Data Set Overview : There are multiple methods of performing radiometric correction, distinguished by the RADIOMETRIC_CORRECTION_TYPE keyword. The most  common are TAMCAL, RACCAL, MIPLRAD, MIPLRAD2, and MIPLRAD3. 1. Radiance-calibrated RDRs ('RAD', 'RAL') The non-linearized RDRs are generated from EDRs. They have all of the major instrumental/environmental calibrations applied, such as bias removal, dark current removal, electronic shutter smear effect removal, flat field correction, and bad pixel repair. Then they have been scaled to absolute radiance units using pre-flight radiometric calibration coefficients. The units on these files are (W/m^2/nm/sr). 2. RACCAL Method (RAC Team) This refers to radiometric correction of RAC and OM instrument data only, performed by the RAC instrument team (MPS) using the RACCAL software  suite. It is the most precise correction method applicable to RAC and OM  data. The RAC/OM calibration steps performed by the RACSoft package are described below: 1. The bad pixel step removal replaces a number of pixels marked bad because of dust grains on the CCD or hot electron production. The bad pixels are replaced by an interpolated value based on the surrounding pixels. 2. The bias subtraction step subtracts the ADC digital offset from the image. 3. The image is converted to DN/s 4. The RAC and the OM uses an electronic shutter where the image data is fast clocked to a covered area of the CCD at the end of the exposure followed by a slower digitization of the image data. During the fast clocking each row experiences some additional light from other parts of the scene. The electronic shutter correction subtracts from row N the summed DN signal of row 0 to N-1 scaled by the time it takes to clock a row one step on the CCD. 5. The dark current correction step subtracts an estimated mean value of dark current based on the temperature of the CCD. This simple scheme (as compared to the SSI) is used because the RAC and OM has very low dark current production under Mars conditions. 6. The flatfield correction divide the image by the relevant flatfield for the given focus motor step (RAC). 7. The OM calibration is finished after the flat field correction since good absolute calibration data is not available for the OM. 8. The final step of the RAC calibration is to divide the image by the absolute calibration constant for the given focus motor step. The calibration constant is given by the ground absolute calibration at focus motor step 306 (near infinite focus) and a correction factor derived for the change in instantaneous field of view between focus step 306 and the active focus step. Processing : Phoenix RAC RDRs are considered CODMAC Level 3 (Calibrated Data equivalent to NASA Level 1-A), Level 4 (Resampled Data equivalent to NASA Level 1-B), or Level 5 (Derived Data equivalent to NASA Level 1-C, 2 or 3). The RDRs are to be reconstructed from Level 2 edited data, and are to be assembled into complete images that may include radiometric and/or geometric correction. Phoenix RAC instrument EDRs and RDRs will be generated by JPL's Multimission Instrument Processing Laboratory (MIPL) as part of the OPGS subsystem of the Phoenix GDS. RDRs will also be generated by the RAC science instrument team at the SOC facility at the University of Arizona, as well as at its home institution, Max Planck  Institute for Solar System Research. RDR data products will be generated by, but not limited to, MIPL using the Mars Suite of VICAR image processing software at JPL, and the RAC science instrument team using RACCAL software at the SOC facility at the University of Arizona and at the team's home institution at Max Planck Institute for Solar System Research. The RDRs produced will be 'processed' data. The input will be one or more  Camera EDR or RDR data products and the output will be formatted  according to the data product SIS [ALEXANDERETAL2008]. Additional  meta-data may be added by the software to the PDS label. Data : RDR products generated by MIPL will have a VICAR label wrapped by a PDS label, and their structure can include the optional EOL label after the binary data. RDR products not generated by MIPL may contain only a PDS label. Or, RDR products conforming to a standard other than PDS, such as JPEG compressed or certain Terrain products, are acceptable without a PDS header during mission operations, but may not be archivable. The RDR data product is comprised of radiometrically decalibrated and/or camera model corrected and/or geometrically altered versions of the raw camera data, in both single and multi-frame (mosaic) form. Most RDR data products will have PDS labels, or if generated by MIPL (OPGS), dual PDS/VICAR labels. Non-labeled RDRs include JPEG compressed products and the Terrain products. Software : The RACCal software pipeline was used to generate the RDR's included in  this dataset. Media/Format : The data set will initially be delivered and kept online. Upon Mission completion, the RAC Operations RDRs will be delivered to PDS  on DVD.

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