April 2008 - AMSAT-BB - mailman.amsat.org

Delfi-C3 TLE's
by Wouter Jan Ubbels 28 Apr '08

28 Apr '08

Hi all, w.r.t TLE's for Delfi-C3, for now we advise everyone to keep using the "old" TLE's as published on our Mission Operations Page at http://www.delfic3.nl/index.php?option=com_content&task=view&id=93&Itemid=1… These seemed to match best on the last good pass over our groundstation this afternoon. 73! Wouter Jan Ubbels PE4WJ

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Re: DELFI C-3 F SECOND PASS
by Luc Leblanc 28 Apr '08

28 Apr '08

Forgot to mention DELFI C 3 was on 145.93mhz in the morning pass here FN36KA Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE

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DELFI C-3 F SECOND PASS
by Luc Leblanc 28 Apr '08

28 Apr '08

My first DELFI c3 TLM reception signal s6 TO s7 copy Q5 reception. The first low pass elevation has not been heard (Bad Keps) now all is working smootly. Here is a part of the 70KB file i got from this new bird from: DLFIC3 to: TLM a8 98 9b 40 40 40 00 88 98 8c 92 86 66 01 03 f0 f6 00 d4 01 01 15 45 14 56 14 63 11 74 0e 7e 0a 85 05 8b 00 8e b4 23 b0 2f ab 39 99 4a 7d 59 59 66 2e 72 04 7b 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0 cf 00 00 6f 80 17 b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 from: DLFIC3 to: TLM a8 98 9b 40 40 40 00 88 98 8c 92 86 66 01 03 f0 f6 00 e2 01 b6 83 cb ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ff 3f f9 fa 48 2c 6c 12 01 09 00 00 00 00 3b 00 80 83 4b 00 58 02 40 0c 00 70 0d 00 66 00 68 06 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 79 7b 3b 6f 00 00 00 00 from: DLFIC3 to: TLM a8 98 9b 40 40 40 00 88 98 8c 92 86 66 01 03 f0 f6 00 e3 01 01 3d 32 3c 50 3a 62 34 74 2a 7f 1e 87 0f 8e 01 93 6e 22 6c 39 68 47 5d 58 4d 65 37 6f 1c 79 02 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 cb b9 00 00 79 7b 3d 6f 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 from: DLFIC3 to: TLM a8 98 9b 40 40 40 00 88 98 8c 92 86 66 01 03 f0 f6 00 e5 01 01 41 31 3f 4d 3d 5e 37 70 2d 7b 20 83 10 8b 01 8f 6f 23 6d 3c 69 4b 5e 5c 4d 69 37 73 1c 7c 02 83 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 cd b5 00 00 7a 7b 41 72 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 Congratulations to the teams they make it!!!! "-" Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE

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CubeSats new TLE
by Mineo Wakita 28 Apr '08

28 Apr '08

Space Track: OBJECT A 1 32783U 08021A 08119.33805163 .00165610 00000-0 23146-1 0 23 2 32783 097.9217 179.2401 0029749 230.8058 129.0516 14.76344380 27 OBJECT B 1 32784U 08021B 08119.40514136 -.00000054 00000-0 00000+0 0 11 2 32784 098.0072 179.4195 0015546 332.7115 027.3251 14.80994958 31 OBJECT C 1 32785U 08021B 08119.40517004 -.00000054 00000-0 00000+0 0 19 2 32785 098.0039 179.4530 0012580 286.0559 073.9245 14.80543386 31 OBJECT D 1 32786U 08021D 08119.40511310 -.00000054 00000-0 00000+0 0 14 2 32786 098.0112 179.4423 0012438 298.8152 061.1764 14.80937264 34 OBJECT E 1 32787U 08021E 08119.47361555 -.00000052 00000-0 00000+0 0 14 2 32787 097.9345 179.3954 0032911 220.1231 139.8515 14.76313341 40 OBJECT A 1 32794U 08022A 08119.44406574 .00000040 88710-6 00000+0 0 28 2 32794 048.8128 300.5404 7477587 359.9142 134.7509 02.07074130 16

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New cubesats monitoring result
by Edward Chuang 28 Apr '08

28 Apr '08

Hi all, Monitoring the pass during 12:58 - 13:12 UTC over Taiwan, max. elev.=80 deg. Copied 3 cubesats CW signal as following: *CUTE 1.7+APD II 437.275 MHz cute86cba367382825ac643017 compass-1 **437.275 MHz compass29000000000000001602c31508 SEEDS 437.485 MHz jq1yguseedsg0d85ffe jq1yguseedsg0d28ffe jq1yguseedsg0d10ffe Compass-1 sounded a little bit weird! 73 Edward / BX1AD ----- P.S. I also recoded the frames **mentioned above. *

