Ahh, thanks so much. I had not seen that. Much appreciated!
Our MRC-100 flying inside the AlbaOrbial POD with this other Pocketqubes:
Sattla 2I, URESAT-1, ROM-2, HELLO SPACE
And this Unicorn POD is inside the D-Orbit SCV-011 Savvy Simon unit.
We calculate the deploy date around jun 20:
MRC-100 see in the Informations menu
And after min 1 day to open the antenna, charge the power, and start the normal operations.
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Hi Scott,
many thanks for your interest to our small pocketqube, MRC-100
Maybe you have insterests to the S-Band downlink on this small device.
It use a not coordinated frequency on 2267.5 MHz GMSK 100kb/s -2Mbit/s 30 dbm
You can find a picure on the Subsystems menu to go to the STX picture. On the 4x4 cm panel there are 2 independent tranmsmitter. Click on the picture there is some more data
If you want to see more info, you can try to browse in the Publications menu. There are 2 paper about the desing of this transmitter. Sory, this thesis in Hungarian, but contanis many pictures, measures and code samples. In the first paper there is a first version of it:
Miklos Banabas: MuholdfedĂ©lzeti QPSK adĂł tervezĂ©se Ă©s megvalĂłsĂtĂĄsa 2020
Based on Analog Devices radio IC-s
And the final version flying on the pocketqube:
Miklos Banabas: S-sĂĄvĂș adĂł fejlesztĂ©se 3-PQ mĂ©retu diĂĄkmuholdhoz
Based on EFR32MG24+HMC453ST SliconLabs ICs. There are some info about the design of the on-board patch antenna too.
We plan to receive this high speed channel with our 3 m parabola on our groudstation
BME - GND use the EttusResearch B200mini sdr.
best: hg5apz, t.janos
3 Likes
What information You will transmit at a frequency 2267.5 MHz ?
Is there any decoder that I can use ?
Welcome team and congratulation on a successful launch.
I was wondering is there more information available on Pleiades - Squared?
An IQ recording would be great so we can get familiar with the expected data.
Noted in the 13:20 UTC pass from the satellites deployed there was a signal following close to the same path as the ION deployer. Ran some checks on it:
and it matched 70303 as best fit, 0,079 kHz.
Checked with use of g and 70335 if ION was a better fit, but that one was worse. also checked 70305 which was whitin 0,1 kHz but not satisfying either.
So now there is a satellite created SatNOGS DB - Transporter 8 Satellite ready to schedule to check upcoming observations.
Learned a few things today, again, with thanks to the support of the team !
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Yes - very interested in the S-Band downlink.
Will that be transmitting 24x7?
Or only in communications over your home location?
Thanks!
-Scott, K4KDR
The plan is, on the dedicated web site will publish news about the situation, and changes on the MRC100 pocketqube.
Now the main components of this sitation are:
After the deploiment from the AlbaOrbital,s POD, the sat need some days to charge the accus onboard.
There are some devices, produce lot of data continuously onboad: the wide band spectrum analyser, the camera, the AIS receiver, and so.
There are limited surface of the solar cells, so, the power budget is limited too.
One of our sponsor supported us the âprofessionalâ frequency band.
We have a dedicated receiver system on our ground station, with 3 m parabola and B200 mini sdr.
In first time the control team want to test this system, and will use the high speed downlink only the part of the orbit, when the sat flying over our ground station.
There is a small magnetic altitude control subsystem on the sat. Its main task is to directs the satellit,s patch antenna to the ground sation. It seems, this sybsystem need some tests and improove the control software running on it.
Later need collect some practices, evaluations and we will seeâŠ
Now there arenot available receiver software to use this high speed link. On the reffered thesis paper there are some sources of test codes.
best wishes:
t.janos
3 Likes
Many thanks for the details.
If you get to the point that you wish to test the S-Band downlink at other locations (East Coast USA? :), please let me know!
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I will work on getting a solid IQ recording to show what we expect to see from the sat. Because it is using a LoRa transceiver it is difficult to get the packets to show up solidly on a waterfall when they are faint. I can probably try and provide an example from our engineering model transmitting with attenuators. We use an identical transmitter and similar antenna to the Sapling Giganteum satellite, which has mostly bad passes on SatNOGS, but is still streaming down a ton of data on TinyGS.
Last telemetry from the satellite showed it colder than expected, but power and other systems in good health. We got authenticated packets through the TinyGS network through the night, but have been out of contact for half a day now: tinygs-webapp
During our last direct pass over our ground station around midnight last night we got successful decodes, but the signal was about 20dB weaker than expected. It is possible the satellite has only partially deployed its antenna and can only be received in ideal conditions or the radio is suffering thermal issues. Weâll keep listening and hopefully learn more soon!
