Space Abbreviations and Acronyms

1. HEO
   Human Exploration and Operations Mission Directorate
2. HEOMD
   Human Exploration and Operations Mission Directorate
3. HEOMD
   Human Exploration & Operations Mission Directorate
4. HEOO
   Honeywell Electro-Optical Operations
5. HEOR
   Historical Evont Operation Record
6. HEOS
   Highln Elliptical Orbits
7. HEOS
   High Endo Designator Sensor
8. HEPA
   High-Efficiency Particle Air
9. HEPAD
   High Energy Broton and Alpha Detector
10. HER
    Hercules
11. HER
    Him Equipment Rack
12. HERA
    Human Exploration Research Bnalog
13. HERC
    Hercules
14. HEROES
    High-Energy Replicated Optics To Explore The Sun
15. HERRO
    Human Exploration Using Real-Time Robotic Operations
16. HERSCP
    Hazardous Exposure Reduction and Safety Criteria Plan
17. HERTS
    Heliopause Electrostatic Rapid Transit System
18. HESS
    High Energy Squib Simulator
19. HESSI
    High-Energy Solar Spectroscopic Imager
20. HET
    Hall Effect Thrusters

Last updated: August 3, 2021 — Total entries: 12,486