ARISS SSTV Commemorative Activity Coming Soon (July 2017)

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Latest news posted on ARISS-SSTV images Blog. Tuesday, June 20, 2017 Images will be downlinked by ISS on 145.800 MHz FM.

All,

In commemoration of our 20th anniversary, the ARISS team is planning to transmit a set of 12 SSTV images that capture the accomplishments of ARISS over that time. While still to be scheduled, we anticipate the SSTV
operation to occur around the weekend of July 15. We are planning for at least a 2 day operation, but are working for a potential longer operation. Note that all of this tentative and may change based on crew scheduling and
ISS operations.

Starting with our first meeting in November 1996, our joint operations on Mir, becoming the first operational payload on ISS in November 2000 to our 1103rd school contact (so far), ARISS' accomplishments have been tremendous. We have touched the lives of many and inspired and educated countless students to pursue science, technology, engineering and math careers.

Please stay tuned as more details on our SSTV event will be communicated in the coming weeks. Please spread the word. And think about how you can get students in your area involved in capturing these images. We would love to hear your stories on how that goes.

73, Frank KA3HDO

G7HCE – Tue, 2017 – 06 – 20 09:50

Full Sweep

Thanks to the ARISS team, the ISS Fan Club Team, the ISS crew and others for making this an amazing event !
It'll be fun to see how many submitted all 12 images, a full sweep!.
73, Umesh K6VUG

Submitted by K6VUG-2 on Mon, 2017-07-24 20:08.

SSTV Downloads over Australia VK4EM

I must say thankyou to who were able to set up the SSTV for all of us to Download very good signal from ISS from edge to edge and very nice photo's for all of us to collect BUT the only trouble is because ISS takes the same time to get over us here in Australia we get the same Photo's from the file which start at 3 and go to 5 each pass so far I have 3 sets of the same Downloads 3 to 5 and I --we have no chance of the 12 photo full Downloads unless you give us more time ==would it be better to have the PC pull Random Photo's from the file to give Us --Me some hope of the full 12 Downloads ????
VK4EM Merv QLD. Australia ...........

Submitted by VK4EM on Fri, 2017-07-21 18:54.

SSTV Downloads

HELLO again and a big thankyou to one and all that were able to let us Download SSTV from ISS so far here in Australia I have 11 out of the 12 only need number 8 now there has been many double's but with the Extra time just maybe this time we will get the full 12 ..Each pass have been very good big signals and most of the time SSTV has been on its 60 s. cool off time at the start of the pass so I was able to get very few part Downloads!
What I have here is a Kenwood TM-V-71A with a VHF Yagi and a VHF vertical with both antennas linked DIY interface ===FT847 with a 80m di/pole and a EGG beater also linked !
Thanks again is there going to be an AWARD of QSL this time ??
VK4EM Merv........

Submitted by VK4EM on Sun, 2017-07-23 19:27.

Re: SSTV Downloads

Merv, I hope you managed to receive the final image. I just received my elusive final image so I have now managed to receive all 12 images over the duration of the event.

Regards

Shane VK4KHZ

Submitted by Shane Lynd VK4KHZ on Mon, 2017-07-24 04:04.

Thanks Shane VK4KHZ

Yes Shane this time with the extra time I was able to get the full 12 Downloads number 8 was I thought going to be a problem I did get bit of Number 8 as ISS came over the edge and went over the edge and it got down to almost the last pass and WOW YAHOO there it was on the screen a full Download on 8 !!
Again thanks to all VK4EM Merv.......................

Submitted by VK4EM on Thu, 2017-10-05 20:14.

odd

That seems odd or highly improbable. The orbit of ISS is ~92 minutes. If the images take 2 minutes and the gap is 3 minutes then 12 images should repeat in 60 minutes. If they are transmitted sequentially then you should only see them duplicated about every other orbit.

I thought the program just sent them randomly and it may be that you got the same 3 randomly. Guess we need some more data points to discover the process. Thankfully the event is scheduled to run until Monday, July 24 at 18:00 UTC.

Kenneth - N5VHO

Submitted by N5VHO on Fri, 2017-07-21 20:20.

re: odd

Hi!

So far, it looks like the pictures are transmitted in numeric order, going from 1 to 12, then restarting with one. The pictures I'm copying are always coming in numeric order, not in any random sequence. If a randomizer function can be used to mix these up, as long as it doesn't cause the same pictures to be sent one after the other, that would be interesting.

73!

