# Kuaizhou 1A | Traffic VDES A & B: launch

> Kuaizhou 1A by ExPace from Jiuquan Satellite Launch Center, People's Republic of China. Flown: Success.

- Canonical page: https://spacenexus.us/launch/cmtdf0uj8001noqhx3j2q8t8j
- This Markdown version: https://spacenexus.us/launch/cmtdf0uj8001noqhx3j2q8t8j.md
- Data as of: 2026-10-13 01:45 UTC (last Launch Library 2 sync)
- How the numbers are made: https://spacenexus.us/launch-slips/method

## Facts

- Launch: Kuaizhou 1A | Traffic VDES A & B
- Mission: Traffic VDES A & B
- Provider: ExPace
- Rocket: Kuaizhou 1A
- Pad: Jiuquan Satellite Launch Center, People's Republic of China
- Country of the launch site: CHN
- Date (UTC): Fri, Dec 5, 09:00 UTC (2025-12-05T09:00:00.000Z)
- Launch window: 2025-12-05 08:54 UTC to 2025-12-05 09:54 UTC
- Status: completed (Launch Library 2: Success)
- Outcome: Success
- Real slips recorded: 0; other date moves (placeholder rolls, firmings), not slips: 0

## Mission description

Quoted from Launch Library 2: Two technology demonstration satellites for satellite transmissions of signals for the VHF Data Exchange System (VDES), a successor to the current Automatic Identification System (AIS) on ships and maritime vessels for traffic management at sea with higher bandwidth on new frequencies for secure communications and e-navigation. This project is a joint effort by the China Ministry of Transport's China Transport Telecommunications Information Center and SpaceSail, operator of the Qianfan/G60 constellation.

## Date history

No date change recorded for this launch since our ledger began.

## Sources

- [Launch Library 2 by The Space Devs](https://thespacedevs.com): launch names, providers, rockets, pads, dates and status
- [SpaceNexus Launch Ledger (our own record of every date change)](https://spacenexus.us/launch-slips/method)
- [Mission information (link from Launch Library 2)](https://www.spacelaunchnow.me/launch/kuaizhou-1a-traffic-vdes-a-b)

## Licence and credits

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- Launch facts (names, providers, rockets, pads, dates, status): Launch Library 2 by The Space Devs (thespacedevs.com), credited and not relicensed by SpaceNexus.
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