Friday, April 29 - <i>Endeavour's</i> crew walks out to the Astrovan ahead of the first scheduled launch attempt.
{"Image Make": "Canon", "Image Model": "Canon EOS-1D Mark II", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS4 Windows", "Image DateTime": "2011:04:30 22:38:00", "Image Artist": "Michael J Deep", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "242", "EXIF ExposureTime": "1/1250", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "0232", "EXIF DateTimeOriginal": "2011:04:29 12:03:23", "EXIF DateTimeDigitized": "2011:04:29 12:03:23", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ApertureValue": "4", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "184", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard"}