PSAT PSK31 and LightSail-A
Psat0522-0034utc.wav, Psat0605-0052utc_PSK31.wav received by JA0CAW
PSAT Frequency
28.120MHz PSK31 Uplink (Primary Mission, see NOTE below.)
145.825MHz Racket Telemetry (1200bps AFSK)
435.350MHz PSK31 Downlink (FM 315Hz)
US Naval Academy Amateur Radio Club
PSAT report by JA0CAW
PSAT report by JE1CVL
PSAT report by PE0SAT
LightSail-1 and other CubeSats Launch with X-37B by AMSAT-UK
PSK31 and APRS CubeSat Status Update by AMSAT-UK
USNA Sat Status (day1) by Robert Bruninga
USNA Sat Status (day2) by Robert Bruninga
USNA Sat Status (day3) by Robert Bruninga
PSAT Status (day4) by Robert Bruninga
PSAT PSK31 FM downlink #1 by Robert Bruninga
PSAT PSK31 FM downlink #2 by Robert Bruninga
PSAT Tranponder Specification by Brno University of Technology
BricSat Transponder Specification by Brno University of Technology
PSAT etc. by JE9PEL (EN)
PSAT etc. by JE9PEL (JP)
I, JE9PEL could decode PSAT PSK31 signal at 22:20 UTC, 23 May 2015.
I used TLE of LightSail-A, and I received at 435.350MHz with the
intention of BRICsat PSK31, but it actually was a signal of PSAT PSK31.
The settings are "NFM reception in SDR#, and PSAT 315Hz / BRICsat 375Hz,
BPSK31 in MixW playback". I could decode finally as RX_frequency = 309Hz.
Because I noticed the part of the call sign of W3ADO-5 in the figure below,
I thought this was the signal from PSAT.
PSAT PSK31 Analysis
(C)ARRL
Received by JO1PTD at 22:08 UTC, 24 May 2015
PSAT PSK31 signal
PSAT PSK31 mp3
PSAT PSK31 Approach
Experimental Satellites Laboratory
PSAT Transponder WEB Specification
Example
> W3ADO-5 beacon B 019 09 22 784 250 +8
CALL identification of the beacon (callsign) W3ADO-5
beacon keyword indicating beginning of data beacon
MODE A or B (A - transmitter always on,
B - transmitter turns on, if BPSK31 signal is present) B
NOF number of frame (0 ... 999) 019
DET percentage of BPSK31 detection (0 ... 99%) 9%
AGC percentage of AGC operation (0 ... 99%) 22%
VC supply voltage (10 mVolts) 7.84V
IC power amplifier current (mAmps) 250mA
TMP temperature of PA transistor (deg C) +8deg
ULTRASat TLE
LightSail/ULTRASat TLE tracking
ULTRASat spacecraft descriptions
Atlas V ULTRASat Launch 2015
CubeSat Missions Flown
Ultrasat_jspoc.txt
AMSAT-BB
Thursday, May 28 16:30 UTC
ULTRASat1
1 90720U 15148.55800340 +.00015915 +00000-0 +41830-3 0 00151
2 90720 054.9957 305.7261 0249626 201.7290 191.9953 15.12934264001200
ULTRASat2
1 90721U 15148.55880183 +.00021762 +00000-0 +56569-3 0 00135
2 90721 054.9970 305.7165 0249435 201.7510 197.7276 15.13029622001208
ULTRASat3
1 90722U 15148.55988628 +.00024288 +00000-0 +63095-3 0 00148
2 90722 054.9917 305.7171 0249333 201.7254 202.1603 15.12996790001202
ULTRASat4
1 90723U 15148.56049123 +.00010056 +00000-0 +27012-3 0 00123
2 90723 054.9948 305.7217 0249980 201.6664 202.3594 15.12772433001061
ULTRASat5
1 90724U 15148.49354887 +.00009887 +00000-0 +26946-3 0 00127
2 90724 055.0103 306.0668 0250262 201.0171 186.6917 15.12357949001191
ULTRASat6
1 90725U 15148.43160443 +.00017459 +00000-0 +46574-3 0 00140
2 90725 055.0086 306.3265 0249761 200.8643 210.1314 15.12441351001185
ULTRASat7
1 90726U 15148.42781326 +.00013069 +00000-0 +35246-3 0 00135
2 90726 055.0081 306.3680 0249815 200.8687 189.0823 15.12394338001181
ULTRASat8
1 90727U 15148.43204319 +.00016865 +00000-0 +45053-3 0 00133
2 90727 055.0123 306.3380 0249797 200.7527 212.2775 15.12424359001189
ULTRASat9
1 90728U 15148.49387326 +.00017050 +00000-0 +45481-3 0 00110
2 90728 055.0131 306.0678 0249967 200.9166 188.8458 15.12425085001033
ULTRASat10
1 90729U 15148.55978801 +.00010570 +00000-0 +28186-3 0 00148
2 90729 055.0058 305.7490 0250157 201.7152 201.2267 15.12876352001201
The CubeSats are integrated into 8 P-POD deployers which are contained in the
NPSCuL built by the Naval Postgraduate School (NPS). The NPSCuL together with
the 8 P-PODs and 10 CubeSats is referred to as ULTRASat. ULTRASat's TLE is
currently available from the following two CalPoly's site.
