# Did the Long March-3B Survive a Lightning Strike at Liftoff?

A Long March-3B rocket absorbed a lightning strike approximately 30 seconds after liftoff from China's Xichang Satellite Launch Center on July 23, 2026 — and still delivered its payload to [geostationary orbit (GEO)](https://orbital-intel.com/glossary/geo) as planned. The China Aerospace Science and Technology Corporation (CASC) confirmed the Tianlian II-06 communications relay satellite reached its intended orbit, where it will support data relay services to China's Tiangong Space Station and other crewed missions. Crowds gathered near Xichang captured video and photographs of the strike, with audible cries of alarm from spectators. The mission success despite a direct lightning hit puts Long March-3B alongside a short historical list of launch vehicles that have absorbed atmospheric electrical discharge and continued to orbit — most notably NASA's Saturn V during Apollo 12 and a Russian Soyuz vehicle in 2019.

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## What Happened at Xichang on July 23

The Long March-3B lifted off from Xichang Satellite Launch Center in Sichuan Province at a time when atmospheric conditions were evidently within Chinese launch commit criteria. Thirty seconds into flight — a phase when the vehicle is climbing through the lower atmosphere at high velocity but before it has cleared the electrically active cloud layers — a lightning bolt made contact with the rocket.

Xichang is a high-altitude launch site known for frequently launching GEO missions due to its lower latitude compared to northern Chinese facilities. The site's geographic positioning and the mission profile to GEO means Long March-3B vehicles launched from there spend meaningful time transiting weather layers that can carry significant charge.

CASC did not release detailed telemetry indicating whether any onboard systems registered anomalous readings during or after the strike. The confirmation that the Tianlian II-06 satellite reached its intended orbit is the operative fact: whatever transient effects the strike may have induced, they did not compromise the mission.

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## Historical Context: Rockets and Lightning

The Long March-3B incident sits within a documented — if short — record of launch vehicles surviving lightning strikes.

**Apollo 12 (1969):** NASA's Saturn V carrying astronauts Charles "Pete" Conrad, Alan Bean, and Richard "Dick" Gordon was struck twice by lightning shortly after liftoff. A post-mission NASA report documented that some non-essential instruments and sensors experienced "permanent effects," but the vehicle continued to orbit and the crew landed on the Moon as planned. Apollo 12 was the second crewed lunar landing mission.

**Soyuz (2019):** A Russian Soyuz rocket was struck by lightning shortly after launch and still successfully placed its Glasnost communications satellite into orbit.

**Atlas/Centaur-67 (1987):** The record is not uniformly positive. A lightning strike on a United Launch Alliance Atlas/Centaur-67 vehicle caused a malfunction in the vehicle's guidance computers, which NASA reported ultimately caused the vehicle to break apart. That 1987 loss is the foundational incident that drove the development of NASA's Lightning Launch Commit Criteria (LLCC).

NASA's own technical documentation states: "Since Atlas/Centaur-67 and the rigorous implementation of the LLCC, no other launch vehicles have intercepted or triggered lightning on launch in the United States." The LLCC defines specific weather conditions — cloud types, electric field thresholds, and proximity to precipitation — that trigger launch delays.

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## What This Means for Chinese Launch Weather Standards

China's decision to proceed with the Long March-3B launch under conditions that allowed a strike raises legitimate operational questions. The absence of a publicly detailed Chinese equivalent to NASA's LLCC framework makes external assessment difficult. CASC has not commented on whether the strike was anticipated as a statistical risk within acceptable parameters, or whether it was an anomalous atmospheric event that developed after the launch window opened.

From a hardware resilience standpoint, modern launch vehicles carry hardened avionics designed to tolerate transient electromagnetic interference — but hardening specifications vary by design generation, and the Long March-3B is not a new vehicle architecture. The fact that the Tianlian II-06 reached GEO suggests the vehicle's systems, including upper stage ignition and guidance, functioned within acceptable bounds through the entire mission profile.

For satellite operators and launch customers evaluating Chinese launch services, the more relevant data point is the outcome: mission success. A single lightning strike event that ends in successful payload delivery is operationally unremarkable in terms of customer risk. What would be more informative is whether CASC conducts — and publishes — post-flight electromagnetic anomaly reviews of the kind NASA produced after Apollo 12.

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## Tianlian II-06 Mission Profile

The Tianlian II series constitutes China's data relay satellite network, positioned in GEO to provide continuous communication links to low-orbit assets including Tiangong. Relay satellites in GEO serve a function analogous to NASA's Tracking and Data Relay Satellite System (TDRS): they close the communication gap that ground stations alone cannot cover due to Earth's curvature.

Tianlian II-06 extends the capacity and redundancy of that relay layer. For Tiangong operations — which have included rotating crew rotations under the Shenzhou program — reliable relay connectivity is operationally critical. The satellite's successful insertion means China's crewed spaceflight communication architecture gains another node without interruption.

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## Key Takeaways

- A Long March-3B rocket was struck by lightning approximately **30 seconds after liftoff** from Xichang Satellite Launch Center on **July 23, 2026**
- CASC confirmed the **Tianlian II-06** communications relay satellite reached its intended **geostationary orbit** despite the strike
- Tianlian II-06 will support relay communications for **Tiangong Space Station** and other crewed missions
- Historical precedents include the **Apollo 12 Saturn V** (struck twice, mission succeeded) and a **Soyuz in 2019** (mission succeeded), versus **Atlas/Centaur-67 in 1987** (vehicle lost after guidance computer failure)
- The 1987 Atlas/Centaur-67 loss led NASA to develop its **Lightning Launch Commit Criteria (LLCC)**, which has prevented U.S. lightning strike incidents since implementation
- CASC has not publicly detailed its equivalent weather commit criteria or released post-flight anomaly data from this event

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## Frequently Asked Questions

**Was the Long March-3B damaged by the lightning strike?**
CASC confirmed the mission succeeded and the Tianlian II-06 satellite reached its intended geostationary orbit. No damage assessment or anomaly report has been publicly released. The mission outcome indicates no critical systems were compromised.

**How common is it for rockets to be struck by lightning at launch?**
It is rare but documented. Notable cases include NASA's Apollo 12 Saturn V (struck twice, 1969), a Russian Soyuz in 2019, and the United Launch Alliance Atlas/Centaur-67 in 1987, which was lost after the strike caused a guidance computer failure.

**What is NASA's Lightning Launch Commit Criteria?**
The LLCC is a set of weather-based rules NASA developed after the 1987 Atlas/Centaur-67 loss. It defines atmospheric conditions — including cloud types, electric field measurements, and precipitation proximity — that require a launch delay. NASA states no U.S. launch vehicles have intercepted or triggered lightning since the LLCC was implemented.

**What does the Tianlian II-06 satellite do?**
Tianlian II-06 is a communications relay satellite positioned in geostationary orbit. It relays communications between ground stations and low-orbiting assets, including China's Tiangong Space Station and crewed Shenzhou spacecraft, closing coverage gaps that ground stations alone cannot address.

**Does China have lightning launch rules equivalent to NASA's LLCC?**
China has not publicly detailed equivalent criteria. The fact that the Long March-3B launched under conditions that produced a lightning strike suggests either different risk thresholds or that the atmospheric discharge developed after the launch window was committed. CASC has not commented on its weather commit criteria for this mission.