Over a Ground Communication Issue, Reset for Sunday 12:11 p.m. ETThis story
