## Did CAS Space's Lijian-1 Y18 Successfully Deliver 9 Satellites on September 20?

Yes. CAS Space's Lijian-1 Y18 carrier rocket lifted off at 12:03 p.m. local time on September 20, 2026, from the Dongfeng Commercial Aerospace Innovation Test Zone, precisely delivering nine satellites into their designated [Low Earth Orbit (LEO)](https://orbital-intel.com/glossary/leo) insertion orbits in what the company called a "one rocket, nine satellites" configuration. This was the 16th flight of the Lijian-1 launch vehicle and the mission was declared a complete success.

The payload manifest is notable for its thematic coherence: multiple satellites explicitly prioritize on-orbit AI computing as a primary capability, not a secondary feature. The headlining payloads are the Super AI Computing-1 satellite — carrying a 4-meter visible light camera and an AI computer for on-orbit image processing and target recognition — and the Pengcheng First Satellite (PEGA-SUS1), a 150-kilogram platform co-developed by GalaxySpace, Peng Cheng Laboratory, and Southern University of Science and Technology. PEGA-SUS1 integrates a 3GPP-standard 5G NTN communications payload, a 100Gbps satellite-to-ground laser communications link, and an on-board AI computing payload on a single bus — a combination its developers describe as a technical foundation for 6G network architecture.

CAS Space simultaneously announced it has scaled annual Lijian-1 production capacity to 30 rockets and is preparing for its first sea launch from waters near Guangdong province.

---

## The Payloads: On-Orbit Computing Takes Center Stage

The Super AI Computing-1 satellite was developed under the leadership of Super AI Computing (Beijing) Technology Co., Ltd. Its dual primary payloads — a 4-meter visible light camera and an AI computer — enable the satellite to autonomously acquire optical remote sensing imagery, process it on-board, and extract target information without downlinking raw data first. According to its developers, the satellite targets applications including smart cities, natural resource surveying, precision agriculture, ecological monitoring, and emergency disaster response. It also serves as a technology verification platform for real-time on-orbit computing.

This architecture — sensing fused directly with compute at the satellite level — represents a meaningful engineering shift. Traditional Earth observation satellites generate enormous volumes of raw imagery that must be downlinked, processed on the ground, and then acted upon, introducing latency that is problematic for time-sensitive applications like disaster response or maritime domain awareness. Moving the inference workload on-board compresses that pipeline significantly, though the practical throughput and latency gains relative to ground-processing chains remain to be demonstrated operationally.

---

## PEGA-SUS1: China's First Integrated 5G NTN, AI, and 100Gbps Laser Platform

The Pengcheng First Satellite (PEGA-SUS1) is the mission's most technically ambitious payload. At 150 kilograms, it integrates on a single platform:

- A **3GPP-standard 5G NTN communications payload** (base station and core network)
- A **100Gbps satellite-to-ground laser communications link**
- A **digital retina on-board AI computing payload**

Ren Jiadong, deputy director of GalaxySpace's satellite systems technology department, described the satellite's core concept as moving the "brain" of a 5G network — the core network — from ground-based server rooms into orbit. After the remote sensing payload captures imagery, on-board AI performs target detection and identification, loads the processed content into the satellite's core network, and makes it accessible to ground users via [Ka-band](https://orbital-intel.com/glossary/ka-band) terminals — without requiring a separate ground processing step.

The stated design philosophy is "multi-purpose single satellite, functional integration," pushing satellites toward what the developers call "spatial information super-nodes" combining communications, sensing, computing, and intelligent processing.

**Analyst note:** The 100Gbps laser link figure is as reported by the developers and represents a claimed specification, not yet operationally verified throughput. The integration of a full 5G core network on a 150-kilogram satellite is technically aggressive; the satellite's primary value in the near term is as a technology demonstrator validating these integration approaches before they propagate into production constellations. GalaxySpace's commercial megaconstellation ambitions make this a strategically significant test bed.

---

## The Broader Manifest

Beyond the AI-computing headliners, the Y18 mission delivered several additional payloads:

- **Pujiang-4**: Developed by the Shanghai Institute of Satellite Engineering
- **Qinling Satellite 01 and 02**: Developed by Northwestern Polytechnical University; approved by the Shaanxi provincial government; primary payloads are high-resolution panchromatic + multispectral cameras focused on ecological protection and development monitoring in the Qinling Mountains and Yellow River regions
- **Yunxiao Pathfinder**: Developed by the Institute of Mechanics of the Chinese Academy of Sciences
- **Diting-01 Group A/B/C**: The first [satellite constellation](https://orbital-intel.com/glossary/constellation) group of the Diting Constellation, developed and operated by Tianjin Xingkan Jiuzhou Technology Co., Ltd.

The mission's stated primary objectives covered space environment monitoring, disaster prevention and mitigation, and scientific experiments — a typical secondary-payload mix that provides commercial revenue to offset launch costs while the headline payloads carry the technology demonstration mandate.

