On Feb 22-23, 2017, the LASP instrument teams hosted a 2-day workshop on TIM and SIM measurement principles, TRF and SRF operation and calibration, and instrument validation and verification. 

TIM/SIM TRF/SRF Workshop

Attendees

GSFC: Dong Wu Doug Rabin Jae Lee, Jim Butler, Sergey Krimchansky, Harry Stello, 

NIST, Gaithersburg: Joe Rice
NIST, Boulder: John Lehman, Michelle Stephens 

LASP: Erik Richard, Dave Harber, Ginger Drake, Karl Heuerman, Paul Smith
Tom Woods, Andrew Jones

Topics

I.    TIM and SIM measurement system principles
-    Power and area
-    Electrical substitution; phase-sensitive detection; non-equivalence (TIM & SIM ESR)
-    Dispersion & wavelength stability (SIM)
-    Photo-voltaics (SIM)
-    Long term stability and redundant channel instrument architectures

II.    TIM  instrument equation
-    Instrument overview TIM 
-    TIM Characterizations & Calibrations (component and system level) and analysis
-    Error budget
•    Establish an uncertainty budget and verify component/system-level compliance
•    Characterize over full range of operational envelope (thermal, FOV, pointing)
•    Quantify and correct systematic biases

III.    SIM instrument equation
-    Instrument overview SIM 
-    SIM Characterizations & Calibrations (component and system level) and analysis
-    Error budget
•    Establish an uncertainty budget and verify component/system-level compliance
•    Characterize over full range of operational envelope (thermal, FOV, pointing)
•    Quantify and correct systematic biases

IV.    Validation and verification (Instrument Level)
-    Facilities overview and methodology (general)
•    Does not rely on absolute-scale of source radiance
•    Can take advantage of laser-based source with high long-term wavelength, intensity, and polarization stability
-    Utilizes detectors whose calibration scale is traceable to a detector (primary) standard

Facilities Specifics (Irradiance mode)

-    TRF  
-    SRF (Detector/aperture [Watt, meter] traceability, source control & stability [intensity, wavelength], full spectral radiometric model refinement-instrument level systematic)  
-    Comparisons and interpretation