StudSat, TIsat - Launch successful



(C) Indian Express


Launch on July 12, 2010 at 03:52:00 UTC

The 51-hour countdown for the 17th flight launch of Indian space
agency's Polar Satellite Launch Vehicle PSLV-C 15 from Sriharikota
spaceport is expected to begin on Saturday morning. 

Preparations were in full swing for the launch of the PSLV-C-15 on
July 12. All the parameters for the launch were doing well and the
51-hour countdown was expected to start at 6 am tomorrow.

TIsat-1: University of Applied Sciences of Southern Switzerland
Uplink  : 145.980MHz FM, AFSK
Downlink: 437.305MHz FM, AFSK
Beacon1 : 437.305MHz CW Beacon      (a.m. JA)
Beacon2 : 145.980MHz FM Beacon, PSK (p.m. JA)
Callsign: HB9DE
http://www.spacelab.dti.supsi.ch/tiSat1.html

CW Beacon Decoder, TIsat-1 Demodulator
http://www.spacelab.dti.supsi.ch/tiSat1MS.php

StudSat: Nitte Meenakshi Institute of Technology, India
Uplink  : 437.505MHz, 9600bps FSK
Downlink: 437.505MHz, 9600bps FSK
Beacon  : 437.861MHz,   20bps ASK
http://www.teamstudsat.com/

http://www.indianexpress.com/section/technology/698/
http://www.indianexpress.com/news/51hour-countdown-for-pslvc15-launch-starts-tomorrow/644288/
http://www.ne.jp/asahi/hamradio/je9pel/suitsfun.htm


PSLV launch successful, 5 satellites placed in orbit, 03:52:00 UTC, 12 Jul 2010
http://www.indianexpress.com/news/pslv-launch-successful-5-satellites-placed-in-orbit/645264/

In its 16th successive, successful mission, the Polar Satellite Launch
Vehicle placed five satellites into the predestined orbit after a precision
launch on Monday, a feat that elated the space community as it came after
the failure of last launch.

The payloads included the latest remote sensing satellite CARTOSAT 2B,
a nanosatellite fabricated by students of a consortium of private engineering
colleges in Karnataka and Andhra Pradesh, ALSAT-2A of Algeria, AISSAT-1
of Canada and TISAT of Switzerland. 


ISRO (Indian Space Research Organisation)

http://www.isro.org/
http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Jul12_2010
http://www.isro.org/satellites/studsat.aspx


Earlier TLE
TIsat-1
1 99998U 10034Y   10193.17708333  .00002592  00000-0  35304-3 0 00007
2 99998 098.1177 252.3288 0008033 272.0048 315.2117 14.78702228001648
StudSat
1 99999U 10017A   10193.17545602  .00005688  00000-0  78575-3 0  1239
2 99999  98.1181 252.4184 0007783 262.6107 315.9229 14.78186114    13

Space-Track TLE
OBJECT A
1 36795U 10035A   10193.20196392 -.00000056  00000-0  00000+0 0    10
2 36795 098.1472 252.3491 0017064 267.1770 092.7616 14.80743821    17
OBJECT B
1 36796U 10035B   10193.26958577  .00000697  00000-0  10000-3 0    13
2 36796 098.1553 252.4165 0010939 266.7868 093.2077 14.79690291    22
OBJECT D
1 36798U 10035D   10193.33715352  .00000701  00000-0  10000-3 0    11
2 36798 098.1402 252.4913 0012563 282.0763 077.7431 14.79927172    20
OBJECT E
1 36799U 10035E   10193.33715352  .00000715  00000-0  10000-3 0    17
2 36799 098.1494 252.4807 0015560 290.6196 069.3302 14.80690944    30
OBJECT F
1 36800U 10035F   10193.26920026  .00000835  00000-0  10000-3 0    11
2 36800 098.0894 252.2980 0026340 032.3291 327.9511 14.86685309    20


StudSat-TIsat - Launch successful

Subject: [amsat-bb] Re: StudSat-TIsat - Launch successful
From: Alan Cresswell
Date: Mon, 12 Jul 2010 09:40:52 -0000

Good signals from TIsat over ZL 0926 to 0936 when the signals stopped
abruptly shortly before predicted LOS.

