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{{balloon-launch
{{balloon-launch
| header = SSI-28
| header = SSI-28
| img link =
| img link = File:ssi_28.png
| launch date = January 30, 2016
| designations = UV-1, X-1
| launch site =
| launch date = January 30, 2016, 10:42:58
| launch coordinates =
| launch site = 2093 San Juan Drive, Hollister, CA
| flight duration =
| launch coordinates = 36.84857,-121.43262
| landing date =
| flight duration = 2:35:19
| landing coordinates =
| landing date = January 30, 2016, 13:18:17
| landing coordinates = 36.51287,-119.57532
| last = 27
| last = 27
| next = 29
| next = 29
}}
}}
SSI-28 was the 28th launch of the SSI Balloons team and the first launch for the experimental payloads of [[Project UV]] and [[Project X]]. It flew 169.8 kilometers over a course of 2.5 hours, reaching an altitude of 24 Kilometers before landing. It was a complete success, querying ultraviolet A and ultraviolet B concentrations in correlation with altitude, and the concentrations of specific gasses at different altitudes, in addition to powering heaters and capturing visuals with a camera.
== Pre-Launch ==
[[File:SSI_28_03.jpg | left | thumb | <center> The team</center>]]
SSI-28 was part of a combined experimental balloon launch with [[Project UV]] and [[Project X]] designed to provide preliminary data for these research projects.
== Payload Specifications ==
[[File:SSI_28_05.jpg | right | thumb| <center> The Teensy electronics </center>]]
This payload utilized a Teensy3.2 instead of an Arduino, allowing for better computational power, more memory, and more sensor readings at a higher resolution. The teensy measured time, altitude, UV(A) & UV(B) in watts/cm^2, and gas concentrations of Hydrogen, Methane, Carbon Dioxide, Carbon Monoxide, Ozone, and particulate matter. It was also capable of self regulating its temperature, and writing data to an SD card.
== Launch site ==
[[File:SSI_28_02.jpg | left | thumb| <center> The launch site </center>]]
SSI-28 was launched from a park near 2093 San Juan Drive, Hollister, CA at 10:42AM. The team left campus at 5:30AM, had no issues on site, and returned to campus at 9:00PM.
== The Flight ==
[[File:SSI_28_04.png | right | thumb| <center> 24Km view</center>]]
[[File:SSI_28_01.png | right | thumb| <center> Ground track </center>]]
[[File:SSI_28_07.png | right | thumb| <center> Altitude </center>]]
SSI-28 was outfitted with a balloon with about .5 net Kg of lift.
Because of high winds, the balloon drifted farther than expected, traveling 169.8 kilometers away.
== Debriefing ==
SSI-28 was a success and fulfilled all of the initial goals set out by the team.
*Successful data collection and logging of [[Project UV]] data
*Successful data collection and logging of [[Project X]] data
*Successful implementation of a heater control mechanism
*Successful landing and recovery
== Gallery ==
<gallery widths=300px heights=300px>
File:SSI_28_04.png | <center> 24Km view </center>
File:SSI_28_03.jpg | <center> The team</center>
File:SSI_28_01.png | <center> Ground track </center>
File:SSI_28_05.jpg | <center> The Teensy electronics </center>
File:SSI_28_06.jpg | <center> The retrieved payload </center>
File:SSI_28_02.jpg | <center> The launch site </center>
File:SSI_28_00.png | <center> Popped Balloon</center>
File:SSI_28_07.png | <center> The flight</center>
File:SSI_28_09.png | <center> Project UV data</center>
File:SSI_28_10.png | <center> Project UV data</center>
File:SSI_28_08.png | <center> Project X data</center>
</gallery>
{{balloon-footer}}
{{balloon-footer}}
[[Category: High Altitude Balloons]][[Category: Balloon Launches]]
[[Category: High Altitude Balloons]][[Category: Balloon Launches]]