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Last nights strf showed a stronger second signal close to 70309 Lemur-2 NAZIYAH
Matches EIVE 70305 nicely. Frequency in the plot is the top signal, satellite transmitter will be added at 400.500 which is close to the real center
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Some TLE updates based on strf observations of @pe2bz:
TOMORROW R2
1 99258U 23165.10000000 .00000000 00000-0 00000-0 0 04
2 99258 97.5112 281.5063 0014872 209.1730 340.6131 15.13274608 04
OTTER PUP
1 99098U 23165.10000000 .00000000 00000-0 00000-0 0 06
2 99098 97.5115 277.4130 0011943 215.5289 328.5051 15.12633630 03
Transporter 8 D
1 99080U 23165.10000000 .00000000 00000-0 00000-0 0 07
2 99080 97.5136 281.3298 0015276 209.0874 341.0078 15.13378702 03
Transporter 8 D is an unknown satellite from this launch but we are not sure which one. Iâll give more details in my next post, that will also contain more details on the status of the satellite and also include 2 or 3 more unknown satellite we found.
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TLE sets for two unknown satellites Transporter 8 E (probably AYRIS-1) and Transporter 8 F (probably AYRIS-1) based on its transmissions as observed by @PE0SAT:
TRANSPORTER 8 E
1 99079U 23163.94160090 .00000000 00000-0 -11274-2 0 09
2 99079 97.5100 280.3798 0016580 202.6669 160.4549 15.14024239 06
TRANSPORTER 8 F
1 99078U 23163.94178262 .00000000 00000-0 -11394-2 0 01
2 99078 97.5138 280.1717 0016734 205.2381 146.5770 15.13998005 07
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Some more TLE sets for ION SCV-011 and unknown satellite Transporter 8 A based on @PE0SAT strf observations:
ION SCV-011
1 99103U 23163.94320914 .00000000 00000-0 -14318-2 0 02
2 99103 97.5073 280.6581 0013198 222.3571 149.2206 15.13246944 02
TRANSPORTER 8 A
1 99083U 23163.94395220 .00000000 00000-0 -13219-2 0 00
2 99083 97.5035 280.1510 0008504 235.9072 139.8313 15.12049802 02
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Iâve updated the first post with the frequencies of the unknown satellites and some info about them. Here is the current status based on Network and 3rd party observations:
| Temporary NORAD ID | Satellite | NORAD ID to follow | Other NORAD IDs | Identified | Deployed | Last Update |
|---|---|---|---|---|---|---|
| RECEIVED AND DEMODULATED | ||||||
| 99103 | ION SCV-011 | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99115 | FOSSASAT-FEROX 14 - PlatziSat-1 | - | - | NO | YES | Received according to tinygs |
| 99114 | FOSSASAT-FEROX 15 | - | - | NO | YES | Received according to tinygs |
| 99112 | FOSSASAT-FEROX 17 | - | - | NO | YES | Received according to tinygs |
| 99097 | MDQSAT-1C | - | - | NO | YES | Received according to tinygs |
| 99096 | MDQSAT-1D | - | - | NO | YES | Received according to tinygs |
| RECEIVED | ||||||
| 99258 | Tomorrow-R2 | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99098 | Otter Pup | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99079 | Transporter 8 Satellite E | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99078 | Transporter 8 Satellite F | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99083 | Transporter 8 Satellite A | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| 99080 | Transporter 8 Satellite D | - | - | NO | YES | Received, using generated TLE from SatNOGS Team |
| NOT RECEIVED | ||||||
| 99081 | Transporter 8 Satellite B | - | - | NO | YES | Not currently observing, trying to figure out if they are known or unknown satellites |
| 99082 | Transporter 8 Satellite C | - | - | NO | YES | Not currently observing, trying to figure out if they are known or unknown satellites |
| 99192 | Istanbul | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| 99101 | Outpost Mission 0 | - | - | NO | NO | Waiting deployment from ION SCV-011 |
