Control Network for Ganymede Images from JunoCam Perijove 34

Delivered is a photogrammetric control network for four images of Ganymede collected by the Juno- Cam instrument during the Juno mission’s perijove 34 encounter on 2021-06-07. The network has 184,659 control points and 369,318 control measures (2 measures per control point). The network is a PVL formatted text file for use in ISIS (Integrated Software for Imagers and Spectrometers). When control points are merged with an image distance tolerance of 1.0 pixel the resulting network has 83,096 control points and 233,598 control measures. Extracting control points with 4 or more measures yields a network with 16,709 control points and 75,197 control measures.

The initial network is produced with novel code implemented in Mathematica.

In the “Initial Network” 98% of residuals are less than 1.72 pixels. Median residual is .40 pixels. There are 54 control points with residuals greater than 3 pixels, and 1544 with greater than 2.

See ControlNetworkJunoCamV16j.pdf for details.