Thank you very much for visiting Gunter's Space Page. I hope that this site is useful and informative for you.
If you appreciate the information provided on this site, please consider supporting my work by making a simple and secure donation via PayPal. Please help to run the website and keep everything free of charge. Thank you very much.
HEAD 1, 2A, 2B, 2C, 2D, 2E, 2F, 3, 4, 5 (Hede 1, 2A, 2B, 2C, 2D, 2E, 2F, 3, 4, 5)
HEAD 1 [CAST]
HEAD or Hede are Chinese commercial satellites by HEAD Aerospace for their Skywalker constellation to provide data collection services and to track ships receiving their AIS (Automated Identification System) signals.
The three-axis stabilized satellites are built by SAST (Shanghai Academy of Spaceflight Technology) and features an high performance AIS-receiver being able to process 2 million AIS short messages per 24 hours and to identify 60000 ships. Future satellites will feature VEDS and ADS-B payloads for global ship detection and airplane monitoring services.
The Skywalker constellation is planned to consist of 48 satellite. 12 of them are to be in Sun-synchronous orbits, while the remainig 36 will form a Walker-δ constellation with 6 different orbital planes in 700 km 50° LEO with an orbit phase difference of 60°.
HEAD 1 was launched as a piggy-back payload on a CZ-4C sharing the ride with the main passenger FY 3D.
| Nation: | China |
|---|---|
| Type / Application: | Communication M2M/IoT, traffic monitoring |
| Operator: | HEAD Aerospace |
| Contractors: | SAST |
| Equipment: | high performance AIS-receiver |
| Configuration: | |
| Propulsion: | |
| Power: | 2 deployable solar arrays, batteries |
| Lifetime: | 2-3 years |
| Mass: | 45 kg |
| Orbit: | 796 km × 809 km, 98.65° (#1); 495 km × 511 km, 97.37° (#2A, 2B); 487 km × 502 km, 97.29° (#4); 484 km × 501 km, 97.32° (#5) |
| Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
|---|---|---|---|---|---|---|
| HEAD 1 (Hede 1) | 2017-072B | 14.11.2017 | TY LC-9 | CZ-4C | with FY 3D | |
| HEAD 2A (Hede 2A) | 2019-087A ? | 07.12.2019 | TY LC-16 | Kuaizhou-1A | with HEAD 2B, TY 16, TY 17, Tianqi 4A, Tianqi 4B | |
| HEAD 2B (Hede 2B) | 2019-087B ? | 07.12.2019 | TY LC-16 | Kuaizhou-1A | with HEAD 2A, TY 16, TY 17, Tianqi 4A, Tianqi 4B | |
| HEAD 2C (Hede 2C) | - | 202x | Jq LP-43/95B | Kuaizhou-1A | with HEAD 2D | |
| HEAD 2D (Hede 2D) | - | 202x | Jq LP-43/95B | Kuaizhou-1A | with HEAD 2C | |
| HEAD 2E (Hede 2E) | 2021-091E ? | 14.10.2021 | TY LC-9 | CZ-2D (2) | with CHASE (Xihe), QX 1, Tianshu 1, JTSY, HEAD 2F, Guidao Daqi Midu TSW, SSS 1, SSS 2A, Tianyuan 1, Jinzijing 2 | |
| HEAD 2F (Hede 2F) | 2021-091H ? | 14.10.2021 | TY LC-9 | CZ-2D (2) | with CHASE (Xihe), QX 1, Tianshu 1, JTSY, HEAD 2E, Guidao Daqi Midu TSW, SSS 1, SSS 2A, Tianyuan 1, Jinzijing 2 | |
| HEAD 2G (Hede 2G, Jiaotong 4) | 2022-090 | 04.08.2022 | TY LC-9 | CZ-4B | with TECIS (Guomang), Minhang Shaonian | |
| HEAD 2H (Hede 2H, Jiaotong 5) | 2022-167 | 09.12.2022 | @YS (Tai Rui) | Jielong-3 | with Jilin-1 Gaofen-03D-44, ..., 03D-50, Jilin-1 Pingtai-01A-01, Jinzijing 1-05, 1-06, Tianqi 07, Huoju 1, CAS 5A, CAS 5B? | |
| HEAD 3 (Hede 3) | - | 202x | with ? | |||
| HEAD 4 (Hede 4) | 2020-034A | 31.05.2020 | Jq LC-43/94 | CZ-2D (2) | with Gaofen 9-02 | |
| HEAD 5 (Hede 5) | 2020-039C | 17.06.2020 | Jq LC-43/94 | CZ-2D (2) | with Gaofen 9-03, ZDPS 3A |
References:
- HEAD Aerospace: HEAD-1
