Raw image files are named Cnnnnnnn.IMQ, where 'nnnnnnn' is the FDS
count (without a decimal point) and "IMQ" indicates that the
file is a compressed image. Generally, for the Jupiter
encounter, images beginning with 1 are from Voyager 1 and those
beginning with 2 are from Voyager 2. Similarly, for the Saturn
encounter, images beginning with 3 are from Voyager 1 and those
beginning with 4 are from Voyager 2. The Voyager 2 FDS clock was
reset prior to the Uranus and the Neptune encounters. Consequently
the FDS counts, and therefore filenames, for these encounters
are numerically smaller than those for the Saturn encounter.
The images are stored in subdirectories named for the nominal
target of the observation. Many images contain more than one
target and some images missed their intended target, so the
directory structure provides nothing more than general guidance
about the contents of the images.
For details on the volume structure and file naming conventions,
please review a Voyager ISS AAREADME.TXT file (especially section 4).
This file (with minor header variations) appears in the root directory
of every volume.
Use OPUS, our versatile search
engine to find and retrieve specific Voyager ISS data products
using a wide range of criteria.
Search results are provided with thumbnail images for each
observation, and include options to download compressed raw images,
thumbnail images, tables of associated metadata, and if available
versions of the images in various stages of processing from
uncompressed raw images through fully calibrated and geometrically
corrected. User selected data files can be bundled as zip files
for easy downloading.
The table below gives direct online access to the individual volumes.
Clicking on the VOLUME_ID will take you to the root
directory of the volume.
To download an entire volume, right click on that
volume's "Compressed Volume" link in the second column.
The compressed volumes are provided in .tar.gz format. For
information on opening files of this type, click
Clicking on the corresponding "Browse" link will take you to
the browse directory for the specified volume. Most volumes
contain their own browse images. The exceptions are:
Browse images for VG_0001 & VG_0002 are on VG_0003.
Browse images for VG_0004 are on VG_0005.
Browse images for VG_0006 & VG_0007 are on VG_0008.
Browse images for VG_0009, VG_0010 & VG_0011 are on VG_0012.
Clicking on IMGINDEX.TAB will take you to the index file for that
volume. The index file is a twenty two column, ASCII table listing
each image on the volume along with some information extracted from
that image's label file. Descriptions of the columns can be found in
the INDEX.LBL file in the INDEX subdirectory on each volume.