33 results for tags
space x
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The Inmos Legacy - transputer links and SpaceWire
After reading https://forums.theregister.com/forum/all/2022/05/06/pi_pico_transputer_code/, I was looking for information related to transputers and found this page.Tue Jan 24 10:21:40 2023 - permalink -
The point-to-point technology to link transputers was formalised in the IEEE 1355 standard. This was further developed under the ESA into SpaceWire, which is now designed into a number of space missions under development in Europe, the USA and Japan. A key player in developing SpaceWire was Paul Walker from the transputer team whose company, 4Links, is now selling SpaceWire test equipment.
XMOS mentioned on the page can be found on https://www.xmos.ai- http://www.inmos.com/inmos_legacy.html
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Predict when the Moon is illuminated by the French GRAVES space surveillance radar.
Found via the author's blog https://www.dl1ye.com/posts/2021-04-29-universal-lnb-biastee/ which in turn was found when searching for a bias tee.Fri Nov 25 23:17:05 2022 - permalink -- https://gitlab.com/knightshrub/graves
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GMAT Wiki - Confluence
The General Mission Analysis Tool (GMAT) is an open-source space mission analysis tool. Found via https://destevez.net/2022/09/more-qo-100-orbit-determination/Thu Oct 20 16:39:37 2022 - permalink -- https://gmat.atlassian.net/wiki/spaces/GW/overview?homepageId=380273216
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Wayfinder: an open-access and near real-time visualization of satellites and debris in Earth orbit.
Found via an ad, Omega is teaming with Privateer https://gothammag.com/omega-privateer-space-travel-junk-wayfinderThu Apr 7 22:34:36 2022 - permalink -- http://www.privateer.com/
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F´ A Flight Software and Embedded Systems Framework
F´ (or F Prime) is a software framework for the rapid development and deployment of embedded systems and spaceflight applications. Originally developed at NASA’s Jet Propulsion Laboratory, F´ is open-source software that has been successfully deployed for several space applications. It has been used for but is not limited to, CubeSats, SmallSats, instruments, and deployable.Thu Jun 24 16:55:21 2021 - permalink -- https://nasa.github.io/fprime/
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NASA/JPL Eyes
Digital orrery, showing planets, moons, asteroids and some spacecraft.Thu Feb 18 23:13:21 2021 - permalink -- https://eyes.nasa.gov/apps/orrery/#/home?time=2021-02-18T22:11:15.164+00:00
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Spektrum Kompakt Im Orbit - Unterwegs in der Erdumlaufbahn
Sun Dec 13 21:55:55 2020 - permalink -- https://www.spektrum.de/pdf/spektrum-kompakt-im-erdorbit/1712030
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Reading List: Sunburst and Luminary
Review ofWed Dec 18 17:15:24 2019 - permalink -
Eyles, Don. Sunburst and Luminary. Boston: Fort Point Press, 2018. ISBN 978-0-9863859-3-3.
http://www.sunburstandluminary.com/SLhome.html
The next blog entry is interesting as well.
https://www.fourmilab.ch/fourmilog/archives/2019-11/001848.html
Crossfield, Albert Scott and Clay Blair. Always Another Dawn. Seattle, CreateSpace, [1960] 2018. ISBN 978-1-7219-0050-3.- https://www.fourmilab.ch/fourmilog/archives/2019-11/001849.html
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Jim's Notes: Apollo Virtual AGC for Raspbian on Raspberry Pi 4
Brief description of a failed attempt to install the virtual AGCThu Dec 12 13:37:41 2019 - permalink -
from https://www.ibiblio.org/apollo/ on a Raspberry π 4 running Raspian.- https://jim-st.blogspot.com/search/label/apollo
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General Mission Analysis Tool (GMAT) Wiki Home
GMAT is designed to model, optimize, and estimate spacecraft trajectories in flight regimes ranging from low Earth orbit to lunar applications, interplanetary trajectories, and other deep space missions. Analysts model space missions in GMAT by first creating resources such as spacecraft, propagators, estimators, and optimizers.Fri Oct 18 17:57:59 2019 - permalink -- http://gmatcentral.org/
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Apollo 11 in Real Time
A real-time journey through the first landing on the MoonSun Aug 11 23:31:51 2019 - permalink -
This website consists entirely of original historical mission material- https://apolloinrealtime.org/11/
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St Kwan's Home for the Terminally ADD: Radiation-pressure propulsion for nano-spacecraft
Abstract: The Breakthrough Starshot project proposes using radiation-pressure propulsion to send multiple spacecraft in the gram-range mass to interstellar targets. There are numerous engineering challenges to accomplishing this mission, but their project discusses speeds and accelerations previously only discussed for cannon projectiles and particle physics experiments. This article examines the problem from first principles to see if the project is even orders-of-magnitude possible. A preliminary check on their numbers seems to confirm that the project is possible in principle.Tue Jul 2 19:45:49 2019 - permalink -
https://stkwans.blogspot.com/2012/04/program-66.html is about the Apollo guidance computer.