HI HI HI TISAT H
HI HI HI TISAT H

Etc

Alan
ZL2BX


TIsat-1 heard! by JE9PEL

13:02-13:12UTC, 12 Jul 2010, Mel 11deg

HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K
HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K
HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K
HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K HIHIHI TISAT K
HIHIHI TISAT K HIHIHI TISAT K


Decoding table for TIsat-1 early beacon messages

During the early days of TIsat-1 mission, the beacon send continuously
during the day the message "HI HI HI TISAT" followed by a Morse character
indicating the temperature of the transmitter. The beacon is turned off
during eclipse to avoid stress of the batteries. This message is repeated
each 15s and is encoded with 17 WPM. The radio used as beacon has been
developped completely in SUPSI with the help of local HAMs.
The following table allows to translate the last character of the message
into the relative temperature expressed in Celsius degrees.

Character      F   B   K   R   H   N   T   E   I   S   A   D   M   U   5   L
Temperature  -10  -5   0  +5 +10 +15 +20 +25 +30 +35 +40 +45 +50 +55 +60 +65

We invite to keep note of the received messages and temperatures.
A Web application to upload these information will be soon available.
http://www.spacelab.dti.supsi.ch/tiSat1MS.php


TIsat-1 CW Beacon Decoder

Register, phpBB SSL - SUPSI Space Laboratory
Download, TIsat-1 CW Beacon Decoder




http://www.spacelab.dti.supsi.ch/collected_data.php


SUPSI SpaceLab TIsat-1 Beacon Report
Created on :	Sat Jul 24 09:12:45 JST 2010
Latitude :	35.4N
Longitude :	139.6E
----------------------------------------------------------------
Acquisition timestamp	Orbit #	Packet	Temperature
2010-07-23 23:50:00 	175 	HI HI HI TISAT B 	(-5C)
2010-07-23 23:50:14 	175 	HI HI HI TISAT B 	(-5C)
2010-07-23 23:50:28 	175 	HI HI HI TISAT K 	(0C)
2010-07-23 23:50:42 	175 	HI HI HI TISAT K 	(0C)
----------------------------------------------------------------
End of log


StudSat live updates

12Jul10 09:22IST  PSLV is launched on 12th Jul 2010 at 09:22 AM IST from Sriharikota, AP, India.
12Jul10 09:44IST  STUDSAT Successfully separated from PSLV and it was put in to its 637kms
                  polar sun synchronous orbit.
12Jul10 11:02IST  STUDSAT beacon signal recieved at the tracking station in NMIT
12Jul10 21:52IST  STUDSAT beacon was heard my HAMs all over Bangalore, India. Thanks for all
                  the HAMs for getting back to STUDSAT. Kindly keep updating. 
14Jul10 22:20IST  STUDSAT Beacon was heard again.
15Jul10 08:30IST  NASTRAC received the Telemetry Data with some noise & Captured the FSK
                  modulated signal.
15Jul10 10:23IST  NASTRAC received the Telemetry Data with packets separated & confirmed
                  the satellite is in mission mode.


StudSat Mission Mode

Subject: Frequency Clarification
From: mamatha rm
Date: Mon, 19 Jul 2010 10:04:07 +0530

Hi,
Yes we are operating in the same frequency that is 437.861MHz
for Beacon. We have received the Beacon in the same frequency.

Thanking you,

Mamatha
(Team STUDSAT)


StudSat reference:
Satellite Completed the beacon mode of communication and has entered the mission mode,
where in it will transmit encrypted data at 437.505 MHz and will not send the beacon.
http://www.teamstudsat.com/live.html


TIsat-1 reference:
11:39 and 13:14UTC, 29 Dec 2011, 145.980MHz FM beacon
  mp3 --> vvv hb9de tisat1 k

01:05-01:17UTC, 30 Dec 2011, Ele 55 N-E-S, 437.305MHz CW beacon
2011-12-30 01:15:00 7929 HI HI HI TISAT B
2011-12-30 01:15:07 7929 HI HI HI TISAT B
2011-12-30 01:15:14 7929 HI HI HI TISAT B
2011-12-30 01:15:21 7929 HI HI HI TISAT K
2011-12-30 01:15:28 7929 HI HI HI TISAT K




How to decode TIsat-1 PSK
http://ja0caw-je0mzi.mo-blog.jp/syumi/2013/01/tisat-demodulat.html


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