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 -21.1
Center Lon 56.3
Pixel Scale 0.80 m/px
# Images 4
Incidence High Sun

Images used, in order of layering from front to back:
Image ID Center Lat Center Lon Incidence Pixel Scale
M1133833903R -21.12 56.33 20° 0.83 m/px
M1133833903L -21.11 56.48 20° 0.83 m/px
M1133841012R -21.13 56.03 20° 0.84 m/px
M1133841012L -21.12 56.18 20° 0.85 m/px

Petavius B UV Anomaly high-Sun controlled NAC mosaic (A)

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