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Soyuz rocket launches a military payload

In the early hours of April 17, 2026, a Soyuz-2-1b rocket lifted off from the Plesetsk military launch site with a classified cargo for the Ministry of Defense.

Previous military launch: 2026 March 23


Insertion

The expected ground track of the ascent trajectory for Soyuz rocket during launch in April 2026.


Soyuz rocket launch on April 17, 2026, at a glance:

Spacecraft designation
Kosmos
Launch date and time
2026 April 17
Launch vehicle
Launch site
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Preparations for flight

Around April 10, 2026, Russian authorities issued multiple warnings to air and sea traffic about upcoming rocket launches: one on April 13 and April 29, with launch windows between 21:00 and 23:59 UTC, and another between April 14 and April 30, with an unusually long window between 00:00 and 16:00.

As noted by a space historian Bart Hendrickx, the announced danger zones matched known impact sites for the payload fairing of the Angara-1.2 rocket and for the second stage of the Soyuz-2 rocket, either indicating parallel launch campaigns for two vehicles based in Plesetsk or intentionally creating a confusion as a countermeasure against a potential attempt by Ukrainian forces to strike a fueled rocket on the launch pad.

According to the statement by the Russian Ministry of Defense, distributed by the official Russian media around 03:00 Moscow Time on April 17, 2026, the Soyuz-2-1b rocket lifted off as planned with multiple spacecraft for the Ministry of Defense. Soon after 02:30 Moscow Time, multiple sightings of what appeared like a rocket ascent was reported in Finland.

Shortly thereafter, the US Space Force catalogued an object associated with the launch in a 457 by 547-kilometer orbir with an inclination 98.33 degrees toward the Equator.

 

The article and graphics by Anatoly Zak; Last update: April 17, 2026

Page editor: Alain Chabot

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insider content

scenario

A Soyuz-2-1b rocket lifts off from Plesetsk on Nov. 25, 2023. Click to enlarge.