What happened

On 3 November 2026, Ukrainian specialist publication Defense Express reported that the Russian administration had submitted a filing to the International Telecommunication Union (ITU) for a satellite network designated RASSVET-4. The reported configuration consists of 374 spacecraft at an orbital altitude of approximately 800 km, distributed across 17 planes with 22 spacecraft per plane. The filing reportedly describes 12 communications beams per spacecraft, comprising seven transmit and five receive beams, alongside frequency and antenna parameters.

Defense Express interpreted the designation as a possible sign that Bureau 1440 is preparing a revised generation of spacecraft to operate within the wider Rassvet system, rather than necessarily establishing an independent constellation. Subsequent reports repeated the filing parameters. Bureau 1440 had already publicly discussed work on a new satellite generation in September, recorded in LAT-RU-RAS-0010, but had not publicly introduced a Rassvet-4 spacecraft by the time of the reporting.

The filing is a new, more specific indicator of proposed orbital and radio-network architecture. It is not an announcement of a launch, an operational constellation or a confirmed production-ready satellite.

Evidence and limitations

Confidence: Moderate to high that the reported ITU filing contains the stated RASSVET-4 configuration, based on Defense Express’s account and subsequent specialist coverage. The original filing document and its complete technical annexes were not independently retrieved for this record. The reported details should therefore be checked against the ITU filing itself when available.

The existence of a network filing does not establish that 374 spacecraft have been manufactured, funded, assigned launch dates or deployed. ITU filings can reflect proposed spectrum and orbital rights rather than the final architecture of a programme. The interpretation that Rassvet-4 represents a redesigned successor to Rassvet-3 is an analyst inference, not a confirmed Bureau 1440 product announcement.

Reporting links the possible redesign to deployment difficulties experienced by Rassvet-3, but provides no evidence that specific faults caused a redesign decision. Likewise, speculation that Rassvet-4 spacecraft could fly on the next launch remains unconfirmed.

Assessment

The filing adds an identifiable network name and a quantified architecture to Bureau 1440’s previously acknowledged next-generation development work. The 800 km altitude and 17-by-22-plane configuration provide benchmarks against which subsequent Russian filings, production statements and orbital deployments can be compared.

It is not yet clear whether RASSVET-4 would replace some planned Rassvet-3 spacecraft, operate alongside them, or represent a regulatory filing with a different purpose. The reported beam configuration is informative about the proposed radio system but does not establish delivered capacity, terminal compatibility or coverage performance.

The next decisive evidence would be direct publication of the ITU filing, a Bureau 1440 technical statement identifying Rassvet-4 hardware, manufacturing or procurement documentation, or a launch and independent orbital identification of the new spacecraft.

Why it matters

The filing potentially signals a further spacecraft iteration at a time when the first two production batches have shown uneven orbit raising and the launch cadence remains below earlier ambitions. It also supplies a concrete, testable set of orbital and spectrum parameters rather than another general target for constellation size.

The distinction between regulatory intent and deployed capability is essential. A proposed 374-satellite architecture would be consequential if implemented, but it should not be counted as satellites in orbit or evidence that Bureau 1440 has resolved existing deployment constraints.

Sources

  • Defense Express, 3 November 2026 — original specialist account of the reported ITU RASSVET-4 filing, its orbital configuration and antenna-beam parameters; distinguishes filing from unannounced hardware.
  • Advanced Television, 4 November 2026 — independent industry publication reporting the same filing parameters and identifying the proposed redesign as an observer assessment.
  • UNN, 4 November 2026 — additional coverage of the filing and the uncertainty over whether it represents a new spacecraft variant.