Promise Ledger

CNSA: public spaceflight commitments

China National Space Administration. These are the dated public commitments by CNSA and its people that we could source to a primary, with what happened.

1 entry: 1 met.

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.

Entries

Met

Met late

Missed

Pending

What the statuses mean

Met:: happened on or before the deadline.

Entries, soonest deadline first

Tianwen-2 asteroid sample-return launch in the first half of 2025
Met · worded as a target
Launch · CNSA
“正按计划有序推进发射前各项测试准备工作，计划于今年上半年实施发射。”Translation: “Pre-launch testing and preparations are proceeding in an orderly way according to plan, and the launch is planned for the first half of this year.”
Said Feb 20, 2025. Source: China National Space Administration: 天问二号探测器运抵发射场 (Tianwen-2 probe arrives at launch site) (Feb 20, 2025, paragraph 1)
Context: CNSA release on the probe's arrival at the Xichang Satellite Launch Center.
Deadline
“今年上半年 (the first half of this year)”, read as Jun 30, 2025 (half precision)Worded as a target ("targeting", "plan", "expect", "no earlier than")
Counts as met when
Tianwen-2 lifts off on or before 30 June 2025.
Outcome: Tianwen-2 launched from Xichang on 29 May 2025 (Beijing time; 28 May UTC) and reached asteroid 2016 HO3 in July 2026. (May 29, 2025, on or before the deadline)
Outcome source: China National Space Administration: 天问二号探测器抵达目标小行星开展科学探测 (Tianwen-2 arrives at its target asteroid) (Jul 6, 2026)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·

Corrections, responses and submissions

Something wrong? Report a correction with the entry and a source. Every entry also has its own link.
An organisation named here can send its public response to an entry through the same link; a dated, sourced response is shown on the entry.
Know a dated public commitment we have not listed? Submit it with the exact words and a primary source (the speaker's own post, video with a timestamp, release, filing or transcript).
The same rules and the same standard of evidence apply to everyone. Confirmed changes are logged on the corrections page with the date.

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.

The whole Promise Ledger, with every organisation and person, and the topic trackers.

CNSA: public spaceflight commitments

China National Space Administration. These are the dated public commitments by CNSA and its people that we could source to a primary, with what happened.

1 entry: 1 met.

Entries

Met

Met late

Missed

Pending

What the statuses mean

Met:: happened on or before the deadline.

Entries, soonest deadline first

Tianwen-2 asteroid sample-return launch in the first half of 2025
Met · worded as a target
Launch · CNSA
“正按计划有序推进发射前各项测试准备工作，计划于今年上半年实施发射。”Translation: “Pre-launch testing and preparations are proceeding in an orderly way according to plan, and the launch is planned for the first half of this year.”
Said Feb 20, 2025. Source: China National Space Administration: 天问二号探测器运抵发射场 (Tianwen-2 probe arrives at launch site) (Feb 20, 2025, paragraph 1)
Context: CNSA release on the probe's arrival at the Xichang Satellite Launch Center.
Deadline
“今年上半年 (the first half of this year)”, read as Jun 30, 2025 (half precision)Worded as a target ("targeting", "plan", "expect", "no earlier than")
Counts as met when
Tianwen-2 lifts off on or before 30 June 2025.
Outcome: Tianwen-2 launched from Xichang on 29 May 2025 (Beijing time; 28 May UTC) and reached asteroid 2016 HO3 in July 2026. (May 29, 2025, on or before the deadline)
Outcome source: China National Space Administration: 天问二号探测器抵达目标小行星开展科学探测 (Tianwen-2 arrives at its target asteroid) (Jul 6, 2026)
Checked against the source on Sep 26, 2026. Report a correction or send a response to this entry ·

Corrections, responses and submissions

Something wrong? Report a correction with the entry and a source. Every entry also has its own link.
An organisation named here can send its public response to an entry through the same link; a dated, sourced response is shown on the entry.
Know a dated public commitment we have not listed? Submit it with the exact words and a primary source (the speaker's own post, video with a timestamp, release, filing or transcript).
The same rules and the same standard of evidence apply to everyone. Confirmed changes are logged on the corrections page with the date.

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.

The whole Promise Ledger, with every organisation and person, and the topic trackers.

CNSA: public spaceflight commitments

Entries, soonest deadline first

Tianwen-2 asteroid sample-return launch in the first half of 2025

Corrections, responses and submissions

CNSA: public spaceflight commitments

Entries, soonest deadline first

Tianwen-2 asteroid sample-return launch in the first half of 2025

Corrections, responses and submissions

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