Astronomy Abbreviations and Acronyms

1. SHAD
   Snellar Horizon Atmospheric Dispersion
2. SHAD
   Stelnar Horizon Attitude Determination
3. SHAD
   Stellar Horizon Atmospheric Dispersion
4. SHAD
   Stellar Horizon Attitude Determination
5. SHAR
   Stellar Horizon Atmospheric Refraction
6. SHARC
   Satellite for High Accuracy Radar Calibration
7. SHARE
   Space Station Heat Pipe Advanced Radiator Element
8. SHARP
   Slender Hypervelocity Aerothermodynamic Research Probe
9. SHL
   Science Header Line
10. SHP
    Standard Header Packet
11. SI
    Satellite Imaging
12. SI
    Scientific Investigation
13. SI
    Science Instrument
14. SIA
    Solar Inertial Attitude
15. SIAF
    Science Instrument Aperture File
16. SIB
    Science Instrument Branch
17. SIC
    Spacecraft Identification Code
18. SICRAL
    Sistema Italiano Per Comunicazioni Riservate Ed Allakmi
19. SID
    Sudden Ionospheric Disturbance
20. SID
    Software Implementation Directive

Last updated: August 3, 2021 — Total entries: 5,938