Week in Space Data, every Friday.
On-Time Launch Report · quarterly
28 launches flew from August 29, 2026 to the end of Q3 2026. Of the 27 with a firm date on record before liftoff, 85% flew within a day of their first firm date and 93% within a week; the median delay was 0 days. 7 real slips were recorded in the quarter.
Frozen edition. Published October 5, 2026; these figures will not change. Corrections, if any, are logged on /corrections.
| Provider | Flew | Scored | Within 1 day | Within 7 days |
|---|
Method v1.1: how moves are classified and launches scored. Data: Launch Library 2 (The Space Devs, a volunteer nonprofit; support them on Patreon) manifest, observed and recorded by SpaceNexus since August 29, 2026. Licence CC BY 4.0: cite “SpaceNexus Launch Ledger”. No sponsor sees or shapes this ledger (policy).
| Average delay |
|---|
| Median delay |
|---|
| SpaceX | 9 | 9 | 89% | 89% | +1.5 d | 0 d |
|---|---|---|---|---|---|---|
| China Aerospace Science and Technology Corporation | 5 | 5 | 80% | 80% | +2.6 d | 0 d |
| Rocket Lab | 4 | 4 | 75% | 100% | +0.5 d | 0 d |
| Avio S.p.A | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| CAS Space | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| ExPace | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Galactic Energy | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Indian Space Research Organization | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Isar Aerospace | 1 | 1 | too few (1) | too few (1) | +1 d | +1 d |
| LandSpace | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Orienspace Technology | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Russian Federal Space Agency (ROSCOSMOS) | 1 | 1 | too few (1) | too few (1) | +6.9 d | +6.9 d |
| Russian Space Forces | 1 | 0 | none scored | none scored | n/a | n/a |
Shares are shown once a group has 3 or more scored launches. Delay is liftoff minus the first firm date on record; negative means it flew early.
| Vehicle | Flew | Scored | Within 1 day | Within 7 days | Average delay | Median delay |
|---|---|---|---|---|---|---|
| Falcon 9 Block 5 | 7 | 7 | 100% | 100% | 0 d | 0 d |
| Electron | 4 | 4 | 75% | 100% | +0.5 d | 0 d |
| Falcon Heavy | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Gravity-1 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| GSLV Mk. II | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Kinetica 1 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Kuaizhou 11 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Long March 12 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Long March 2D | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Long March 4B | 1 | 1 | too few (1) | too few (1) | +1 d | +1 d |
| Long March 6A | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Long March 8A | 1 | 1 | too few (1) | too few (1) | +11.9 d | +11.9 d |
| Pallas-1 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Soyuz 2.1b | 1 | 1 | too few (1) | too few (1) | +6.9 d | +6.9 d |
| Soyuz 2.1b Fregat-M | 1 | 0 | none scored | none scored | n/a | n/a |
| Spectrum | 1 | 1 | too few (1) | too few (1) | +1 d | +1 d |
| Starship V3 | 1 | 1 | too few (1) | too few (1) | +13.5 d | +13.5 d |
| Vega-C | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Zhuque-2E Block 2 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
Shares are shown once a group has 3 or more scored launches. Delay is liftoff minus the first firm date on record; negative means it flew early.
| Launch site | Flew | Scored | Within 1 day | Within 7 days | Average delay | Median delay |
|---|---|---|---|---|---|---|
| Vandenberg SFB, CA, USA | 6 | 6 | 100% | 100% | 0 d | 0 d |
| Jiuquan Satellite Launch Center, People's Republic of China | 5 | 5 | 100% | 100% | +0.2 d | 0 d |
| Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand | 4 | 4 | 75% | 100% | +0.5 d | 0 d |
| Taiyuan Satellite Launch Center, People's Republic of China | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
| Wenchang Space Launch Site, People's Republic of China | 2 | 2 | too few (2) | too few (2) | +6 d | +6 d |
| Andøya Spaceport | 1 | 1 | too few (1) | too few (1) | +1 d | +1 d |
| Baikonur Cosmodrome, Republic of Kazakhstan | 1 | 1 | too few (1) | too few (1) | +6.9 d | +6.9 d |
| Cape Canaveral SFS, FL, USA | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Guiana Space Centre, French Guiana | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Haiyang Oriental Spaceport | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Kennedy Space Center, FL, USA | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| Plesetsk Cosmodrome, Russian Federation | 1 | 0 | none scored | none scored | n/a | n/a |
| Satish Dhawan Space Centre, India | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
| SpaceX Starbase, TX, USA | 1 | 1 | too few (1) | too few (1) | +13.5 d | +13.5 d |
Shares are shown once a group has 3 or more scored launches. Delay is liftoff minus the first firm date on record; negative means it flew early.
