BATS Balloon FLight - 2003 Launch Time: 8:28 AM CDT Saturday October 4, 2003. Location: 7 miles west of Lake Delton, 0.1 mile east of Townhall Rd on North Ave. Latitude: 43.613 degrees North. Longitude: 89.913 degrees West. Elevation: 927 feet AMSL. Estimated surface wind: 2 mph @ 320 deg. Estimated temperature: 30 degress F. Balloon: Kaymont/Totex 1200 gram with hydrogen gas. Estimated diameter at liftoff: 7.16 feet (760 ft/min - 185 cu ft from prelaunch video). Measured Nozzle Lift: 10 pounds. Estimated Free Lift: 1 pound 6 ounces (560 ft/min). Estimated Ascent Rates (ft/min) : 560 using Nozzle Lift and Liftwin 694 from first five minutes of video 760 using balloon diameter and Liftwin 941 using 10 minutes of video Estimated total payload weight: 8 pounds 10 ounces. Parachute: 5 foot diameter - round and orange - 2 pounds 3 ounces. Estimated descent rate: 1300 ft/min Radar Reflector: 22" x 22" X corner reflector 48" high - 10 ounces - more space blanket. Radio Payload: 5 pounds 9 ounces - 14" x 14" x 10" foam cooler space blanketed - KB9SFS. 2.411 GHz FM ATV - Approx 20 minutes video recorded from launch site - none from other sites 144.39 MHz APRS - received from launch site - none from other sites including several relatively close to the launch site 446.00 MHz Rx - removed from payload prior to launch. 28.322 CW beacon - received by many stations until about 11:55 CDT Last bearings: 90 - 105 degrees from Madison 40 degrees from Edgerton @ 10:44 AM Estimated Flight Duration: 3 hours 27 minutes Pre Launch Predicted Landing Site: 5 miles north of Milton Actual Landing Site: Unknown - payload remains lost - possibly south of Waukesha. One estimate is near Silver Lake east of Lake Geneva.