Week in Space Data, every Friday.
Launch Ledger
Which rockets are most often delayed? As of Nov 11, 2026, 55 launches have flown since we began recording launch dates on Aug 29, 2026, and 69% of the 54 scored lifted off within a day of the first firm date on record (91% within a week). Most often late, among rockets with at least 3 scored launches: Falcon 9 Block 5, 10 of 18 within a day (average delay +2.9 days); Long March 12, 2 of 3 within a day (average delay +1 day); Electron, 4 of 6 within a day (average delay +0.5 days). A launch whose date never moved while we watched counts as on time, so a launch added to the manifest days before it flew can look punctual.
Airline punctuality, for launches. Every launch that has flown since we began recording the manifest on August 29, 2026, scored against the first firm date we had on record for it. The rule is the same for every provider, vehicle and launch site, and it is written down on the method page.
Quarterly frozen editions: On-Time Launch Report Q4 2026 · On-Time Launch Report Q3 2026
Known limit: a launch whose date never moved while we watched is scored as on time, and we cannot yet tell how far ahead its date was set. That treats every provider alike but flatters providers whose launches appear in the public manifest only days before flight. Details on the method page.
| Provider | Flew | Scored | Within 1 day | Within 7 days | Average delay | Median delay |
|---|---|---|---|---|---|---|
| SpaceX | 21 | 21 | 57% | 86% | +3.1 d | +0.4 d |
| China Aerospace Science and Technology Corporation | 11 | 11 | 73% |
| Vehicle | Flew | Scored | Within 1 day | Within 7 days | Average delay | Median delay |
|---|---|---|---|---|---|---|
| Falcon 9 Block 5 | 18 | 18 | 56% | 89% | +2.9 d | +0.7 d |
| Electron | 6 | 6 | 67% | 100% | +0.5 d | 0 d |
| Long March 12 |
| Launch site | Flew | Scored | Within 1 day | Within 7 days | Average delay | Median delay |
|---|---|---|---|---|---|---|
| Vandenberg SFB, CA, USA | 14 | 14 | 57% | 93% | +2.3 d | +0.6 d |
| Jiuquan Satellite Launch Center, People's Republic of China | 9 | 9 | 89% | 100% | +0.4 d | 0 d |
| Flew | Mission | Provider | First firm date | Delay | Slips |
|---|---|---|---|---|---|
| Nov 8 | Long March 12 | SatNet LEO Group 29 | China Aerospace Science and Technology Corporation | Nov 5, 2026date on record when we started watching | +3 d | 1 |
| Nov 7 | Soyuz 2.1b/Fregat | Glonass-K1? (Kosmos 2621?) | Russian Space Forces | Nov 7, 2026never moved while we watched | 0 d | 0 |
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).
| 91% |
| +1.7 d |
| 0 d |
| Rocket Lab | 6 | 6 | 67% | 100% | +0.5 d | 0 d |
|---|
| Galactic Energy | 3 | 3 | 67% | 100% | +0.7 d | 0 d |
|---|
| CAS Space | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Indian Space Research Organization | 2 | 2 | too few (2) | too few (2) | +7.9 d | +7.9 d |
|---|
| LandSpace | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Russian Space Forces | 2 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| Avio S.p.A | 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 |
|---|
| Isar Aerospace | 1 | 1 | too few (1) | too few (1) | +1 d | +1 d |
|---|
| Korea Aerospace Research Institute | 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 |
|---|
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.
| 3 |
| 3 |
| 67% |
| 100% |
| +1 d |
| 0 d |
| Falcon Heavy | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| GSLV Mk. II | 2 | 2 | too few (2) | too few (2) | +7.9 d | +7.9 d |
|---|
| Long March 4B | 2 | 2 | too few (2) | too few (2) | +0.6 d | +0.6 d |
|---|
| Long March 6A | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Long March 8A | 2 | 2 | too few (2) | too few (2) | +7.5 d | +7.5 d |
|---|
| Soyuz 2.1b Fregat-M | 2 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| Zhuque-2E Block 2 | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Ceres-1S | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| Ceres-2 | 1 | 1 | too few (1) | too few (1) | +2.1 d | +2.1 d |
|---|
| Gravity-1 | 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 |
|---|
| Kinetica 2 | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| KSLV-2 Nuri | 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 2C | 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 |
|---|
| 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 |
|---|
| 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 |
|---|
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.
| Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand |
|---|
| 6 |
| 6 |
| 67% |
| 100% |
| +0.5 d |
| 0 d |
| Wenchang Space Launch Site, People's Republic of China | 5 | 5 | 40% | 80% | +3.6 d | +3 d |
|---|
| Cape Canaveral SFS, FL, USA | 4 | 4 | 50% | 75% | +5.1 d | +1 d |
|---|
| Taiyuan Satellite Launch Center, People's Republic of China | 3 | 3 | 100% | 100% | 0 d | 0 d |
|---|
| Haiyang Oriental Spaceport | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Kennedy Space Center, FL, USA | 2 | 2 | too few (2) | too few (2) | 0 d | 0 d |
|---|
| Plesetsk Cosmodrome, Russian Federation | 2 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| Satish Dhawan Space Centre, India | 2 | 2 | too few (2) | too few (2) | +7.9 d | +7.9 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 |
|---|
| Guiana Space Centre, French Guiana | 1 | 1 | too few (1) | too few (1) | 0 d | 0 d |
|---|
| Naro Space Center, South Korea | 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 |
|---|
| Xichang Satellite Launch Center, People's Republic of China | 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.
| Nov 7 | Falcon 9 Block 5 | USSF-432 | SpaceX | Nov 2, 2026date on record when we started watching | +5 d | 1 |
|---|
| Nov 6 | Ceres-2 | 4 satellites | Galactic Energy | Nov 4, 2026date on record when we started watching | +2.1 d | 1 |
|---|
| Nov 5 | Long March 2C | Yaogan 51-07 to 09 | China Aerospace Science and Technology Corporation | Nov 5, 2026never moved while we watched | 0 d | 0 |
|---|
| Nov 3 | Kinetica 2 | SpaceSail Polar Group #17 | CAS Space | Nov 3, 2026never moved while we watched | 0 d | 0 |
|---|
| Nov 2 | Electron | The Sea God Surveys (iQPS Launch 9) | Rocket Lab | Nov 4, 2026first firm date it was given | -1.3 d | 0 |
|---|
| Oct 31 | Falcon 9 Block 5 | Starlink Group 15-18 | SpaceX | Oct 28, 2026date on record when we started watching | +3 d | 0 |
|---|
| Oct 30 | GSLV Mk II | IRNSS-1L (NVS-03) | Indian Space Research Organization | Oct 15, 2026first firm date it was given | +15.8 d | 0 |
|---|
| Oct 27 | Falcon 9 Block 5 | Starlink Group 15-16 | SpaceX | Oct 24, 2026date on record when we started watching | +3.1 d | 0 |
|---|
| Oct 25 | Long March 8A | SatNet LEO Group 28 | China Aerospace Science and Technology Corporation | Oct 22, 2026date on record when we started watching | +3 d | 1 |
|---|
| Oct 23 | Falcon 9 Block 5 | Starlink Group 15-15 | SpaceX | Oct 20, 2026date on record when we started watching | +3 d | 0 |
|---|
| Oct 23 | Long March 4B | Yaogan 53-07 to 09/56-19 to 21 | China Aerospace Science and Technology Corporation | Oct 23, 2026date on record when we started watching | +0.1 d | 0 |
|---|
| Oct 23 | Long March 6A | Yaogan 50-03 | China Aerospace Science and Technology Corporation | Oct 23, 2026never moved while we watched | 0 d | 0 |
|---|
| Oct 23 | Electron | We're Not Hawking Around (3x HawkEye 360) | Rocket Lab | Oct 21, 2026first firm date it was given | +2.3 d | 2 |
|---|
| Oct 21 | Ceres-1S | Xiguang-4 01 | Galactic Energy | Oct 21, 2026never moved while we watched | 0 d | 0 |
|---|
| Oct 20 | Falcon 9 Block 5 | Bandwagon 5 (Dedicated Mid-Inclination Rideshare) | SpaceX | Oct 19, 2026first firm date it was given | +1.5 d | 1 |
|---|
| Oct 16 | Falcon 9 Block 5 | USSF-481 | SpaceX | Oct 15, 2026date on record when we started watching | 0 d | 0 |
|---|
