LROC Narrow Angle Camera (NAC) Data¶

Download a pair of LROC NAC Images¶

LRO NAC consists of two cameras (L and R); both capture image data at the same time.

Find images with the LROC Image Search (ASU). Search for

M104318871

and filter for EDR images, then download the left and right EDR images to your working folder: M104318871LE.img and M104318871RE.img. Only one image is needed for the following example.

Importing and processing LROC NAC images in ISIS¶

Convert each .img file to an ISIS .cub camera image, initialize the SPICE kernels, and perform radiometric calibration and echo correction.

Example

Import image to ISIS cube format with lrocnac2isis.

lronac2isis from = M104318871LE.IMG     to = M104318871LE.cub

Add SPICE data to the cube with spiceinit.
```
spiceinit   from = M104318871LE.cub
```

Radiometrically calibrate the cube with lronaccal.

lronaccal   from = M104318871LE.cub     to = M104318871LE.cal.cub

Echo Correction with lornacecho.

lronacecho  from = M104318871LE.cal.cub to = M104318871LE.cal.echo.cub

The obtained images can be inspected with qview.

Further NAC Processing Resources¶

Want to Keep Going?

Further processing, including photometric correction, map-projecting, and mosaicking.

NAC Processing Guide
Where Is That Crater?

Best practices for obtaining accurate coordinates from LROC NAC data.

Obtaining Accurate Coordinates