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cube sat keps
by Pedro Cruz 28 Apr '08

28 Apr '08

Hi to all Any one have the heps for the cube sats. Best 73 ! Pedro Cruz - cu2jx

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Correction: New Satellite Observations.
by Colin Hurst 28 Apr '08

28 Apr '08

Having listened to a recording of the pass mentioned below, the chirpy signal is crystal locked, but the doppler shift deviated significantly from the auto-tuning, which suggests the keps in use need some refinement. Unfortunately the two signals are only 300 Hz apart. >From the chirpy signal I was able to decode from the start of a sequence 00C01.A..29000000000000000.502C5... Apologies about jumping to the conclusion about the crystal. Colin VK5HI -----Original Message----- From: amsat-bb-bounces(a)amsat.org [mailto:[email protected]]On Behalf Of Colin Hurst Sent: Monday, 28 April 2008 10:41 PM To: amsat-bb(a)amsat.org Subject: [amsat-bb] New Satellite Observations. Observations from the pass 1242 UTC to 1255 UTC, over VK. Copied two CW signals on nominal 437.275. One was very unstable and chirpy with slow CW, the other was clean, fast CW, but quite weak in signal strength. The unstable signal drifted down the band very quickly, definitely not crystal locked. Also copied SEEDS on nominal 437.485, but may be slightly lower in frequency. Signal clean but very weak. Visible on Spectran but not decode-able. This pass was in Eclipse. Used auto-tracking throughout the pass, which may have been a retrograde move. Colin VK5HI. _______________________________________________ Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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New Satellite Observations.
by Colin Hurst 28 Apr '08

28 Apr '08

Observations from the pass 1242 UTC to 1255 UTC, over VK. Copied two CW signals on nominal 437.275. One was very unstable and chirpy with slow CW, the other was clean, fast CW, but quite weak in signal strength. The unstable signal drifted down the band very quickly, definitely not crystal locked. Also copied SEEDS on nominal 437.485, but may be slightly lower in frequency. Signal clean but very weak. Visible on Spectran but not decode-able. This pass was in Eclipse. Used auto-tracking throughout the pass, which may have been a retrograde move. Colin VK5HI.

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(no subject)
by Robert Turlington 28 Apr '08

28 Apr '08

Hi All can anyone recomend a doppler tuning program that will tune the ft847 in 1hz steps ,at the moment I am using Instant Tune but thats only 10hz as is HRDRegards Robert G8ATE _________________________________________________________________ 100’s of prizes to be won at BigSnapSearch.com http://www.bigsnapsearch.com

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New Sattelites Keps ????
by Raul Romero CA3SOC 28 Apr '08

28 Apr '08

Any Have Last Keps for New Satelitte Tnk Very Much Raul CA3SOC --------------------------------------------------------------------- "Are you still wasting your time with spam?... There is a solution!" Protected by GIANT Company's Spam Inspector The most powerful anti-spam software available. http://mail.spaminspector.com

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Re: Delfi-C3 HEARD, strong signal over the Delfi-C3 groundstation...
by GW1FKY＠aol.com 28 Apr '08

28 Apr '08

Hi Wouter, Glad to hear the good news - Also copied over here in the UK - South Wales - IO81EM. As with my report on Cute 1 , I was only using a THD-7 with its helical antenna. Regret although this I had been prepared to make a digital recording, I had some local interference from somewhere nearby however which badly effected the quality etc. I will try again later this evening and also perhaps use an Arrow antenna. Thanks again and further congratulations on the satellite now being confirmed as operational. Regards Ken Eaton GW1FKY Amsat -UK Amsat NA

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Re: DelfiC3 heard
by G0MRF＠aol.com 28 Apr '08

