[amsat-bb] Pratham: IITB Student Satellite

Wed Oct 5 18:53:26 UTC 2016

Hi Team,

Listened yesterday evening (04-10-2016) and tonight (05-10-2016) no 
signals received.

Not on 145.980/CW nor on 437.455/AFSK

The satellite was in eclipse on both occasions.

With regards,

Jan van Gils - PE0SAT

On 05-10-2016 18:01, Aayush Yadav wrote:
> Hello all,
> 
> Pratham has been identified as object 41783, 2016-059A. However we 
> have not
> been able to track the satellite with these TLE's. If you could please
> track the satellite with these TLE's and confirm with us it would be 
> really
> appreciable. Thank you.
> 
> Kind regards.
> Team Pratham!
> 
> On Sunday 25 September 2016, Aayush Yadav <aayushyadav825 at gmail.com> 
> wrote:
> 
>> Hello all,
>> 
>> We are glad to inform you that Pratham, IITB's Student Satellite is
>> expected to launch with the help of PSLV-C35 on 26th September, 2016 
>> at
>> 9:12 AM.
>> 
>> The following are the TLE data for the satellite:
>> 
>> 16005A      16270.25119097     0.00000311       00000-0     59418-4   
>>  0
>>    1232
>> 98.2057    329.0542    0028038    267.7677   9.1998   14.63716875    
>> 11
>> 
>> Any update in these will be notified at the earliest. We would love 
>> you
>> all to be a part of the project and help us in tracking our 
>> satellite.
>> There are basically two downlink for the satellite, The beacon is
>> estimated to switch on in the window of 25-30 degrees North and 4-8 
>> degrees
>> East as per the current TLE's. Once switched on, it will remain so 
>> through
>> out it's orbit. The telemetry data will be switched on only over 
>> France and
>> India because of our power constraints. If you could, please receive 
>> the
>> beacon and/or telemetry of the satellite and report back to the mail 
>> id's
>> as given below. The information for the satellite transmissions is 
>> given
>> below,
>> 
>> Beacon:
>> Frequency: 145.98 MHz
>> Modulation: CW
>> Words per minute: 30
>> Power Emitted: 0.2 W (23 dBm)
>> 
>> Telemetry:
>> To be switched on only over India and France
>> Modulation: FSK
>> Rate: 1200 bps
>> Power Emitted: 0.06 W (18 dBm)
>> 
>> For any other Information you may visit our website
>> <http://www.aero.iitb.ac.in/pratham/>. Also feel free to contact our
>> Communication and Ground station team, (Rachana Agarwal,
>> rachna.agrawal.04 at gmail.com
>> <javascript:_e(%7B%7D,'cvml','rachna.agrawal.04 at gmail.com');>; and 
>> Aayush
>> Yadav, aayushyadav825 at gmail.com
>> <javascript:_e(%7B%7D,'cvml','aayushyadav825 at gmail.com');>) for any
>> queries you may have.
>> 
>> On Thu, Sep 8, 2016 at 1:44 PM, Aayush Yadav 
>> <aayushyadav825 at gmail.com
>> <javascript:_e(%7B%7D,'cvml','aayushyadav825 at gmail.com');>> wrote:
>> 
>>> Hello,
>>> 
>>> Thank you for your wishes.
>>> 
>>> The FSK downlink contains only the health monitoring data of the
>>> satellite and is used for payload calculations. IPGP university in 
>>> france
>>> requested us for the payload data for their scientific research thus 
>>> we are
>>> switching on the telemetry only over India and France.
>>> 
>>> However the CW beacon will be on through out the orbit and can be
>>> received from anywhere.
>>> 
>>> Kind regards,
>>> Team Pratham
>>> 
>>> 
>>> On Thursday 8 September 2016, Nitin Muttin <vu3tyg at yahoo.co.in
>>> <javascript:_e(%7B%7D,'cvml','vu3tyg at yahoo.co.in');>> wrote:
>>> 
>>>> Hi Team Pratham,
>>>> 
>>>> Thanks for the update and will look forward for a successful launch 
>>>> and
>>>> deployment of your satellite. Please share why the FSK downlink on 
>>>> 437.455
>>>> Mhz is activated over France and India.
>>>> 
>>>> 73
>>>> Nitin [VU3TYG]
>>>> Secretary, AMSAT INDIA
>>>> 
>>>> 
>>>> ------------------------------
>>>> *From:* Aayush Yadav <aayushyadav825 at gmail.com>
>>>> *To:* "amsat-bb at amsat.org" <AMSAT-BB at amsat.org>
>>>> *Sent:* Wednesday, 7 September 2016 10:25 PM
>>>> *Subject:* [amsat-bb] Pratham: IITB Student Satellite
>>>> 
>>>> Greetings everyone,
>>>> 
>>>> We, students of IIT Bombay, are glad to inform you that our 
>>>> project,
>>>> Pratham, is ready and expected to launch with PSLV-C35 in the last 
>>>> week
>>>> of
>>>> September. We would be really happy if  you all joined us in 
>>>> receiving
>>>> our
>>>> satellite's beacon, details given below:
>>>> 
>>>> Beacon:
>>>> Mode: CW
>>>> wpm: 35 words
>>>> Frequency: 145.980 MHz
>>>> 
>>>> Downlink:
>>>> Mode: FSK
>>>> Baudrate: 1200 bps
>>>> Frequency: 437.455 MHz
>>>> (To be switched on over France and India only)
>>>> 
>>>> We will update the information as soon as TLE's will be available.
>>>> 
>>>> Kind Regards.
>>>> Team Pratham
>>>> _______________________________________________
>>>> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum 
>>>> available
>>>> to all interested persons worldwide without requiring membership.
>>>> Opinions expressed
>>>> are solely those of the author, and do not reflect the official 
>>>> views of
>>>> AMSAT-NA.
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>>>> 
>>>> 
>>>> 
>> 
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership.
> Opinions expressed
> are solely those of the author, and do not reflect the official views
> of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite 
> program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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