T-ZERO Launch tracker

Glonass-K1? (Kosmos 2621?) launch time, date and countdown

In Flight Nov 7, 2026, 7:30 AM CST

Countdown

Launch time: (Sat, Nov 7, 2026, 13:30 UTC)

Launch details

US Central
UTC
Sat, Nov 7, 2026, 13:30 UTC
Launch window
1:00 AM CST – 3:00 PM CST
07:00 UTC – 21:00 UTC
Status
In Flight Launch in Flight
Provider
Russian Space Forces (Government)
Rocket
Soyuz 2.1b Fregat-M
Mission
Glonass-K1? (Kosmos 2621?)
Mission type
Navigation
Orbit
Medium Earth Orbit
Pad
Unknown Pad
Location
Plesetsk Cosmodrome, Russian Federation
Country code
RUS

Times can change. Central time is America/Chicago (CST/CDT). Source: Launch Library 2.

About this launch

Glonass-K1? (Kosmos 2621?) is a launch of the Soyuz 2.1b Fregat-M rocket operated by Russian Space Forces. It is scheduled for Sat, Nov 7, 2026, 7:30 AM CST (Sat, Nov 7, 2026, 13:30 UTC). The launch window runs 1:00 AM CST – 3:00 PM CST (07:00 UTC – 21:00 UTC). The launch site is Unknown Pad, Plesetsk Cosmodrome, Russian Federation. The target orbit is Medium Earth Orbit. Mission type: Navigation. Launch Library 2 lists the current status as “Launch in Flight”.

Mission description

Note: Payload identity uncertain. Glonass-K are the third generation of satellite design for GLONASS satellite navigation system. GLONASS is a Russian space-based navigation system comparable to the similar GPS and Galileo systems. This generation improves on accuracy, power consumption and design life. Each satellite is unpressurized and weighs 935 kg, and has an operational lifetime of 10 years.

How to watch

When Launch Library 2 lists an official YouTube webcast, T-ZERO embeds it here (click play to load the YouTube player). We do not host video ourselves; the stream stays on YouTube. Launch times often move, so reload this page for the latest schedule. External links below if the player fails.

What to expect from Glonass-K1? (Kosmos 2621?)

Glonass-K1? (Kosmos 2621?) is set to fly on a Soyuz 2.1b Fregat-M from Unknown Pad, Plesetsk Cosmodrome, Russian Federation, with Russian Space Forces as the launch provider.

Navigation missions deliver satellites for positioning and timing services.

Target orbit: Medium Earth Orbit. Medium Earth Orbit sits between low Earth orbit and geostationary altitude and is used by many navigation constellations.

Rocket and provider in our data

Soyuz 2.1b Fregat-M has 2 launches in T-ZERO’s data: 1 completed (successful), and 1 upcoming. Russian Space Forces has 2 launches across 1 rocket in our data, about 1% of the 143 launches we list. Treat the numbers as a recent snapshot: T-ZERO stores about two months of past launches plus the upcoming schedule.

Timing

NET stands for “no earlier than”, so the listed time is the earliest planned liftoff. A scrub or hold can move it by minutes, hours or days. Launch Library 2 lists a window of 14 hours, 07:00 UTC – 21:00 UTC.

Launch time in other time zones

Launch time in several time zones
UTCSat, Nov 7, 1:30 PM UTC
US EasternSat, Nov 7, 8:30 AM EST
US CentralSat, Nov 7, 7:30 AM CST
US PacificSat, Nov 7, 5:30 AM PST
United KingdomSat, Nov 7, 1:30 PM GMT
IndiaSat, Nov 7, 7:00 PM IST
JapanSat, Nov 7, 10:30 PM JST
Local time at Plesetsk, RussiaSat, Nov 7, 4:30 PM MSK

T-ZERO’s countdown above also shows your local time once the page loads. Dates can differ between zones for late-night launches.

Watching

Plesetsk, Russia has no public viewing area. Access rules, safety notes and spots are in our Plesetsk, Russia viewing guide. No official webcast link is listed yet; providers usually publish one shortly before liftoff, so check back or look at Russian Space Forces’ own channels.

Where to watch this launch in person

Public viewing: None or restricted Plesetsk, Russia. Plesetsk is a Ministry of Defence cosmodrome inside a closed administrative town (Mirny).

There is no public viewing area for this launch site, and we do not give a crowd estimate. Stay out of restricted zones.

Watch it live instead: check the launch provider's own website or channels close to launch time.

Why, and what is known about Plesetsk, Russia

Frequently asked questions about Glonass-K1? (Kosmos 2621?)

When is the Glonass-K1? (Kosmos 2621?) launch?

It is scheduled for Sat, Nov 7, 2026, 7:30 AM CST (Sat, Nov 7, 2026, 13:30 UTC). Times are NET (no earlier than) and can change, so check this page again close to launch.

Where does Glonass-K1? (Kosmos 2621?) launch from?

Launch Library 2 lists Unknown Pad, Plesetsk Cosmodrome, Russian Federation. That is part of Plesetsk, Russia; T-ZERO has a viewing guide for it at /where-to-watch/plesetsk/.

Which vehicle flies Glonass-K1? (Kosmos 2621?)?

Soyuz 2.1b Fregat-M from Russian Space Forces. In T-ZERO’s data the Soyuz 2.1b Fregat-M has 2 launches: 1 completed and 1 upcoming.

Where can I watch the Glonass-K1? (Kosmos 2621?) launch live?

No official webcast link is listed yet; providers usually post one shortly before launch. When a YouTube link is listed, this page can embed the official player; otherwise use the external webcast links. T-ZERO does not host the video file itself. There is no public viewing area at this site, so a stream is the way to watch.

How long is the launch window for Glonass-K1? (Kosmos 2621?)?

Launch Library 2 lists a window of 14 hours, 07:00 UTC – 21:00 UTC.

Reminders

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