Changes

'''June 1, 2019, 1035 PDT:''' Launch. A fitting between the neck of the balloon and the vent had to be improvised on site. The target ascent rate was 1.7 - 2 m/s, and the flight plan was to equilibrate at 19-22km, with the first vents occurring at 14km.

'''June 1, 2019, 1035 PDT:''' Launch. A fitting between the neck of the balloon and the vent had to be improvised on site. The target ascent rate was 1.7 - 2 m/s, and the flight plan was to equilibrate at 19-22km, with the first vents occurring at 14km.

'''June 1, 2019, 1109 PDT:''' Due to slow ascent of 1.4 - 1.8 m/s, a first ballast command of five seconds was sent.

'''June 1, 2019, 1109 PDT:''' Due to slow ascent of 1.4 - 1.8 m/s, a first ballast command of five seconds was sent. Balloon altitude was around 3.6 km.

'''June 1, 2019, 1143 PDT:''' Further 5 seconds of ballast were sent, titrating successfully at 1.7 - 2.2 m/s.

'''June 1, 2019, 1143 PDT:''' Further 5 seconds of ballast were sent, titrating successfully at 1.7 - 2.2 m/s at around 7 km in altitude.

'''June 1, 2019, 1236 PDT:''' First vent command of 5 seconds at an altitude of 14 km.

'''June 1, 2019, 1236 PDT:''' First vent command of 5 seconds at an altitude of 13.9 km.

'''June 1, 2019, 1259 PDT:''' A communications gap was noted due to issues with HABMC. For the remainder of the flight, monitoring was performed through the RockBlock website.

'''June 1, 2019, 1259 PDT:''' A communications gap was noted due to issues with HABMC. For the remainder of the flight, monitoring was performed through the RockBlock website.

'''June 1, 2019, 1309 PDT:''' In response to consistent ascent, a total of 25 seconds of vent were sent at an altitude of 17.8 km.

'''June 1, 2019, 1309 PDT:''' In response to consistent ascent, a total of 25 seconds of vent were sent at an altitude of 17.8 km.

'''June 1, 2019, 1324 PDT:''' With ascent still maintaining around 2 m/s, a total of 64 seconds of vent was sent.

'''June 1, 2019, 1324 PDT:''' With ascent still maintaining around 2 m/s at nearly 20km, a total of 64 seconds of vent was sent.

'''June 1, 2019, 1334 PDT:''' With ascent only barely below 2 m/s and altitude exceeding 20 km, 96 seconds of vent were sent.

'''June 1, 2019, 1334 PDT:''' With ascent only barely below 2 m/s and altitude nearing 21 km, 96 seconds of vent were sent.

'''June 1, 2019, 1341 PDT:''' 80 seconds of vent were sent, successfully slowing ascent to around 0.8 m/s.

'''June 1, 2019, 1341 PDT:''' 80 seconds of vent were sent, successfully slowing ascent to around 0.8 m/s at around 21.5 km.

'''June 1, 2019, 1347 PDT:''' 80 more seconds were sent with the intention of stopping ascent entirely.

'''June 1, 2019, 1347 PDT:''' 80 more seconds were sent with the intention of stopping ascent entirely. Altitude approaching 22 km.

'''June 1, 2019, 1355 PDT:''' To play it safe, yet 96 more seconds were sent, as the balloon was nearing the danger zone. Following this, a slight descent was observed after a peak altitude of ___, and equilibration was declared.

'''June 1, 2019, 1355 PDT:''' To play it safe, yet 96 more seconds were sent, as the balloon was nearing the danger zone. Following this, a slight descent was observed after a peak altitude of 22.100 km, and equilibration was declared.

'''June 1, 2019, 1409 PDT:''' It was noticed that the GPS coordinates and altitude had frozen at the launch site. The cause for this remains unknown, and hence no detailed trajectory of this flight is available. Simulatenously, the barometer began reporting a negative altitude. This is when the balloon probably popped.

'''June 1, 2019, 1409 PDT:''' It was noticed that the GPS coordinates and altitude had frozen at the launch site. The cause for this remains unknown, and hence no detailed trajectory of this flight is available. Simulatenously, the barometer began reporting a negative altitude. This is when the balloon probably popped, after spending only three communication intervals between 22.0 and 22.1 km.

'''June 1, 2019, 1427 PDT:''' Iridium triangulation began reporting consistent coordinates. It is believed that this was payload impact.

'''June 1, 2019, 1427 PDT:''' Iridium triangulation began reporting consistent coordinates. It is believed that this was payload impact.