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Sejong 1, 2, 3

Sejong 1 [Hancom]

Sejong 1 is a low-Earth orbiting satellite built and operated by Spire Global for Hancom InSpace Co.

Sejong 2 serves as an extension of Sejong-1, focusing on maritime, agricultural monitoring, and change detection, especially in urban areas.

Sejong 3 will be equipped with a hyperspectral camera (442 bands).

Nation: South Korea, USA
Type / Application: Earth Observation
Operator: Spire Global for Hancom InSpace Co.
Contractors: Spire Global (satellite)
Equipment:
Configuration: CubeSat (6U)
Propulsion:
Power: Solar cells, batteries
Lifetime:
Mass: 11 kg
Orbit:
Satellite COSPAR Date LS Launch Vehicle Remarks
Sejong 1 (SJSAT 1, Lemur-2 152, Lemur-2 Hancom-1) 2022-057J 25.05.2022 CC SLC-40 Falcon-9 v1.2 (Block 5) with Umbra 03, ICEYE X17, ..., X20, X24, uSat 28, ..., 31, GHGSat C3, C4, C5, Hawk 5A, 5B, 5C, CICERO-2 1, 2, Sherpa-AC 1, ION-SCV 006, Guardian 1, SBUDNIC, Vigoride 3, SelfieSat, FossaSat 2E7, ..., 2E13, Veery FS-1, Urdaneta-Armsat 1, Spark 2, AMS, CNCE 4, 5, Platform 1, BroncoSat 1, Foresail 1, Planetum 1, SPiN 1, Connecta T1.1, Centauri 5, Sejong 1, Lemur-2 153, ..., 156, VariSat 1C, PTD 3, CPOD A, B, OMD 1
Sejong 2 (Lemur-2 223, Lemur-2 Sejong-2) 2025-135BL 23.06.2025 Va SLC-4E Falcon-9 v1.2 (Block 5) with Nyx Mission Possible, W-Series 4, VanZyl 2, Capella 17, T1DES 1, Arvaker 2, 3, SkyBee A02, Lyra 3, ICEYE X52, ..., X57, IRIDE-MS2-HEO 2, ..., 6, 8, 9, GHGSat C12, C13, Startical IOD-2, ForgeStar 1, GRUS 3α, BIFROST, ElaraSat MMS1, EarthDaily 1, Pulsar 0, ION-SCV 018, Lemur-2 TBD1, TBD2, ION-SCV 020, Otter Pup 2, Hubble 4, 5, Hubble 6, 7, PADRE, BRO 18, AddCube, AE2a, AE3Va, ARCSTONE, Connecta-IoT 9, ..., 12, DUTHSat 2, Hyperfield 1B, MBIUS 1, SATMAR, Sejong 2, FossaSat 2E21, JACK 001, PARUS T2, QUICK, SATORO T3, TPA 1, Time Flies, UND-ROADS 1, 2, Good Ancestor Kilakila, HORIS 1, 2, RIDUSAT,
Sejong 3 (Lemur-2 247, Lemur-2 Sejong-3) 2026-067BU 30.03.2026 Va SLC-4E Falcon-9 v1.2 (Block 5) with Gravitas, FGN-100 d3, HotSat 2, W-Series 6, Vindlr 2.0.1, ..., 2.0.3, Capella 20, ICEYE X71, ..., X76, IRIDE-MS1-EAGLET2 9, ..., 16, uSat 53, 54, Hawk 14A, 14B, 14C, Garai B, SERT 3, Mimir 1, ION-SCV 019, Lusada 1, ..., 4, Vigoride 7, InspectorSat 1, R5 S10, SpaceVan 002, AEPEX, MARS 1A, 1B, Out Of The Box, Vireon 1, 2, SPOQC, BRO 19, Black Kite 2, ERMIS 3, Flylab 1, T.MicroSat 2, TORO 3, AE1a, AISSat 4, COSMO, Deloitte 2, 3, ERMIS 1, 2, Flylab 2, GEMS2-Amethyst, GENIEedge Atlas, Harbinger, Lilium 4, OptiSat, PARUS 6U1, Sharjah-Sat 2, Io 1, DISCO 2, FossaSat 2E25, Ghostrider, JACK 002, PeakSat, SAL-E, AiglonSat 1, Emisar, TechEdSat 23, Dream Big 1, ..., 6, Unicorn 2R, 2S, SpinnyONE, Decimal-Sat 1, VegaFly 1, FEMTO 1, HelloWorld 1, Lemur-2 247, ..., 253, LUNA 2, PHOBOS, SM 1.2 ?, TROOP F3

Launch Sites:

  • CC =   Cape Canaveral Space Force Station, Eastern Test Range, Cape Canaveral, Florida, USA   USA
  • Va =   Vandenberg Space Force Base, California, USA   USA

References:

Further Sejong missions:
Further Lemur missions: Hosted payloads on dedicated Lemur satellites:

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Last update: 31.07.2026
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