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-consectutive 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.
| RDR Name | NAC_ROI_ALPHNSUSLOA_E129S3581 |
| Site Name | Alphonsus eastern vents |
| Center Lat | -12.9 |
| Center Lon | 358.1 |
| Pixel Scale | 0.90 m/px |
| # Images | 4 |
| Incidence | Low Sun |
Images used, in order of layering from front to back:
| Image ID | Center Lat | Center Lon | Incidence | Pixel Scale |
| M192967513R | -12.94 | 357.90 | 72° | 0.93 m/px |
| M192960364L | -12.94 | 358.36 | 73° | 0.95 m/px |
| M192960364R | -12.94 | 358.20 | 73° | 0.96 m/px |
| M192967513L | -12.94 | 358.05 | 72° | 0.93 m/px |
Alphonsus eastern vents low-Sun controlled NAC mosaic (A)
Mosaic (0.90 m/px) (click for more information)
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Lower Resolutions
