Promise Ledger
Russian state space corporation. These are the dated public commitments by Roscosmos and its people that we could source to a primary, with what happened.
5 entries: 1 met; 1 met late; 1 missed; 1 revised; 1 pending.
Plain counts, not a grade or a ranking. A short record is not a complete one. Updated Sep 28, 2026; each entry shows the date it was last checked against its source; scoring rules on the methodology page.
This first release is a selection, and a short record is not a complete record. Each programme milestone enters the ledger at its earliest dated public commitment we can find in a primary source, for governments and companies alike. Later dated commitments for the same milestone are shown on that one entry as a revision chain, oldest first, rather than as separate entries.
Includes statements by: Yuri Borisov
Met · worded as a target
Launch · Roscosmos
“11 августа в 02:10:57 мск”Translation: “11 August at 02:10:57 Moscow time”
Said . Source: Roscosmos (official Telegram channel): Восточный: собран «Союз» для запуска «Луны-25» (Aug 7, 2023, post text, line 3)
Context: Post on Roscosmos's official Telegram channel after the Soyuz-2.1b for Luna-25 was assembled at Vostochny. In the post this time follows the word «Старт» (launch); the quote starts after that word so that no dash or cut is needed. Roscosmos had said on 2023-05-30 that it was deemed expedient to launch Luna-25 in August 2023.
Outcome: A Soyuz-2.1b launched Luna-25 from Vostochny on 11 August 2023 (Moscow time; 10 August UTC). (, on or before the deadline)
Outcome source: Roscosmos (official Telegram channel): Начало новой лунной миссии! (Aug 11, 2023)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Missed · worded as a target
Landing · Roscosmos
“21 августа в районе к северу от кратера Богуславский”Translation: “21 August in the area north of Boguslawsky crater”
Said . Source: Roscosmos (official Telegram channel): «Луна-25» на пути к естественному спутнику! (Aug 11, 2023, post text, paragraph 3)
Context: Post on Roscosmos's official Telegram channel after Luna-25 separated from the Fregat upper stage. The sentence says the soft landing («её мягкая посадка на поверхность естественного спутника Земли») is planned («намечается») for this date and place; the quote starts after those words so that no dash or cut is needed.
Outcome: On 19 August 2023 a pre-landing orbit burn deviated from plan, contact was lost around 14:57 Moscow time and Roscosmos stated that Luna-25 ceased to exist after colliding with the lunar surface; no landing took place.
Outcome source: Roscosmos (official Telegram channel): Statement on Luna-25 (Aug 20, 2023)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Met late · worded as a target
Launch · Roscosmos
“9 апреля в 12:00:00 мск”Translation: “9 April at 12:00:00 Moscow time”
Said . Source: Roscosmos (official Telegram channel): Первая «Ангара-А5» допущена к пуску! (Apr 8, 2024, post text, lines 1 and 3)
Context: Post headed «Первая «Ангара-А5» допущена к пуску!» (The first Angara-A5 is cleared for launch!). In the post this time follows «Пуск с площадки 1А» (launch from pad 1A); the quote starts after those words so that no dash or cut is needed.
Outcome: The 9 April attempt stopped two minutes before lift-off and the 10 April attempt was called off; the Angara-A5 lifted off from Vostochny at 12:00 Moscow time on 11 April 2024. (, 2 days after the deadline)
Outcome source: Roscosmos (official Telegram channel): Первый старт «Ангары-А5» с Восточного! (Apr 11, 2024)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Revised · worded as a commitment
First flight · Yuri Borisov, Director General, Roscosmos · Roscosmos
“The maiden launch of this rocket will take place in 2027”
Said . Source: President of Russia (Kremlin transcript): Meeting with Government members (Apr 17, 2024, Yury Borisov report)
Context: Kremlin transcript of the President’s meeting with Government members; Borisov reported on the Angara family and the upgraded Angara-A5M.
Later dated commitments for the same milestone
The counts use the original commitment. The latest date in the chain stands as: pending.
Outcome: No Angara-A5M launch as of 2026-09-26; Roscosmos widened the first-launch date to 2027-2028 on 2025-04-12.
Outcome source: Roscosmos (official Telegram channel): Roscosmos post of 12 April 2025 on the industry in figures (Apr 12, 2025)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Pending · worded as a target
Station or module · Yuri Borisov, Director General, Roscosmos · Roscosmos
“When can it be launched? Yury Borisov: In 2027.”
Said . Source: President of Russia (Kremlin transcript): Meeting with young scientists and space industry specialists (Oct 26, 2023, exchange after Oleg Platonov)
Context: Kremlin transcript of President Putin’s meeting with young scientists and space industry specialists (RSC Energia); Putin asked when the station segment shown could be launched. Putin then said: "Vladimir Putin: The first segment must be orbited in 2027."
Later dated commitments for the same milestone
The counts use the original commitment. The latest date in the chain stands as: pending.
Outcome: Not launched as of 2026-09-26; the deadline has not passed. TASS reported on 2026-06-30 that Roscosmos projects the first module for 2028; we did not find that projection in a Roscosmos primary source, so it is not recorded as a revision.
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·
Open data: download the whole ledger (CSV, CC BY 4.0). Archived on Zenodo, DOI 10.5281/zenodo.22985970. How entries are scored: methodology. No sponsor, advertiser or partner can add, remove, reorder, annotate or preview an entry, and these pages carry no advertising.
Cite as: SpaceNexus. (2026). SpaceNexus Promise Ledger (Version 2026-09-28) [Data set]. https://doi.org/10.5281/zenodo.22985970. Licensed CC BY 4.0.
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