RO-C-NAVCAM-3-ESC3-MTP020

Data Set history: First version Data Set Overview: The data from the Rosetta Navigation Camera (NavCam) were calibrated by Bernhard Geiger; the processing pipeline was implemented by Rafael Andres; the data set was constructed and submitted by Diego Fraga Agudo on behalf of the Planetary Science Archives (PSA). The data were acquired between 20150825 and 20150922. The frequency of navigation slots was one image every five hours, with interruption by manoeuvres. This resulted in 130 navigation images. In addition, 274 context and 3 calibration images were taken, which gives a total of 407 images. 2 navigation and 45 context images were not acquired due to spacecraft memory recovery activities. For one context image, rows were lost due to ground station problems. Initially, the spacecraft performed far flyby arcs at distances between 400km and 460km. From September 6th, the distance was reduced to ranges between 310km and 330km. The phase angle had a minimum of 70 degrees in the first part of the MTP, before transitioning to the night side with phase angles up to 120 degrees and returning to the terminator on September 16th. All images in this data set are radiometrically calibrated data taken using the imaging mode. The data set contains images using NavCam CAM1 onboard the Rosetta S/C. NavCam instrument contains a second identical camera called CAM2 but this was used mainly as a backup and the few images taken with it have not been calibrated and are not included in the Level 3 datasets. The images can be found in the DATA/CAM1 directory. For each image, the user can also find the FITS format of the observation in the EXTRAS/CAM1 dir truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]