Follow two launches and one system

ALSAT-3A and ALSAT-3B belong to Algeria’s Alsat-3 optical Earth-observation program. The Algerian Ministry of Defence records their launches on 15 and 31 January 2026 respectively. This is a distinct program from Alsat-2, the earlier imaging pair, and from Alcomsat, which relays communications. A shared national agency does not make their payloads or purposes interchangeable.

CGWIC’s January 31 launch account describes a July 2023 contract with ASAL covering two optical spacecraft, a ground system, training and support. It reports Alsat-3B reaching its intended orbit after a Long March 2C launch from Jiuquan at 12:01 Beijing time. The contract’s system scope matters: delivering a space-based mapping capability also involves people and infrastructure on Earth.

Two launch milestones; a wider system

Two satellites can offer more collection opportunities than one when their orbits and scheduling complement each other. A particular area’s usable observations still depend on geometry, the sensor, weather, competing requests and the ground system. The number of satellites alone cannot establish that every place can be imaged at any desired time.

Imagine two fictional satellites that both see a valley on the same cloudy afternoon. The second pass adds little clear coverage. If a later pass has a clear view, it may add useful information. This thought experiment distinguishes a possible observation from a usable one; it does not describe the actual Alsat-3 orbital spacing or a published revisit guarantee.

ASAL’s February 2026 account identifies national Earth-observation capacity and risk-management applications as purposes of the program. The reviewed announcements describe high or very high resolution, but do not establish a numerical pixel size or a measured map-accuracy guarantee. Keep those quantities unspecified unless an appropriate technical source supplies them.

A launch-success report establishes a launch outcome. A representative mapping-service test would additionally need an accepted image, processing results, delivery records and a user’s acceptance criterion. These are useful questions to ask of a program, not a claim that the public launch announcement contains the entire acceptance record. Dated reporting also prevents a commissioning label from an old catalogue snapshot becoming an unsupported statement about today.