THEOS-2

THEOS-2

Mission type	Earth Observation
Operator	GISTDA
COSPAR ID	2023-155A
SATCAT no.	58016
Spacecraft properties
Manufacturer	Airbus Defence and Space
Start of mission
Launch date	9 October 2023
Rocket	Vega
Launch site	Guiana Space Centre
Contractor	Arianespace
Orbital parameters
Reference system	Geocentric
Regime	Sun-synchronous, LEO
Eccentricity	≈0

THEOS-2 (Thailand Earth Observation System-2), is a Thai Earth observation satellite. The satellite would be capable of observing Earth's surface with a resolution of up to 50cm, and covering about 74,000 square kilometers per day. ^[1] THEOS-2 was launched by a Vega rocket from Guiana Space Centre in French Guiana on 9 October 2023. ^{[2] [3] [4]}

The THEOS-2A small satellite, lost in the PSLV-C62 launch accident in 2026, ^[5] was planned to be part of the GISTDA's Development Survey Satellite System Project (โครงการระบบดาวเทียมสำรวจเพื่อการพัฒนา) together with THEOS-2. ^{[6] [7]} Following THEOS-2, Thailand intends to build the THEOS-3 satellite completely domestically. ^[8]

References

1. "Thailand to launch its second Earth satellite next week". Thai Public Broadcasting Service . September 28, 2023. Retrieved 2023-10-06.
2. เปิดนาทีประวัติศาสตร์ ปล่อยดาวเทียมสัญชาติไทย "THEOS-2" ขึ้นสู่อวกาศแล้ว
3. ปล่อยแล้ว 'ดาวเทียมธีออส 2' ขึ้นสู่วงโคจร ชมสด ภารกิจครั้งประวัติศาสตร์
4. "The launch of Arianespace Flight VV23 is a smallsat deployment success". Satnews. Retrieved 9 October 2023.
5. "GISTDA: THEOS-2A launch fails after PSLV technical issue". nationthailand. 2026-01-13. Retrieved 2026-01-13.
6. "Earth observation satellite update 2022". GISTDA . Retrieved 2023-10-06.
7. "ไทยส่ง 'THEOS-2' ไปอวกาศ7ต.ค.นี้-เป็นดาวเทียมสำรวจโลกรายละเอียดสูง" (in Thai). Civilian Security Organization. 27 September 2023. Retrieved 2023-10-06.
8. "2 satellites under Thailand's Theos-2 project ready to take off". The Nation . August 13, 2023. Retrieved 2023-10-06.

External links

• THEOS-2