---

## CAS Space's Production and Sea-Launch Expansion

CAS Space disclosed two operationally significant capacity developments alongside this launch:

1. **Annual Lijian-1 production capacity has reached 30 rockets per year** — a figure that, if sustained, would place CAS Space among the higher-volume commercial launch providers in the Chinese market.
2. **A maritime launch from waters near Guangdong province is in preparation**, marking CAS Space's first sea-launch attempt. Sea launches expand accessible inclination ranges without requiring costly range infrastructure, and Guangdong's southern latitude provides better geometry for equatorial and low-inclination orbits than inland sites like Dongfeng.

At 16 flights, Lijian-1 has accumulated a meaningful operational record. The 30-rocket annual production target suggests CAS Space is positioning for the high-cadence rideshare and small constellation deployment market that has driven volume growth for other Chinese commercial launch providers.

---

## Industry Trajectory: The Compute-at-the-Edge Satellite Thesis

What this mission collectively signals is acceleration of a design thesis that has been building across the global satellite industry: the satellite as an edge compute node, not just a passive relay or sensor. Moving AI inference on-board reduces downlink bandwidth requirements, cuts latency for actionable intelligence, and enables autonomous tasking — all commercially valuable properties.

The [Direct-to-Device (D2D)](https://orbital-intel.com/glossary/direct-to-device) and 5G NTN angle adds another dimension. If PEGA-SUS1's integration of a full 5G core network on a single satellite platform proves reliable, it validates a path toward satellite constellations that can serve as mobile network nodes without heavy ground infrastructure — relevant for both enterprise connectivity in underserved regions and defense applications requiring resilient communications.

Chinese commercial space operators are clearly treating on-orbit computing not as a future roadmap item but as an active deployment priority. Western operators and investors should take note: the pace of technology verification missions in this segment is accelerating.

---

## Key Takeaways

- **Lijian-1 Y18 successfully delivered 9 satellites on September 20, 2026**, marking the vehicle's 16th flight from the Dongfeng Commercial Aerospace Innovation Test Zone.
- **Multiple payloads explicitly prioritize on-orbit AI computing**, led by Super AI Computing-1 (4-meter camera + AI processor) and PEGA-SUS1 (150 kg, 100Gbps laser link, 5G NTN core network, on-board AI).
- **PEGA-SUS1** is described by its developers as China's first satellite to combine a 5G NTN base station, core network, on-board AI computing, and satellite-to-ground laser communications on a single platform.
- **CAS Space has scaled Lijian-1 production to 30 rockets per year** and is preparing its first maritime launch near Guangdong province.
- **The broader payload manifest** includes Qinling 01/02 (Northwestern Polytechnical University), Pujiang-4 (Shanghai Institute of Satellite Engineering), Yunxiao Pathfinder (CAS Institute of Mechanics), and Diting-01 Group A/B/C (Tianjin Xingkan Jiuzhou Technology).
- **Analyst caution:** Claimed specifications — particularly the 100Gbps laser link and full 5G core network in orbit — are developer-reported figures requiring independent operational validation.

---

## Frequently Asked Questions

**What is the Lijian-1 Y18 mission?**
Lijian-1 Y18 is the 18th launch vehicle in CAS Space's Lijian-1 series and the 16th Lijian-1 flight overall. It launched on September 20, 2026, carrying nine satellites from the Dongfeng Commercial Aerospace Innovation Test Zone in China.

**What is the Pengcheng First Satellite (PEGA-SUS1)?**
PEGA-SUS1 is a 150-kilogram technology demonstration satellite co-developed by GalaxySpace, Peng Cheng Laboratory, and Southern University of Science and Technology. It integrates a 3GPP-standard 5G NTN base station and core network, a 100Gbps satellite-to-ground laser communications link, and an on-board AI computing payload on a single platform — described as China's first satellite to combine all these capabilities simultaneously.

**How does on-orbit AI computing change Earth observation satellites?**
By processing imagery on-board rather than downlinking raw data, satellites with on-orbit AI can extract actionable intelligence (target identification, change detection) faster, reduce downlink bandwidth requirements, and enable autonomous tasking — compressing the pipeline from image capture to usable information from hours to near-real-time.

**What is CAS Space's current production rate for Lijian-1?**
According to CAS Space, annual Lijian-1 production capacity has reached 30 rockets per year. The company is also preparing for its first maritime launch from waters near Guangdong province.

**What other satellites flew on this mission?**
The manifest included Pujiang-4 (Shanghai Institute of Satellite Engineering), Qinling Satellite 01 and 02 (Northwestern Polytechnical University, focused on Qinling Mountains and Yellow River ecological monitoring), Yunxiao Pathfinder (CAS Institute of Mechanics), and the Diting-01 Group A/B/C satellites (Tianjin Xingkan Jiuzhou Technology), the first group of the Diting Constellation.