| 99113 | FOSSASAT-FEROX 16 | - | - | NO | YES | |
| 99187 | ROM-2 | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| 99182 | MRC-100 | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| 99352 | URESAT-1 | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| 99095 | Pleiades-Squared | - | - | NO | YES | |
| 99100 | SpeiSat | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| 99104 | QPS-SAR-6 | - | - | NO | YES | |
| 99106 | GREGOIRE | - | - | NO | YES | |
| 99109 | XVI | - | - | NO | YES | |
| 99110 | Droid.001 | - | - | NO | YES | |
| 99107 | AFR-1 | - | - | NO | YES | |
| 99105 | Orbiter SN3 | - | - | NO | YES | |
| 99111 | EIVE | - | - | NO | YES | |
| 99102 | Winnebago-1 | - | - | NO | YES | |
| 99106 | GREGOIRE | - | - | NO | YES | |
| 99108 | MuSat-1 | - | - | NO | YES | |
| 99260 | Blackjack Aces-2 | - | - | NO | YES | |
| 99262 | Blackjack Aces-4 | - | - | NO | YES | |
| 99259 | Blackjack Aces-1 | - | - | NO | YES | |
| 99261 | Blackjack Aces-3 | - | - | NO | YES | |
| 99099 | SATLLA-2I | - | - | NO | NO | Waiting deployment from ION SCV-011 - Alba Orbital Cluster 7 |
| NOT IN DB | ||||||
| - | AII-DELTA | - | - | NO | YES | |
| - | GEISAT | - | - | NO | YES | |
| - | Ayris-1 | - | - | NO | YES | |
| - | Ayris-2 | - | - | NO | YES | |
| - | LEMUR 2 EMBRIONOVIS | - | - | NO | YES | |
| - | MISR-A | - | - | NO | YES | |
| - | LEMUR 2 NAZIYAH | - | - | NO | YES | |
| - | LEMUR 2 AADAM-ALIYAH | - | - | NO | YES | |
| - | Swarm Spacebees | - | - | NO | YES | |
| - | MISR-B | - | - | NO | YES | |
| - | Tiger-4 | - | - | NO | YES | |
| - | NewSat 40 | - | - | NO | YES | |
| - | NewSat 41 | - | - | NO | YES | |
| - | NewSat 43 | - | - | NO | YES | |
| - | NewSat 42 | - | - | NO | YES | |
| - | 1st ICEYE satellite | - | - | NO | YES | |
| - | 2nd ICEYE satellite | - | - | NO | YES | |
| - | 3rd ICEYE satellite | - | - | NO | YES | |
| - | HotSat-1 | - | - | NO | YES | |
| - | 4th ICEYE satellite | - | - | NO | YES | |
| - | Skykraft-3 | - | - | NO | YES | |
| - | GHOSt-3 | - | - | NO | YES | |
| - | Runner-1 | - | - | NO | YES | |
| - | EpicHyper2/Dragonette 2 | - | - | NO | NO | Waiting deployment from ION SCV-011 |
3 Likes
Based on @pe2bz (TOMORROW R2, OTTER PUP and TRANSPORTER 8 E) and @PE0SAT (ION SCV-011) strf observations, new TLE set for 4 satellites:
TOMORROW R2
1 99258U 23167.50000000 .00000000 00000-0 00000-0 0 00
2 99258 97.5112 284.1789 0011173 213.4745 82.0625 15.13266925 01
OTTER PUP
1 99098U 23167.50000000 .00000000 00000-0 00000-0 0 02
2 99098 97.5115 283.4266 0011943 213.0257 66.5941 15.12629650 02
ION SCV-011
1 99103U 23167.50000000 .00000000 00000-0 00000-0 0 09
2 99103 97.5073 283.5490 0005304 230.8017 63.6080 15.13056312 09
TRANSPORTER 8 E
1 99079U 23167.50000000 .00000000 00000-0 00000-0 0 01
2 99079 97.5100 284.0466 0015966 193.1775 112.6343 15.13875718 04
4 Likes
MDQSAT-1C & MDQSAT-1D are lost due a fatal fail in the batteries. 1C only worked for less than a day and 1D less than five days. With this test there are three intents without success to put works those picosatellites.
2 Likes
Possible S-Band downlink (2264.8 MHz) from ION SCV-011 that Iâve watched for several nights, but never got a long enough or strong enough signal to decide if that was the source or not. Tonightâs pass was my best so far and does look like it could be from ION SCV-011 if anyone would like to watch for it â
3 Likes
A new TLE set by @PE0SAT for Transporter 8 Satellite F (probably AYRIS-2):
Transporter 8 F
1 99078U 23163.94178262 .00000000 00000-0 -11394-2 0 01
2 99078 97.5138 280.5909 0016734 205.2381 161.2435 15.13998005 06
4 Likes
Hm⊠there is some strange issue with the MRC-100 TLE: SatNOGS Network - Observation 7727375. Although it has not been yet deployed, it is completely on a reverse orbit according to this preliminary TLE w.r.t. ION SCV-011.
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