https://stkwans.blogspot.com/2012/09/a-review-of-adxl345-and-bma180.html- https://stkwans.blogspot.com/2016/08/radiation-pressure-propulsion-for-nano.html
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What to expect when Beresheet launches to (and lands on) the Moon | The Planetary Society
Includes a mission schedule.Sat Feb 23 01:31:25 2019 - permalink -- http://www.planetary.org/blogs/jason-davis/beresheet-what-to-expect.html
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Visual Satellite Observer's Home Page
Information about visual satellite observation.Fri Jun 22 16:06:58 2018 - permalink -- http://www.satobs.org/satintro.html
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The CPU Shack - History of Microprocessors & CPU Technology
CPU History Museum for Intel CPUs, AMD Processor, Cyrix Microprocessors, Microcontrollers and more.Mon Apr 16 10:46:21 2018 - permalink -
Also has information about processors used in space missions:
http://www.cpushack.com/space-craft-cpu.html- http://www.cpushack.com/
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iDSKY
Simulation of the Apollo Guidance Computer (AGC) and its display/keyboard (DSKY).Sat Feb 3 14:51:33 2018 - permalink -- http://idsky.genedorr.com/iDSKY.html
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Virtual AGC (Apollo guidance computer) Home Page
The purpose of this project is to provide a computer simulation of the onboard guidance computers used in the Apollo Program's lunar missions, and to generally allow you to learn about these guidance computers.Wed Jan 24 14:40:19 2018 - permalink -
See also the source code at https://github.com/chrislgarry/Apollo-11/- http://www.ibiblio.org/apollo/index.html
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Daniel Estévez – Electronics, ham radio and more
Has a number of interesting articles, for exampleTue Nov 8 22:38:39 2016 - permalink -
Trying to find the DSLWP-B crash site, calculation of the impact location of the DSLWP-B spacecraft.
https://destevez.net/2019/08/trying-to-find-the-dslwp-b-crash-site/#more-7025
Detailed description of decoding telemetry from Voyager 1 received 2015-12-30 with the Green Bank radio telescope.
https://destevez.net/2021/09/decoding-voyager-1/
And some more recent data
https://destevez.net/2021/12/more-data-from-voyager-1/
Analysis of the Ephemeris quality during the Galileo outage in July 2019.
https://destevez.net/2019/09/ephemeris-quality-during-the-galileo-outage/
https://destevez.net/2019/08/galileo-outage-revisited/
Other articles related to satellite navigation
https://destevez.net/2022/03/a-rust-implementation-of-galileo-osnma/
https://destevez.net/2022/03/timing-sdr-recordings-with-gps/
https://destevez.net/2019/11/measuring-the-allan-deviation-of-a-gpsdo-with-an-sdr/
The following articles contain information about the Pluto SDR
https://destevez.net/2022/09/connecting-the-pluto-sdr-to-an-android-phone/
https://destevez.net/2022/08/calculating-the-qo-100-beacons-frequency-separation/
Details of the Reed-Solomon code used by Voyager
https://destevez.net/2021/12/voyager-1-and-reed-solomon/
https://destevez.net/2022/02/an-error-in-the-dsn-telecommunications-link-design-handbook-description-of-reed-solomon/
List of RF recordings
https://destevez.net/rf-recordings/- http://destevez.net/
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Stuff in Space
Graphical demonstration of space debris.Tue Jul 14 13:14:05 2015 - permalink -- http://stuffin.space/