Patrick WD9EWK/VA7EWK

Twitter @WD9EWK or

Submitted by WD9EWK on Sat, 2017-07-22 00:40.

Re:re: odd

Have to agree with Patrick. It could be the location and how many images you receive during each pass. For me I normally get part of image at start and end of pass due to buildings but usually 2 good clean full images using THD74 HT + Arrow-2 handheld antenna. After 2 nights over the UK have missed 2 images in total now so very pleased with that. Every image received have been in numerical order with the last 2 images 12/12 & 1/12 and the best ones are posted on this site with the times received so you can see. There are some repeat images on some following passes but think after another possible 1-2 nights will get the full set.

Submitted by G7HCE on Sat, 2017-07-22 06:29.

RE:odd

So these are sequential and apparently separated by 2 minutes. That does shift the sequence a bit closer to cycling the same ones over a location with ~48 minutes to cover a cycle (which is just over half an orbit). Still, they should drift a bit each orbit and folks should see a different set over each day.

Submitted by N5VHO on Sat, 2017-07-22 09:32.

Repeating Pictures

Hi.
I can confirm that here in South Africa we have also experienced the phenomena of the same pictures being received as on the previous orbit.

The AOS time difference for us is 96 minutes which matches exactlty with the time it takes to send all 12 pictures and then all 12 again.
So on these orbits our pictures always repeat.
But there is a small synchronization drift, which can help one get the start/end of the picture perhaps not received cleanly on the previous pass.

If there was just one more or less picture...
Or the pause time made shorter by 10 seconds...

The pictures are great though. Would just have been better to be able to catch more of them and not see the same repeating from one pass to the next. Getting there, but its slow going.

Submitted by ZS6TW on Sat, 2017-07-22 16:14.

Repeating Pictures

Hi,

Measuring the SSTV TX timings, I see that the time from the start of one TX to the start of the subsequent TX is 4:10.5, which includes the 2:00 pause between transmissions.

Running the math and comparing to the picture numbers I get when the ISS is overhead, I suspect that when cycling from 12 back to 1, the delay is not 2 minutes, but 2.5 minutes. The pattern then works out nicely against my modeling.

Of course, I could have it all wrong...

Here are my predictions:

Keith

Submitted by ZS6TW on Sun, 2017-07-23 09:31.

Re: Repeating Pictures

From my QTH Exeter/UK IO80gr I have averaged 1-2 partial + 2 full clean images including full same repeated image from the previous pass. With total of 13 good high degree passes (13 THD74 microSD recordings) to date 4 per night (5 first night) over 3 nights I've downloaded all 12 full images using TH-D74 HT + Arrow-2 Antenna.

Submitted by G7HCE on Sun, 2017-07-23 13:11.

Re: Repeating Pictures

Hi.

Glad you managed to snag all of them! I am still waiting for #1.

Your upcoming pass at 21:22 utc should have #6 and #7 coming up.
Which means your last low elevation pass this morning early your time (4:40) was most likely around #9.

Hope you have fun!
Keith

Submitted by ZS6TW on Sun, 2017-07-23 14:45.

Re:Re: Repeating Pictures

The pass just gone over at 21:19 UTC was start of numerical sequence again images #1 & #2 see my tweet

Some of the transmissions breaks are not all the same as posted by others on twitter with some experiencing 5-6 mins in between.

Submitted by G7HCE on Sun, 2017-07-23 18:14.

reRE:odd

There does seem to be longer gaps between transmissions at times. Others have also tweeted some having 5 minute gaps in between at times. I had early morning pass today and thought transmissions were turned off having heard nothing from AOS until mid-pass was overhead where I could visually see the ISS in clear night sky and found packet digipeater was unresponsive before SSTV transmissions started confirming like others around the 5 minute period.

Submitted by G7HCE on Sat, 2017-07-22 13:43.

ISS-SSTV to start Thursday, July 20 at 21:25 UTC

SSTV transmissions to start Thursday, July 20 at 21:25 GMT on 145.800 MHz FM according to latest post on Twitter.

Submitted by G7HCE on Sun, 2017-07-09 05:17.

Coincidence?

Hi All,

The scheduled start time coincides with the anniversary of the Apollo 11 landing of 48 years ago, which was at 20:18 GMT.

Here is a recording of the landing you are unlikely to have come across before.

Best listened to in the car or using earphones for optimum enjoyment.
At 30:32 someone lights up... (could you hear that?)
At 31:45 touchdown.

Keith
ZS6TW

Submitted by ZS6TW on Tue, 2017-07-18 15:02.

