RO-C-NAVCAM-3-ESC3-MTP019

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 20150728 and 20150825. The frequency of navigation slots was one image every five hours, with interruption by manoeuvres. This resulted in 131 navigation images. In addition, 303 context and 5 calibration images were taken, which gives a total of 439 images. One navigation image was lost due to bad weather. For the same reason there were lost rows in another navigation image. One context image was not acquired due to the recovery of an anomaly and for three context images rows were lost due to ground station problems and bad weather. The spacecraft performed far flyby arcs in the terminator plane. Reacting to issues with the star trackers, the distance was increased from 180km to 330km. At the transition to lower phase angles the distance increased further to 420km. 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 directory. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]