SpaceNexus Launch Cadence and Slip Report

Orbital launch attempts, outcomes and schedule slippage for the month, by provider and vehicle.

Data as of 2026-04-30 · computed 2026-09-15

← March 2026 May 2026 →All editions

Back-computed edition

This period closed before the release began publishing on a calendar. The figures are computed from the same tables, but this is a back-calculation rather than what we would have published at the time. Scheduled editions begin with 2026-08.

Launch attempts: 33
Outcomes: 31 / 2
Year to date: 107
Manifest changes observed: Not recorded

Attempts by provider

Every provider with a recorded launch attempt in the month, with outcomes and share of the month.

Attempts by provider. Every provider with a recorded launch attempt in the month, with outcomes and share of the month. Showing the first 10 of 14 rows.
#	Provider	Attempts	Successes	Failures	Share of month
1	SpaceX	12	12	0	+36.4%
2	China Aerospace Science and Technology Corporation	5	5	0	+15.2%
3	Russian Space Forces	3	3	0	+9.1%
4	Rocket Lab	2

Attempts by vehicle

Launch vehicles flown in the month, by attempts.

Attempts by vehicle. Launch vehicles flown in the month, by attempts. Showing the first 10 of 21 rows.
#	Vehicle	Attempts	Successes	Failures
1	Falcon 9 Block 5	11	11	0
2	Atlas V 551	2	2	0
3	Electron	2	2	0
4	Angara 1.2	1	1	0
5	Ariane 64	1	1

Launches behind these tables

Every recorded launch attempt in the month, in date order. This is the row set the tables above are computed from.

Launches behind these tables. Every recorded launch attempt in the month, in date order. This is the row set the tables above are computed from. Showing the first 10 of 33 rows.
Date	Mission	Provider	Vehicle	Outcome	Site
2026-04-01	SLS Block 1 \| Artemis II	National Aeronautics and Space Administration	Space Launch System Block 1	success	Kennedy Space Center, FL, USA
2026-04-02	Falcon 9 Block 5 \| Starlink Group 10-58	SpaceX	Falcon 9 Block 5	success	Cape Canaveral SFS, FL, USA
2026-04-03	Tianlong-3 \| Demo Flight	Space Pioneer	Tianlong-3	failure	Jiuquan Satellite Launch Center, People's Republic of China
2026-04-03	Soyuz 2.1a/Fregat-M \| Meridian-M No.21L	Russian Space Forces	Soyuz 2.1a Fregat-M

Manifest changes observed in the month

The slip ledger began recording on 2026-08-29, after this month ended. There is nothing to report, which is different from nothing having happened.

Nothing to report in this table for this edition. An empty table here means we recorded nothing, not that nothing happened.

Schedule movement by provider

Held back until the month's ledger holds at least 25 observations. This month holds 0, and a rate computed from that many would not mean anything.

Nothing to report in this table for this edition. An empty table here means we recorded nothing, not that nothing happened.

Vehicles not currently flying

From the hand-maintained vehicle status sheet. Each row carries the date the entry was last checked, so a stale sheet is visible rather than silently trusted.

Vehicles not currently flying. From the hand-maintained vehicle status sheet. Each row carries the date the entry was last checked, so a stale sheet is visible rather than silently trusted. 5 rows.
Vehicle	Standing	Where it stands	Sheet as of	Days since checked
Neutron	development	Rocket Lab's reusable medium-lift rocket, ~13,000 kg to LEO; first flight targeted late 2026.	2026-09-06	9
New Glenn	grounded	Grounded while Launch Complex 36 is rebuilt after the May 28, 2026 static-fire explosion; return to flight targeted before the end of 2026.	2026-09-06	9
New Shepard	paused	Paused since January 30, 2026 for at least two years while Blue Origin puts its people on the Blue Moon lunar lander; not selling seats.	2026-09-06	9
SpaceShipTwo (VSS Unity)	retired	Retired after Galactic 06 in January 2024; Virgin Galactic's Delta-class successors are targeted for commercial service from Q4 2026, with seats on sale at $750,000 since April 2026.

Methodology

Launch counts come from the SpaceEvent table, restricted to rows carrying a Launch Library 2 identifier and a terminal outcome (completed or failed). Curated seed events, which are not launches, are excluded by identifier shape.
A launch is attributed to the month its launch date falls in, in UTC.
"Attempts" counts every launch that left the pad and reached a recorded outcome. Success rate is successes divided by attempts for that month; a month with no attempts reports no rate rather than zero.
Provider is the agency recorded on the launch row as Launch Library spells it; no provider names are merged or renamed.
Slip figures come from the LaunchDateChange ledger, which records every manifest date move we observe. The ledger starts on 2026-08-29 and cannot be backfilled by anyone, us included — Launch Library exposes no revision history. Months before that date report launches without slips, and the page says so.
Per-provider slip statistics appear only once the ledger holds enough observations to be worth reporting; below that threshold the section states the count instead of publishing a rate.

What this edition can and cannot see

Coverage limits travel with the numbers, here and in every export of them.

This edition counts 33 launch attempts recorded for April 2026 — rows carrying a Launch Library identifier and a terminal outcome. Scrubbed and still-upcoming launches are not attempts and are not counted.
Launch counts describe our tracker. A month our launch history does not reach reports zero attempts, which is why every edition prints the count rather than only a rate.
Schedule movement is not available for this month: the ledger began recording on 2026-08-29, after the month ended.
Per-provider slip statistics are withheld this month: 0 observations is below the 25 needed for a rate to mean anything.
No manifest changes were observed inside this month.
No figure on this page is a forecast. This release publishes the record; it does not project cadence.

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SpaceNexus Launch Cadence and Slip Report, April 2026. SpaceNexus, data as of 2026-04-30. https://spacenexus.us/releases/launch-cadence/2026-04. https://spacenexus.us/releases/launch-cadence/2026-04 (retrieved 2026-09-15).

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