| Oct 14 | Zhuque-2E Block 2 | 10 satellites | LandSpace | Oct 14, 2026never moved while we watched | 0 d | 0 |
|---|
| Oct 13 | Falcon 9 Block 5 | Dragon CRS-2 SpX-35 | SpaceX | Oct 13, 2026first firm date it was given | +0.4 d | 0 |
|---|
| Oct 13 | Falcon 9 Block 5 | Starlink Group 15-25 | SpaceX | Sep 30, 2026date on record when we started watching | +12.4 d | 3 |
|---|
| Oct 10 | Falcon 9 Block 5 | SDA Tranche 1 Transport Layer A | SpaceX | Oct 5, 2026first firm date it was given | +5 d | 2 |
|---|
| Oct 9 | Long March 12 | SatNet LEO Group 27 | China Aerospace Science and Technology Corporation | Oct 9, 2026never moved while we watched | 0 d | 0 |
|---|
| Oct 7 | Nuri | NeonSat-2 to 6 | Korea Aerospace Research Institute | Oct 7, 2026date on record when we started watching | 0 d | 0 |
|---|
| Oct 2 | Falcon Heavy | NROL-97 | SpaceX | Oct 2, 2026first firm date it was given | 0 d | 0 |
|---|
| Oct 1 | Falcon 9 Block 5 | Transporter 18 (Dedicated SSO Rideshare) | SpaceX | Oct 1, 2026first firm date it was given | 0 d | 0 |
|---|
| Oct 1 | Falcon 9 Block 5 | Crew-13 | SpaceX | Sep 12, 2026date on record when we started watching | +18.7 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 |
|---|
| Sep 26 | Falcon 9 Block 5 | USSF-385 | SpaceX | Sep 27, 2026date on record when we started watching | -0.9 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 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 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 20 | Kinetica 1 | 9 satellites | CAS Space | Sep 20, 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 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 19 | Electron | Owl By The Dozen (StriX Launch 12) | Rocket Lab | Sep 19, 2026first firm date it was given | 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 17 | Kuaizhou 11 | SpaceTY-51 & 52 | ExPace | Sep 17, 2026never moved while we watched | 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 | 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 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 15 | Gravity-1 | SpaceSail Polar Group #16 | Orienspace Technology | 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 | Vega-C | Sentinel-3C & FLEX | Avio S.p.A | Sep 15, 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 11 | Electron | Happily Ever Faster (BlackSky Gen-3 5) | Rocket Lab | Sep 11, 2026never moved while we watched | 0 d | 0 |
|---|
| Sep 10 | Falcon 9 Block 5 | USSF-153 | SpaceX | Sep 10, 2026date on record when we started watching | 0 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 6 | Falcon 9 Block 5 | Starlink Group 15-24 | SpaceX | Sep 6, 2026date on record when we started watching | +0.1 d | 0 |
|---|
| Sep 5 | Spectrum | Onward and Upward | Isar Aerospace | Sep 4, 2026date on record when we started watching | +1 d | 1 |
|---|
| Sep 3 | GSLV Mk II | GISAT-1A (EOS-05) | Indian Space Research Organization | Sep 3, 2026never moved while we watched | 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 2 | Falcon 9 Block 5 | Starlink Group 15-23 | SpaceX | Sep 2, 2026date on record when we started watching | 0 d | 0 |
|---|
| Sep 1 | Pallas-1 | Demo Flight | Galactic Energy | Sep 1, 2026never moved while we watched | 0 d | 0 |
|---|
| Aug 30 | Falcon Heavy | Nancy Grace Roman Space Telescope | SpaceX | Aug 30, 2026never moved while we watched | 0 d | 0 |
|---|