ALSAT-1N, Pratham

ALSAT-1N, Pratham launch


Fw: AlSat-1N and Pratham launch from India
Source: AMSAT-UK News, Spaceflight101


AlSat-1N Mission PatchThe AlSat-1N and Pratham satellites, both with
amateur radio payloads, are launching on the Indian ISRO PSLV-C35 mission
planned for 0342 GMT on Monday, September 26, 2016, reports are requested.

The 3U CubeSat AlSat-1N was built in collaboration between the Algerian
Space Agency (ASAL), UK Space Agency (UKSA), Surrey Space Centre (SSC)
staff and Algerian students as a technology transfer and demonstrator
for Algeria.

AlSat-1N is also hosting three UK payloads from various institutions and
aims to take images of the Earth and send back data from the UK payloads.

The IARU coordinated downlink is 437.650 MHz 9k6 FSK.

Any downlinked data will be gratefully received at alsatnano@gmail.com
Both decoded hex files and recordings would be greatly appreciated.
Richard Duke M0GSN is transmission authority in the UK under the SSC Club
callsign M0GKK.

AlSat-1N Preliminary KEPS / TLE 
1 99911U 58056A   16270.26346165  .00000000  00000-0 +80011-4 0   335
2 99911  98.2043 327.8094 0027727 264.5366  95.3533 14.63819911213958
Further information on AlSat-1N can be downloaded from:

AlSat-1N Description PDF
AlSat-1N Space to Ground Messages Spreadsheet

Information on the Pratham student satellite is at
http://amsat-uk.org/2016/09/07/pratham-student-satellite/



ALSAT-1N, Pratham launch


Indian ISRO PSLV-C35
September 26, 2016
03:42UTC on Monday

ALSAT-1N
ALSAT-1B
ALSAT-2B
BlackSky Pathfinder-1
CANX-7
PiSAT
Pratham
SCATSat-1


ALSAT-1N
Centre de Developpement des Satellites, Algeria
http://spaceflight101.com/pslv-c35/alsat-nano/
http://ukamsat.files.wordpress.com/2016/09/alsat-1n_description_v1.pdf
437.646MHz 9600bps FSK


 (C)Algerian Space Agency


Pratham
Dept of Aerospace Eng, IIT Bombay, India
http://www.aero.iitb.ac.in/pratham/index.php
437.455MHz 1200bps AFSK
145.980MHz CW


 (C)IIT Bombay

Preliminary TLE

ALSAT-1N
1 99911U 58056A   16270.26346165  .00000000  00000-0 +80011-4 0   335
2 99911  98.2043 327.8094 0027727 264.5366  95.3533 14.63819911213958
Pratham
1 99912U 58056B   16270.26346165  .00000000  00000-0 +80011-4 0   336
2 99912  98.2043 327.8094 0027727 264.5366  95.3533 14.63819911213959


ALSAT-1N beacon header

Received
437.646MHz 9600bps FSK
11:18-11:31 UTC, 26 Sep 2016, Ele 50 SE-E-N
http://www.dropbox.com/s/heikthep49wrbrc/60926als.wav?dl=0
http://www.dropbox.com/s/grjnmd0usnipgiw/60926als.kss?dl=0

Decoded
HS-Soundmodem015 + AgwOnlineKiss244 + KissDump802
________________________________________________________________________
2016-09-29 09:29:45.350 UTC: from ____x	-2 to &_'
000 > 00 41 4C 31 4E 00 44 00 0A 03 0A 2E F0 12 45 06 79 03 EC 02 
020 > 

.AL1N.D.....4&E.y.i.
________________________________________________________________________
2016-09-29 09:29:45.500 UTC: from ____
000 > 00 41 4C 31 4E 00 45 00 17 03 0A 05 01 12 09 58 4D 00 00 31 
020 > 1F 66 06 01 00 D8 FF 75 57 00 09 00 00 

.AL1N.E........XM..1.f...0yuW....
________________________________________________________________________
2016-09-29 09:29:45.750 UTC: from ____x	-9 to &_'
000 > 00 41 4C 31 4E 00 46 00 0B 03 0A 21 F0 12 53 FD E0 00 00 44 
020 > 06 

.AL1N.F....!&.Sya..D.
________________________________________________________________________

  

  


Pratham CW beacon

I, JE9PEL received the very weak Pratham CW beacon on 29 Sep 2016.
Because I was not able to be imaged these fast speed signal, I had to
cooperate imaging to JA0CAW. So I confirmed to be a signal from Pratham
in the figure below. (Confirmed to 41783U 16059A)

Imaged by JA0CAW
Received by JE9PEL
Pratham = 41791U 16059J
11:31-11:44 UTC, 29 Sep 2016
Ele 70 deg, SE-E-N, 145.980MHz CW
http://www.dropbox.com/s/isppuxsnebtlpr1/60929pr2.wav?dl=0




Pratham CW decoding

00:09-00:22 UTC, 1st Oct 2016, Ele 56 NE-E-S, 145.980MHz CW
http://www.dropbox.com/s/f372fccmu200a3p/61001pr3.wav?dl=0




[Supplement] AGW_OnlineKISS_Plus_Decoder

I am receiving ALSAT-1 using AGW_OnlineKISS_Plus_Decoder. This is necessary to
edit first agw_onlinekiss.ini and Decoder will run after starting Soundmodem.

AlSat-1N was built in collaboration between the Algerian Space Agency (ASAL),
UK Space Agency (UKSA), Surrey Space Centre (SSC). Also STRaND-1 which was
launched in 2013, has been developed by the Surrey Space Centre (SSC).
STRaND-1 and ALSAT-1N can be said to the brother satellites.

The transceiver radio module of STRaND-1 can send a watchdog interrupt signal
using a dedicated UART (Universal Asynchronous Receiver/Transmitter) to the
OBC to reset it to a slave mode where a recovery or new binary can be uploaded,
known as a bootloader mode. 

The communications with the ground station of ALSAT-1N are executed through
the STRaND receiver (STRx), using the UHF band to transmit and the VHF to
receive, aided by a gain stage between VHF and STRx.  For more details:

http://directory.eoportal.org/web/eoportal/satellite-missions/s/strand-1
http://ukamsat.files.wordpress.com/2016/09/alsat-1n_description_v1.pdf

  


ALSAT-1N first earth image


(C)Open University & the Alsat-Nano Mission

http://vimeo.com/141151024
http://twitter.com/OxfordSpace
http://www.oxfordspacesystems.com/
http://www.oxfordspacesystems.com/#s-news
http://twitter.com/spacegovuk/status/803180047079120896