Difference between revisions of "Project:HackSat One"
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| − | [[User:Flux|Flux]] | + | {{Project||created=10/10/2011|status=Mission Failed|members=[[User:Flux|Flux]], [[User:Datagramm|Samuel]]}} |
| + | [[File:Hacksat-devboard-hand.jpeg|thumb|right|Dev board for HackSat One]] | ||
| + | [[File:Radio-testing-at-london-hackspace.jpeg|thumb|right|Radio testing with Samuel]] | ||
| + | HackSat One is a tiny [https://flux.org.uk/projects/hacksat/hardware.html satellite sprite], launching as part of the [http://www.kickstarter.com/projects/zacinaction/kicksat-your-personal-spacecraft-in-space KickSat swarm]. The sprite is powered by its own solar panel and is capable of broadcasting signals back to Earth. It launched on 18th April 2014 as part of a NASA mission to resupply the International Space Station. Due to issues with deployment (see mission update, below) the mission failed. There is a related project to build [[Project:Hackney Space Centre|Hackney Space Centre]]. For the latest information see the [[Mailing List|mailing list]]. | ||
| − | + | __TOC__ | |
| − | == | + | === Mission Update: 14 May 2014 === |
| − | + | I'm sad to report that HackSat will not be stretching its solar panels | |
| + | after all. HackSat likely re-entered overnight whilst still inside | ||
| + | KickSat. | ||
| − | + | HackSat launched on 18th April inside the KickSat satellite. KickSat | |
| − | + | started out in an orbit of 299 by 331 Kilometers at an inclination of | |
| − | + | 51.65 degrees. This is a low orbit and subject to a significant amount | |
| + | of drag. | ||
| − | '' | + | Sixteen days after launch, KickSat was due to deploy HackSat and its |
| + | other satellite sprites. The delay was required by Nasa to avoid | ||
| + | interfering with ISS operations. This meant HackSat would have began | ||
| + | orbiting on 4th May. | ||
| + | |||
| + | On 30th April the watchdog microcontroller that runs the KickSat timer | ||
| + | reset, probably due to a cosmic ray. This pushed the deployment of | ||
| + | HackSat out to 16th May. Attempts to manually deploy HackSat via the | ||
| + | uplink failed: the KickSat batteries never reached a high enough | ||
| + | voltage to enable the uplink receiver. | ||
| + | |||
| + | Since launch signals from KickSat have been regularly received by | ||
| + | ground stations around the world. Recent orbital predictions suggested | ||
| + | that re-entry was likely 13-14th May. No stations have reported | ||
| + | hearing KickSat overnight, so it seems very likely it has already | ||
| + | re-entered. | ||
| + | |||
| + | - [[User:Flux|Flux]] ([[User talk:Flux|talk]]) 09:40, 14 May 2014 (UTC) | ||
| + | |||
| + | === Schedule === | ||
| + | After several launch delays, KickSat is now in low Earth orbit. | ||
| + | |||
| + | HackSat and the other sprites will be deploying ~ 20:00 UTC on 4th May. | ||
| + | |||
| + | Our satellite is contained with the bigger KickSat. 128 sprites are loaded into it. It has the names of contributors engraved on it, including "London Hackspace". You can see a [http://zacinaction.github.io/kicksat/engraving_photos/KickSat_minusY_Zoom2.jpg photo of the actual KickSat], complete with our engraving (we're on the bottom row, 4th from the right). | ||
| + | |||
| + | === Software Payload === | ||
| + | HackSat broadcasts a simple set of data on temperature, magnetic field and angular velocity. It will also broadcast the HackSpace URL: http://hack.rs | ||
| + | |||
| + | If you're interested in trying to receive the signal from HackSat (and | ||
| + | the other KickSat sprites) yourself see [https://github.com/zacinaction/kicksat/wiki/Setting-Up-A-Ground-Station setting up a ground station]. | ||
| + | |||
| + | === Hardware === | ||
| + | Below, you can see a photograph of the dev board and dev kit. The sprite board itself is outlined in yellow, with the solar panel taking up most of the left-hand side. The boards beneath beneath the sprite are the TI LaunchPad and connecting board. Key components on the spite are: | ||
| + | |||
| + | * '''TI CC430F6137 microcontroller''' (red): 16-Bit [http://en.wikipedia.org/wiki/TI_MSP430 MSP430], 32KB Flash, 4KB RAM, CC1101 Radio [[http://www.ti.com/product/cc430f6137 datasheet]] | ||
| + | * '''InvenSense ITG-3200 Gyroscope''' (orange) [[https://www.sparkfun.com/datasheets/Sensors/Gyro/PS-ITG-3200-00-01.4.pdf datasheet]] | ||
| + | * '''Honeywell HMC5883L Magnetometer''' (blue) [[http://www51.honeywell.com/aero/common/documents/myaerospacecatalog-documents/Defense_Brochures-documents/HMC5883L_3-Axis_Digital_Compass_IC.pdf datasheet]] | ||
| + | * '''TXC 7Z-26.000MDG-T Oscillator''' (purple) [[http://www.txccrystal.com/images/pdf/7z.pdf datasheet]] | ||
| + | * '''Nitinol antennas''' (extend off top right of photograph) [[http://en.wikipedia.org/wiki/Nitinol nitinol info]] | ||
| + | |||
| + | For more detail on the sprite hardware, including EagleCAD layouts, see the [https://github.com/zacinaction/kicksat/tree/master/Sprite/EagleCAD/Sprite KickSat Git repo]. | ||
| + | |||
| + | ''NB. The dev board (pictured) has a different oscillator to that mentioned above.'' | ||
| + | |||
| + | [[File:Annotated-kicksat-dev-board.jpg]] | ||
| + | |||
| + | === Decal === | ||
| + | [[File:Hacksatone-mission-decal.png]] | ||
| + | |||
| + | |||
| + | ''Decal created by Nick Cramp.'' | ||
| + | |||
| + | [[Category:Projects]] | ||
| + | [[Category:Satellites]] | ||