RO-C-NAVCAM-3-EXT2-MTP029

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 20160503 and 20160531. The frequency of navigation slots was one 2x2 raster every five hours, with interruption by manoeuvres. 502 navigation images were taken. In addition, 38 context and 5 calibration images were acquired, which gives a total of 545 images. 6 navigation images were lost due to ground station issues. 6 navigation rasters (24 images) were not acquired after the safe mode on 28th May 2016. For 7 navigation images, rows were lost due to ground station problems. At the beginning of the period the spacecraft was in bound 19X10km elliptical orbits in the terminator plane. It then moved to 10km circular orbits before further reducing the distance to 7km from the nucleus centre. At the end of the period the orbiter started a transition to a mapping orbit at 17km. 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]