Launch Slip Explorer
Launch dates move constantly — and the history of those moves vanishes unless someone records it as it happens. We do: every manifest change observed since August 29, 2026 is logged the moment it appears. No revision feed exists upstream, so this ledger can't be backfilled — by anyone. It only grows.
Date changes recorded
5
since Aug 29
Launches affected
3
distinct missions
Biggest recent move
31d
largest shift in the ledger
Recent date changes
SpaceNexus live manifest observation · updated 05:26ZVERIFIED
| Mission | Provider | From → To | Δ days | Observed |
|---|---|---|---|---|
| Electron | Owl Around The World (StriX Launch 11) | Rocket Lab | Sep 1 → Sep 2 | +1 | Aug 31 |
| Electron | Owl Around The World (StriX Launch 11) | Rocket Lab | Sep 1 → Sep 1 | 0 | Aug 31 |
| Ariane 62 | Metop-SG B1 | Arianespace | Dec 31 → Nov 30 | -31 | Aug 31 |
| Electron | Owl Around The World (StriX Launch 11) | Rocket Lab | Aug 31 → Sep 1 | +1 | Aug 30 |
| Falcon 9 Block 5 | Crew-13 | SpaceX | Sep 12 → Sep 30 | +17.1 | Aug 30 |
Provider scorecard — collecting history
Per-provider reliability stats (average slip, on-time tendency, net days lost) unlock at 25 recorded changes — 5 so far. We'd rather show you a counter than dress days of data up as a verdict. The weekly chart below fills in on the same schedule.
Slips per week
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Citation
SpaceNexus Launch Slip Explorer (live manifest observation; recording since Aug 29, 2026). https://spacenexus.us/launch-slips (retrieved 2026-09-01).
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<iframe src="https://spacenexus.us/embed/chart/launch-slips-by-week" width="100%" height="360" frameborder="0" title="Launch Slip Explorer — SpaceNexus" loading="lazy"></iframe> <p style="font-size:12px"><a href="https://spacenexus.us/launch-slips">Launch Slip Explorer</a> · data by SpaceNexus</p>
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Related: Launch Cadence Index · launches by site · rocket reliability records