Yes, coincidence

It had to wait until the Progress undocking operations were finished so to be on the safe side they scheduled it for the last activity of the day before sleep (21:30 UTC).

Submitted by N5VHO on Thu, 2017-07-20 17:35.

SSTV more time Please ?

Hello and we are looking forward to the SSTV downloads from ISS and yes Please more time because sometimes we only get part Downloads because of the pass and so far I never get to Download all the SSTV but if we had more time well that would be a big help ==I did some test with Packet last week on ISS but couldn't hit the antenna just after it passed over me and off to ZL which I can always work ISS until over ZL and I see that on FB before the Cargo Ship is there so maybe it was between me and the antenna ?? A very big thankyou for what you do for us !! :-)
VK4EM Merv....QLD AUSTRALIA

Submitted by VK4EM on Fri, 2017-06-30 22:47.

SSTV Mode?

Hi

What SSTV mode will the ISS be using?

Randy, K7AGE

Submitted by K7AGERandy on Sun, 2017-06-25 20:07.

Guessing

In the recent past, the mode has been PD180. Guess we will find out when they start transmitting.

Submitted by N5VHO on Mon, 2017-06-26 16:52.

you were fast getting that up ;-0

SSTV on a PI:

The signal is so loud when overhead that you can get it on any 2 meter radio set, dust of your beofeng and head outside 145.800 (wide fm)
use mmsstv (windows) or qsstv (Linux) you dont need an interface cable use the sound card input and hold the radio (or your mobile phone) close.

You should be able to decode the images.

Even go out and use the phone to record the sound then send it to the PC mac laptop pi etc to decode.

73 and have fun

James Preece M0JFP
Chertsey radio club (MX0MXO)
Twitter: @chertseyrc
Blog:

Submitted by 2e1avx on Tue, 2017-06-20 11:46.

Images

Hi,

I receiving SSTV from the ISS each night about 5 passes per day. Now is third day od SWL.
The collection of images is big, however I didn't recive images 2, 3 and 4, whereas others I have received up to five times.

Is it possibile to extend SSTV activity for next weekend with other images order?

73, Armand

Submitted by sp3qfe on Sat, 2017-07-22 22:03.

Spread the word

Hi James,

Received tweet from ARISS to say 'spread the word' so posted ASAP.

Looking forward to SSTV hope it will be on for a few days.

Your blog link don't appear to work

73 David

Submitted by G7HCE on Wed, 2017-06-21 06:23.

Typo in my blog link

The Chertsey Radio club blog is:

Cheers ;-)

James / M0JFP

Submitted by 2e1avx on Wed, 2017-06-21 07:25.

re

20 July SSTV Event to Celebrate 20th Anniversary of ARISS !

The Amateur Radio on the International Space Station (ARISS) program is planning a slow-scan television (SSTV) event starting on Thursday, July 20, and continuing for 2 days, to commemorate its 20th anniversary. Transmissions, set to get under way around 2125 UTC, will feature 12 images from past and present ARISS activities. The SSTV signal should be available nearly anywhere on the globe at some point during the event.

“Starting with our first meeting in November 1996, our joint operations on Mir, becoming the first operational payload on ISS in November 2000, to our [more than 1,100] school contact (so far), ARISS’s accomplishments have been tremendous,” ARISS International Chair Frank Bauer, KA3HDO, said, in first announcing the SSTV event last. “We have touched the lives of many and inspired and educated countless students to pursue science, technology, engineering, and math careers.”

The event plans to use a computer on the ISS Russian Segment, which stores images that are then transmitted to Earth using the onboard Kenwood TM-D710 transceiver, the ARISS announcement explained.

Those receiving the images can post them at for viewing by the public.
SSTV signals will be transmitted on 145.80 MHz using FM. The SSTV mode is expected to be PD120, with PD180 as a possible second option. Free SSTV decoder software is available on the Internet.

73 de IW2BSF - Rudy

Submitted by IW2BSF on Mon, 2017-07-10 15:07.

This Weekend, Next Week or Both?

So there's not going to be any SSTV from the ISS this week? It's been moved to the 20th?

Submitted by KF5RHI on Fri, 2017-07-14 16:16.

re

i think NO, posted at 20 July ...... 73

Submitted by IW2BSF on Sat, 2017-07-15 07:42.

re

Update 2017-07-21:

Crew schedule now indicates SSTV activity will conclude at 18:00 UT on Monday, July 24.

Submitted by IW2BSF on Fri, 2017-07-21 15:34.
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