Title | Acronym | Contact Person | Center | Aircraft | Type | Measurements | Measurement Range | Measurement Instrument Pointing | Measurement Frequency | Measurement Swath Width | Measurement Horizontal Resolution | Measurement Vertical Resolution | Measurement Wavelengths | Measurement Notes |
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Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research | 4STAR | Meloe S. Kacenelenbogen (Co-I) | NASA ARC | P-3 Orion - WFF, C-130H - WFF, Convair 580 NRC, Gulfstream G-1 (DOE), DC-8 - AFRC | Spectrometer | NO2, O3, H2O, Spectral Aerosol Optical Depth, Aerosol Extinction Angstrom Exponent, Aerosol Single Scattering Albedo, Aerosol Asymmetry Parameter, Aerosol Scattering phase function, Aerosol Size Distribution, Aerosol Complex Refractive Index, Cloud Optical Depth, Cloud droplet effective radius, Cloud Thermodynamic Phase, Cloud Liquid Water Content | Vertical profile
| Zenith (directly upwards), Upwards pointing but not directly upwards, Solar tracking (angles: The instrument can be pointed continuously around the full azimuth and over 270 degrees in elevation )
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