Unique Lightweight Technology and Research Auxiliary Satellite
http://mstl.atl.calpoly.edu/~ops/ultrasat/ultrasat_jspoc.txt
http://mstl.atl.calpoly.edu/~ops/keps/kepler.txt
PSAT PSK31 successful QSO
A successful QSO between JA5BLZ and JA0CAW have been performed on 21:17 UTC,
28 May 2015. And I, JE9PEL found the site to get the related TLE.
We can now track PSAT using TLE of ULTRASat1.
PSAT: 145.825MHz FM 1200baud AX.25 telemetry 315Hz
PSAT: 28.120MHz SSB PSK31 uplink / 435.350MHz FM downlink 970Hz
PSAT PSK31 first QSO
PSAT PSK31 features matrix
PSAT PSK31 satellite transponder
PSAT PSK31 antenna for 28MHz uplink
PSAT digipeater ON
PSAT, ULTRASat1 90720
http://mstl.atl.calpoly.edu/~ops/keps/kepler.txt
http://mstl.atl.calpoly.edu/~ops/ultrasat/ultrasat_jspoc.txt
00:26-00:37 UTC, 7 Jun 2015, Ele 32 WN-N-ES, 145.825MHz 1200bps AFSK
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[00:32:18]
s#016785,0z200,GcbGcbGcbHcbHcbHcaHcaHcaHdaHc0Hd0Gd0
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[00:32:42]
T#508,857,073,130,129,413,00000000
JA0CAW comment: (Tnx.)
Fm JE9PEL To CQ Via PSAT,ARISS* <UI pid=F0 Len=25 >[22:53:39]
:CQ :Hello via PSAT
[NOTE] "propagation monitor"
> We are calling this PSK-31 transponder a "propagation monitor"
> because we have chosen the uplink channel to be the center of the
> ten-meter PSK-31 activity to assure that there are lots of signals
> to monitor instead of a dedicated satellite uplink channel. This
> ten meter PSK-31 monitor system allows users to monitor these
> signals from above the ionosphere where propagation effects will be
> noticeable. The downlink from the satellite is in the UHF satellite
> segment on 435.275 MHz where the entire passband can be seen.
> http://aprs.org/psat/AMSAT-2010c.doc
LightSail-A TLE
WB4APR N2YO NORAD code CalPoly number
----------- ----------- ----- ---- ---------- ------
PSAT ULTRASat1 90720
Langley 40652 025B
PSAT 40654 025D ULTRASat3 90722
BRICSat 40655 025E
LightSail-A ULTRASat7 90726
LightSail-A 40661 027L ULTRASat8 90727
BRICSat ULTRASat10 90729
----------- ----------- ----- ---- ---------- ------
We found LightSail-A = ULTRASat7 at a later date.
(C) PLANETARY Society
LightSail-A back ON
PSAT, ULTRASat1 90720
http://sail.planetary.org/missioncontrol.php
http://www.satobs.org/LightSail-A.html
16:01-16:15 UTC, 7 Jun 2015, Ele 29 S-E-EN, 437.4345MHz 9600bps FSK
1:Fm KK6HIT-1 To N6CP-X <UI R Pid=CC Len=248> [01:06:13R]
[IP] Fm 129.65.147.33 To 129.65.147.36 prot=UDP ttl=64 len=248
[UDP] src_port:50000 dest_port:50800 len=228 data=220
1:Fm KK6HIT-1 To N6CP-X <UI R Pid=CC Len=248> [01:07:28R]
[IP] Fm 129.65.147.33 To 129.65.147.36 prot=UDP ttl=64 len=248
[UDP] src_port:50000 dest_port:50800 len=228 data=220
1:Fm KK6HIT-1 To N6CP-X <UI R Pid=CC Len=248> [01:07:58R]
[IP] Fm 129.65.147.33 To 129.65.147.36 prot=UDP ttl=64 len=248
[UDP] src_port:50000 dest_port:50800 len=228 data=220
Sails in Space
http://www.planetary.org/blogs/jason-davis/2015/20150608-sails-in-space.html
(C)Planetary Society, DK3WN
(C)Planetary Society, DK3WN
LightSail-A was re-entry to the atmosphere in 14 June 2015.
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