Space history on February 23

8 events

1. 1956 70 years ago solar science

   Large solar cosmic-ray enhancement detected

   Ground-based instruments registered an exceptionally large increase in solar energetic particles.

   • NASA HEASARC — 1900–1959 (opens in a new tab) — Factual summary; source attribution retained.

2. 1999 27 years ago launch

   ARGOS — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: ARGOS

   • Space transportation

   Delta 7920-10 launched on the ARGOS flight from Vandenberg AFB, California, pad SLC2W. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

3. 2002 24 years ago launch

   Intelsat 904 — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: Intelsat 904

   • Space transportation

   Ariane 44L (44L-3) launched on the Intelsat 904 flight from Centre Spatial Guyanais, Kourou, Guyane Francaise, pad ELA2. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

4. 2008 18 years ago launch

   WINDS — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: WINDS

   • Space transportation

   H-IIA 2024 (1) launched on the WINDS flight from Tanegashima Space Center, Tanegashima, Nippon, pad Y. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

5. 2023 3 years ago launch

   Zhongxing 26 — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: Zhongxing 26

   • Space transportation

   Chang Zheng 3B (G2) launched on the Zhongxing 26 flight from Xichang Space Center (Songlin), Sichuan, China, pad LC2. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

6. 2024 2 years ago launch

   Starlink-142 — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: Starlink-142

   • Space transportation

   Falcon 9 (FT5) launched on the Starlink-142 flight from South Base, Vandenberg Space Force Base, California, pad SLC4E. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

7. 2024 2 years ago launch

   TJS 11 — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: TJS 11

   • Space transportation

   Chang Zheng 5 launched on the TJS 11 flight from Wenchang Space Center, Hainan, pad LC101. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.

8. 2025 1 year ago launch

   Starlink-239 — launch

   Category: Launches and Flight Tests › Type: Orbital launch

   Mission: Starlink-239

   • Space transportation

   Falcon 9 (FT5) launched on the Starlink-239 flight from South Base, Vandenberg Space Force Base, California, pad SLC4E. Launch vehicle success.

   • Jonathan McDowell — General Catalog of Artificial Space Objects (opens in a new tab) — Data from GCAT (J. McDowell, planet4589.org/space/gcat), CC BY 4.0. Adapted into anniversary records.