COLLECTION NAME:
David Rumsey Historical Map Collection
Record
Author:
USGS Astrogeology Science Center
Date:
2012
Short Title:
Jupiter Io Galileo SSI Global Color Merge Mosaic 1km v1
Publisher:
USGS Astrogeology Science Center
Publisher Location:
Flagstaff
Type:
Aerial Photograph
Region:
Jupiter
Region:
Io
Subject:
Celestial
Subject:
Space
Full Title:
Jupiter Io Galileo SSI Global Color Merge Mosaic 1km v1
List No:
10607.000
Publication Author:
USGS Astrogeology Science Center
Pub Date:
2012
Pub Title:
Jupiter Io Galileo SSI Global Color Merge Mosaic 1km v1
Pub Note:
This global false color mosaic was constructed from low phase angle violet, green, and near-infrared (756 nanometer) images from orbits G2, E6, C9, and C21 of the Galileo spacecraft and its Solid-State Imaging (SSI) camera. The images were calibrated using the best end-of-mission calibration information, corrected empirically for limb-darkening, and map projected using the camera-pointing corrections of Archinal et al. (2001). The co-registered color images were next hand-edited to remove topographic shadows and pixels too near the limb, and mosaicked using a numerical procedure that reduces the mismatch at the seams. This mosaic represents our best understanding of Io's color as pictured during the Galileo Mission. The true colors that would be visible to the eye are similar but much more muted than shown here. The spatial resolution of the mosaic ranges from 1.3 to 21 kilometers per pixel (km) at the equator, with the poorest resolution on the Jupiter-facing hemisphere of Io. Mission and Instrument Information: Galileo launched on October 18, 1989 from the Kennedy Space Center in Florida aboard the space shuttle Atlantis with the aim to study Jupiter and its moons. It arrived at Jupiter on December 7th, 1995 and ended when the spacecraft entered Jupiter’s atmosphere on September 21, 2003. Galileo made seven flybys of Io during its fourteen-year mission in the Jovian system. Galileo's Solid-State Imaging (SSI) experiment was designed to study Jupiter and it’s satellites using multi-spectral, high-resolution, charge-coupled device (CCD) camera. The camera was operated in eight filtered band passes from 350-1100nm, the eight-position filter wheel consisted of three broad-band filters: violet(404nm), green(559nm), and red(671nm). The broad-band filters allowed for the reconstruction of visible color photographs. The use of a CCD permitted the SSI to have an image geometry which was independent of brightness gradients, greater sensitivity to incident photons, and a wider spectral range than any camera previously flown on a planetary mission.
Pub List No:
10607.000
Pub Type:
Aerial Photograph
Image No:
10607000.jp2
Authors:
USGS Astrogeology Science Center
Jupiter Io Galileo SSI Global Color Merge Mosaic 1km v1
