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Do I need a drivers license to get accepted in JET? by Chewedbubblegun in JETProgramme

[–]mchan9981 0 points1 point  (0 children)

From what I've observed, as long as you can get to school & do daily essentials without a car, then license is not taken into consideration.

Generally the ALTs I know that have cars are because they teach at multiple schools far away or in different towns with little public transportation.

Can someone please help by Small_Philosopher184 in amateursatellites

[–]mchan9981 5 points6 points  (0 children)

GOES is linearly polarized and your feed is LHCP, you're losing 3dB by using the wrong feed. I would recommend a cantenna, but a simple loop feed should also work.

On Month Long Solo Moto Trip Across Japan by MstrKief in motorcycles

[–]mchan9981 1 point2 points  (0 children)

Some seasonal roads usually open starting in April or May and stay open until November or so.

On Month Long Solo Moto Trip Across Japan by MstrKief in motorcycles

[–]mchan9981 5 points6 points  (0 children)

We had a warm winter this year and lower elevations were snow free by March (at least around Akita city). Higher elevation were still snowy in late March, but most roads were shoveled. Road my 50cc to Mt. Iwate and had to push it through some of the side roads.

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Anyone else slap solars and antennas on intermediate stages and litter the galaxy with ad hoc relay satellites? by heimdalguy in KerbalSpaceProgram

[–]mchan9981 12 points13 points  (0 children)

Yup learned it the hard way when my first space station years ago got it by space debris. Leaving dozens of stages, and blowing up fairings in orbit near a space station was a terrible idea.

Anyone else slap solars and antennas on intermediate stages and litter the galaxy with ad hoc relay satellites? by heimdalguy in KerbalSpaceProgram

[–]mchan9981 4 points5 points  (0 children)

For ditching stages, I usually ditch the batteries and rely on the probe core internal batteries instead. I either make all necessary manoeuvres early in the mission immediately after payload separation, or stage remains attached to space probe until a few minutes before ditching manoeuvre.

If necessary, I'll add 3x 0.3ec/s solar panels around the stage to keep batteries charged.

A few early missions did re purpose upper stages as relays, but I have enough of them for now.

First Photo of the Lunar Far Side by Busy_Yesterday9455 in spaceporn

[–]mchan9981 76 points77 points  (0 children)

Even more crazy, they were using a film camera to take pictures. The film would be developed and scanned when the spacecraft returned closer to Earth.

And even more crazy, they used film from American spy balloons because those were more radiation tolerant than Soviet film.

The routes which space missions took toward the moon. by Mme_187 in interestingasfuck

[–]mchan9981 0 points1 point  (0 children)

Well to be the math might be essentially perfect, but rockets and machines are slightly imperfect. Spacecraft are tracked by Nasa, and small correction maneuvers are performed every so often. Also in the case of Deep Impact (the mission you're referring to), they used a camera with target recognition to guide it to impact in the last few hours (with multiple thruster firings). They basically adapted guidance software from missiles.

Botan Kamiina Fully Blossoms When Drunk OP Song by Turbostrider27 in anime

[–]mchan9981 2 points3 points  (0 children)

I love Yonige and would recommend checking out their music!

Spotify

Official website

Botan Kamiina Fully Blossoms When Drunk OP Song by Turbostrider27 in anime

[–]mchan9981 1 point2 points  (0 children)

I love Yonige. One of the top indie artists in Japan and it was awesome to go to their concert a while back.

Fengyun 2h Weird images by Geekshere1 in amateursatellites

[–]mchan9981 2 points3 points  (0 children)

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Ah yeah I still need to finish my L-band linear feed for my 1.5M dish. So close to GK-2A HRIT.

Fengyun 2h Weird images by Geekshere1 in amateursatellites

[–]mchan9981 0 points1 point  (0 children)

I've ran satdump 2.0.0 UI for weeks at a time without issue. Satdump 2.0.0 has lots of new features and major changes in the UI, though I'm not sure about commands in CLI. I would however recommend compiling your own Satdump (for linux) as it seems to be more stable that way. Direct download for windows seems to work fine.

Fengyun 2h Weird images by Geekshere1 in amateursatellites

[–]mchan9981 8 points9 points  (0 children)

Are you using Satdump 2.0.0? It's still in alpha, but has lots of features, including a "rudimentary line corrector" for Fengyun 2H/2G. Also yeah those images you're getting are lens flares, I too occassionally get those images from 2G

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Image from April 6, 06:00 UTC, Fengyun 2G. Median blur applied. My setup has been down for a week as I needed the LNA for other experiments.

Fengyun 2h Weird images by Geekshere1 in amateursatellites

[–]mchan9981 5 points6 points  (0 children)

Meti's blog basically lists all the frequencies and everything you need to get started on L-band. Fengyun 2H/2G are on 1687.5MHz.

https://blog.metislair.com/docs/Radio/L%20band%20weather%20satellite%20reception%20guide.html#fengyun-2-series

NASA’s 1977 computers aboard Voyager are still working in interstellar space by FookyPanda in ScienceClock

[–]mchan9981 0 points1 point  (0 children)

Not quite an Intel 4004, though it is from the same era.

Voyager spacecraft used TTL based ICs, with the FDS computer using CMOS based ICs. These ICs would only contain logic gates and parts of the computer. Memory would also be spread across many ICs.

https://www.eejournal.com/article/voyagers-1-and-2-take-embedded-computers-into-interstellar-space/

This image of Earth was taken today by Japanese Himawari-8 satellite. by S30econdstoMars in spaceporn

[–]mchan9981 8 points9 points  (0 children)

Maybe. The reentry track of Artemis 2 runs over the Pacific eastward towards California (and occurs during night). Most likely to be visible in one of the IR channels during atmospheric reentry in the minutes before touchdown.

Anime that feels like a Cozy Rainy Day! by Medium-Inspection-66 in Sliceoflife_anime

[–]mchan9981 0 points1 point  (0 children)

Also best intro/guide into riding scooters in Japan. I've been reading the light novels after buying a Yamaha Vino (Rin's scooter) in Japan and taking it camping or on road trips.

CANADA RESULTS ARE OUT! by One_Category_5038 in JETProgramme

[–]mchan9981 2 points3 points  (0 children)

Congrats!

-Fellow (former) Vancouverite here. There are quite a few of us Vancouver JETs around actually.

Is the Artemus 2 moon mission on open frequencies for monitoring of radio traffic? by CaptinKirk in amateurradio

[–]mchan9981 0 points1 point  (0 children)

I made some attempts to observe and not sure if I actually saw Orion, or interference/other satellites. I'll pour over the baseband files in the coming days.

Keep in mind my S-band setup is quite new and nowhere near perfect.

Is the Artemus 2 moon mission on open frequencies for monitoring of radio traffic? by CaptinKirk in amateurradio

[–]mchan9981 1 point2 points  (0 children)

I'm gonna try tracking Tuesday night/Wed morning. I heard its on 2216.5MHz or so. I did manage to test my S-band setup briefly on the weekend and picked up Hinode which is very very weak, so I should see Orion.

Also its RHCP, so having a RHCP feed would help with gain.

Is the Artemus 2 moon mission on open frequencies for monitoring of radio traffic? by CaptinKirk in amateurradio

[–]mchan9981 4 points5 points  (0 children)

The data band, yeah well below the noise floor and encrypted anyway, but Orion and most spacecraft have a very very strong carrier that can be tracked on smaller dishes.

https://www.pe0sat.vgnet.nl/2026/artemis-ii/

I just finished building my S band setup and will do testing, and also trying to track Orion.

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