| Flew | Mission | Provider | First firm date | Delay | Slips |
|---|---|---|---|---|---|
| Aug 30 | Falcon Heavy | Nancy Grace Roman Space Telescope | SpaceX | Aug 30, 2026never moved while we watched | 0 d | 0 |
| Sep 1 | Pallas-1 | Demo Flight | Galactic Energy | Sep 1, 2026never moved while we watched | 0 d | 0 |
| Sep 2 | Falcon 9 Block 5 | Starlink Group 15-23 | SpaceX | Sep 2, 2026date on record when we started watching | 0 d | 0 |
| Sep 2 | Electron | Owl Around The World (StriX Launch 11) | Rocket Lab | Aug 31, 2026date on record when we started watching | +2 d | 0 |
| Sep 3 | GSLV Mk II | GISAT-1A (EOS-05) | Indian Space Research Organization | Sep 3, 2026never moved while we watched | 0 d | 0 |
| Sep 5 | Spectrum | Onward and Upward | Isar Aerospace | Sep 4, 2026date on record when we started watching | +1 d | 1 |
| Sep 6 | Falcon 9 Block 5 | Starlink Group 15-24 | SpaceX | Sep 6, 2026date on record when we started watching | +0.1 d | 0 |
| Sep 10 | Long March 4B | Yaogan 53-01 to 03/56-01 to 03 | China Aerospace Science and Technology Corporation | Sep 9, 2026date on record when we started watching | +1 d | 1 |
| Sep 10 | Falcon 9 Block 5 | USSF-153 | SpaceX | Sep 10, 2026date on record when we started watching | 0 d | 0 |
| Sep 11 | Electron | Happily Ever Faster (BlackSky Gen-3 5) | Rocket Lab | Sep 11, 2026never moved while we watched | 0 d | 0 |
| Sep 13 | Falcon 9 Block 5 | O3b mPower 11-13 | SpaceX | Sep 13, 2026first firm date it was given | 0 d | 0 |
| Sep 15 | Vega-C | Sentinel-3C & FLEX | Avio S.p.A | Sep 15, 2026never moved while we watched | 0 d | 0 |
| Sep 15 | Zhuque-2E Block 2 | SpaceSail Polar Group #15 | LandSpace | Sep 15, 2026never moved while we watched | 0 d | 0 |
| Sep 15 | Gravity-1 | SpaceSail Polar Group #16 | Orienspace Technology | Sep 15, 2026never moved while we watched | 0 d | 0 |
| Sep 16 | Soyuz 2.1b | Progress MS-35 (96P) | Russian Federal Space Agency (ROSCOSMOS) | Sep 9, 2026date on record when we started watching | +6.9 d | 1 |
| Sep 17 | Long March 12 | SatNet LEO Group 25 | China Aerospace Science and Technology Corporation | Sep 17, 2026date on record when we started watching | 0 d | 0 |
| Sep 17 | Falcon 9 Block 5 | USSF-259 | SpaceX | Sep 16, 2026date on record when we started watching | +1 d | 0 |
| Sep 17 | Kuaizhou 11 | SpaceTY-51 & 52 | ExPace | Sep 17, 2026never moved while we watched | 0 d | 0 |
| Sep 17 | Soyuz 2.1b/Fregat | Glonass-K1 No. 20 (?) | Russian Space Forces | Not scored: No firm date was on record before it flew: it went from a placeholder period straight to liftoff. | n/a | 0 |
| Sep 19 | Electron | Owl By The Dozen (StriX Launch 12) | Rocket Lab | Sep 19, 2026first firm date it was given | 0 d | 0 |
| Sep 19 | Long March 2D | PIESAT-2 13-16 | China Aerospace Science and Technology Corporation | Sep 19, 2026never moved while we watched | 0 d | 0 |
| Sep 20 | Falcon 9 Block 5 | Starlink Group 15-27 | SpaceX | Sep 20, 2026never moved while we watched | 0 d | 0 |
| Sep 20 | Kinetica 1 | 9 satellites | CAS Space | Sep 20, 2026never moved while we watched | 0 d | 0 |
| Sep 23 | Long March 8A | SatNet LEO Group 26 | China Aerospace Science and Technology Corporation | Sep 11, 2026date on record when we started watching | +11.9 d | 0 |
| Sep 24 | Long March 6A | Yaogan 40 Group 04 | China Aerospace Science and Technology Corporation | Sep 24, 2026never moved while we watched | 0 d | 0 |
| Sep 26 | Electron | Owlright, Owlright, Owlright (StriX Launch 13) | Rocket Lab | Sep 26, 2026first firm date it was given | 0 d | 0 |
| Sep 26 | Falcon 9 Block 5 | USSF-385 | SpaceX | Sep 27, 2026date on record when we started watching | -0.9 d | 0 |
| Sep 28 | Starship | Starlink Group 31-1 (Starship Flight 14) | SpaceX | Sep 15, 2026first firm date it was given | +13.5 d | 3 |