Following is the caption visible in the lower left hand corner of the calendar: 17 April 2002 --- This is one of a series of digital still images of the International Space Station (ISS) recorded by the STS-110 crew members on board the Space Shuttle Atlantis following the undocking of the two spacecraft some 247 statute miles above the North Atlantic. Atlantis pulled away from the complex at 1:31 p.m. (CDT). After more than a week of joint operations between the shuttle and station crews, astronaut Stephen N. Frick, pilot, backed Atlantis away to a distance of about 400 feet in front of the station, where he began a 1 1/4 lap flyaround of the ISS, newly equipped with the 27,000 pound S0 (S-zero) truss, visible in this series of images. S0 is the first segment of a truss structure which will ultimately expand the station to the length of a football field. Photo and text credit: NASA (http://spaceflight.nasa.gov/gallery/images/shuttle/sts-110/html/s110e6019.html)