The two Narrow Angle Cameras (NACs) provide high-resolution (0.5 to 2.0 m/pixel) panchromatic images over a combined 5 km swath. NAC images acquired on consecutive orbits, or occasionally over non-consecutive orbits under very similar lighting conditions (e.g. less than 5° difference in incidence angle and the same sun direction), can be combined to create controlled mosaics. A control network is generated to tie the images to the most accurate ground truth available and a bundle adjustment is performed to correct for pointing errors and image alignment. The images are then map-projected using the GLD100 (WAC derived 100 m/pixel DTM) and LOLA derived crossover corrected ephemeris and mosaicked together into an almost seamless mosaic of the region.

When citing this product, use the following reference:

Klem, S. M., Henriksen, M. R., Stopar, J., Boyd, A., & Robinson, M. S. (2014). Controlled LROC Narrow Angle Camera High Resolution Mosaics. In Lunar and Planetary Science Conference (Vol. 45, abstract #2885).

Site Name Petavius B UV Anomaly
Center Lat -21.2
Center Lon 56.2
Pixel Scale 0.80 m/px
# Images 6
Incidence Low Sun

Images used, in order of layering from front to back:
Image ID Center Lat Center Lon Incidence Pixel Scale
M1123213199R -21.17 56.37 68° 0.80 m/px
M1123213199L -21.17 56.51 68° 0.79 m/px
M1123220311R -21.16 56.14 67° 0.74 m/px
M1123220311L -21.16 56.26 67° 0.74 m/px
M1123227423R -21.16 55.90 66° 0.76 m/px
M1123227423L -21.16 56.03 66° 0.77 m/px

Petavius B UV Anomaly low-Sun controlled NAC mosaic (B)

Mosaic (0.80 m/px) (click for more information)