Co-temporal snapshots of the standard jet of 2008 October 5 showing that nearly all of the plasma in the jet's spire was hotter than ~2 × 10 ⁶ K. Top: XRT image of the jet and its surroundings in the northern polar coronal hole. This is a larger sub field of view taken from the same frame of the XRT movie as the seventh frame of Figure  4. It shows the jet when the spire and the bright point were at or near their maximum size and brightness. Middle left: EUVI B 284 Å image centered on the jet and covering a somewhat larger heliographic area than in the top image. Middle right: EUVI A 284 Å image centered on the jet and covering a somewhat larger heliographic area than in the top image. Bottom left: EUVI B 304 Å image of the same area viewed in the EUVI B 284 Å image above it. Bottom right: EUVI A 304 Å image of nearly the same area viewed in the EUVI A 284 Å image above it. In each image, the slanted arrow points to the location of the jet's bright point, the vertical arrow points to the location of the brightest small feature that is south of the jet's base in the XRT image, and the universal time is in the upper right corner. The angle of separation from Earth was 40° for STEREO A and 37° for STEREO B.