## 2 Calibration Status of Landsat 8 Operational Land Imager (OLI)  
### Sensor Description  
The Operational Land Imager (OLI) is the solar reflective imager on Landsat-8. OLI is described in detail in [PERSON] and Kvaran [3]. Key characteristics of OLI and Sentinel 2A Multi-Spectral Instrument (MSI) are given in Table 2. Differences in SNR between the two sensors are also a function of Instantaneous Field of View (IFOV), i.e., larger IFOV will lead to greater SNR with all other factors being equal.  
OLI uses a four-mirror anastigmatic telescope to image at the focal plane. The focal plane consists of 14 focal plane modules (FPMs), each containing 494 detectors per multispectral band and 988 detectors in the panchromatic band. In front of the telescope sits the radiometric calibration subsystem, consisting of a shutter wheel, a diffuser wheel with two deployable Spectralon solar diffusers and two lamp assemblies containing multiple lamps.  
\begin{table}
\begin{tabular}{c c c} \hline \hline
**Panel Member** & **Affiliation** & **Expertise** \\ \hline [PERSON] & NASA & Landsat Prelaunch Radiometric Calibration \\ [PERSON] & USGS EROS & Landsat On-Orbit Radiometric Calibration \\ [PERSON] & SGT/USERS EROS & Landsat Geometric Calibration \\ [PERSON] & ACRI/ESA & Sentinel 2 Geometric Calibration \\ [PERSON] & ESA & Sentinel 2 Quality Assurance \\ [PERSON] & CS-SI/ESA & Sentinel 2 Radiometric Calibration \\ [PERSON] & Geoscience Australia & International Data Quality Requirements \\ [PERSON] & NASA & Harmonized Landsat and Sentinel Data \\ [PERSON] & SSAI/NASA GSFC & Water applications of Landsat and Sentinel 2 \\ [PERSON] & SDSU & Burned Area Mapping \\ \hline \hline \end{tabular}
\end{table}
Table 1: List of workshop panel members, their affiliation and expertise.  
\begin{table}
\begin{tabular}{c c c c c c c c c c c c} \hline \hline  & \multirow{2}{*}{**Band Number**} & \multicolumn{3}{c}{**Center Wavelength**} & \multicolumn{3}{c}{**Bandwidth**} & \multicolumn{3}{c}{**SNR @ MSI Ref**} \\  & & **(Average Measured)** & & **(Average Measured)** & & \multicolumn{3}{c}{**IFOV (Nominal)**} & \multicolumn{3}{c}{**Radiance**} \\  & & **(mm)** & & **(mm)** & & & **(mm)** & & **(Average Measured)** \\ \cline{2-10}  & **OLI** & **MSI** & **OLI** & **MSI** & **OLI** & **MSI** & **OLI** & **MSI** & **OLI** & **MSI** \\ \hline
**Deep Blue** & 1 & 1 & 443 & 443 & 16 & 20 & 30 & 60 & 500 & 1365 \\
**Blue** & 2 & 2 & 482 & 492 & 60 & 65 & 30 & 10 & 880 & 211 \\
**Green** & 3 & 3 & 561 & 560 & 57 & 35 & 30 & 10 & 940 & 239 \\
**Red** & 4 & 4 & 655 & 664 & 37 & 30 & 30 & 10 & 780 & 222 \\
**Red Edge** & 5 & 704 & 14 & 20 & & 247 \\
**Red Edge** & & 6 & 740 & 14 & 20 & & 216 \\
**Red Edge** & 7 & & 783 & & 19 & 20 & & 224 \\
**NIR** & (5) * & 8 & (865) & 835 & (28) & 105 & (30) & 10 & (540) & 217 \\
**NIR** & 5 & 8a & 865 & 865 & 28 & 20 & 30 & 20 & 540 & 158 \\
**Water Vapor** & & 9 & 945 & & 19 & 60 & 223 \\
**Cirrus** & 9 & 10 & 1373 & 1374 & 20 & 30 & 30 & 60 & 160 & 390 \\
**SWIR-1** & 6 & 11 & 1609 & 1613 & 85 & 90 & 30 & 20 & 260 & 159 \\
**SWIR-2** & 7 & 12 & 2201 & 2200 & 187 & 174 & 30 & 20 & 330 & 167 \\
**Pan** & 8 & 590 & & 172 & & 15 & & & \\ \hline \hline \end{tabular}
\end{table}
Table 2: Salient characteristics of Landsat-8 Operational Land Imager (OLI) and Sentinel 2A.