28 Apr '08

Hi all. Hooray! Can I recommend Spectran as a good piece of software for recording and displaying weak signals. The screen shows frequency and time and signal level so you can very easily adjust the tuning for 1600Hz required for the RASCAL decoding software. I used it to identfy Suitsat 1 and estimate its ERP. Set the sample rate for 44kHz to get the highest bandwidth and quality. _www.weaksignals.com_ (http://www.weaksignals.com/) Thanks David - Sadly at work and not near the radio..... In a message dated 28/04/2008 12:29:29 GMT Standard Time, rob_g8ate(a)hotmail.com writes: Hi All I managed to hear Delfi-c3b beacon this afternoon using spacetrack object A #32783 the Sat was running approx 1min early ,so far as I could tell ,the beacon was centred on 145.930+- doppler, at los the recorded frequency on my ft847 was 145.927.6 I was unable to decode the telemetry due to a shortcoming in my doppler control progarm in that it tunes in 10hz steps which is to high but will try and rectify this as soon as I can.At times the signal was s7 but with very deep fading using a 6 el quad with horiz pol.Regards Robert G8ATE

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Congrats to ISRO
by Prathap Kumar 28 Apr '08

28 Apr '08

We the members of Amsat India and the Indian Ham fraternity congratulate ISRO for the successful 10 pack satellite launch via the PSLV C9 this morning. We would also congratulate the DELFI team, CUTE team and the SEEDS team for their amateur radio satellites which are now placed in orbit. Looking forward to hearing the first telemetry in a few minutes which ofcourse is a low westrly pass for us. VU3TYG and myself would try to monitor and record. Looking forward to a the new exciting sats. Best 73 Pop VU2POP Secy Amsat India

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Delfi-C3 received in Belgium
by ON5QI Claude 28 Apr '08

28 Apr '08

Delfi-C3 received in Belgium during the third pass between 11:49 and 11:57 utc on 145.930 MHz. 194 packets received, decoded with RASCAL and sent to the command station. Signals were loud and decodable during 90 % of the pass. Congratulations to the team. Long life to Delfi-C3. 73 Claude ON5QI

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Delfi-c3 heard in io92jp
by Robert Turlington 28 Apr '08

28 Apr '08

Hi All I managed to hear Delfi-c3b beacon this afternoon using spacetrack object A #32783 the Sat was running approx 1min early ,so far as I could tell ,the beacon was centred on 145.930+- doppler, at los the recorded frequency on my ft847 was 145.927.6 I was unable to decode the telemetry due to a shortcoming in my doppler control progarm in that it tunes in 10hz steps which is to high but will try and rectify this as soon as I can.At times the signal was s7 but with very deep fading using a 6 el quad with horiz pol.Regards Robert G8ATE _________________________________________________________________ Search and win with BigSnapSearch.com http://www.bigsnapsearch.com

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Re: TS-2000X question
by Henk, PA3GUO 28 Apr '08

28 Apr '08

Domenico, Just tested this with Rob, PE1ITR. Myself using the TS2000X (TX), Rob receiving. Compared 144 FM vs 1244 FM/USB: quality was the same. Henk, PA3GUO ------------------------------------------------------------- Hi All, I got advise that the quality of modulation on 23 cm for the TS-2000X in SSB is not so good as in 2 meters and 70 cm. Any experience ? Tanks and 73" de i8CVS Domenico

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CUTE1.7 and SEEDS
by Miroslav Kasal 28 Apr '08

28 Apr '08

Both the CUTE1.7 (437.275) and the SEEDS (437.485) CW signals were monitored in Brno JN85HF during pass between 10.12 and 10.23. 73, Mirek OK2AQK

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Re: CubeSats launch congratulation!
by GW1FKY＠aol.com 28 Apr '08

28 Apr '08

Hi all. I have just copied Cute -1.7 over here in the UK (Wales - IO81EM) Using Kenwood THD-7 and just its helical antenna - copied CW on a frequency 437 .275 Mhz +/- doppler. The over head pass N//S was at approx. 1012 hrs Zulu and an max elevation about 76 degrees. Sorry I did not have any device with me to make a recording. Now looking out for a possible pass of Delfi C-3. Ken Eaton GW1FKY Amsat -UK Amsat NA

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ISRO launch
by vu3sxegmail 28 Apr '08

28 Apr '08

Hello All ISRO making history, congrats to all involved for the success of the launch on 10 satellites, fantastic feat. Does anyone know if any satellites can be tracked by Radio Amateurs, if so which frequencies, and satellites. Regards, Sundeep Shah. Vu3sxe / +91 94484 26365

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Delfi-C3 is ALIVE!!!!
by Wouter Jan Ubbels 28 Apr '08

28 Apr '08

Hi all, Delfi-C3 was heard by Rick Mann, while she was over the US. From the wav file Rick sent us, we can deduce that she is tranmitting on the backup frequency (145.930) in science mode. This is very very good news, we are all extremely excited. We have not been able to decode the wav file yet since it is rather noisy, but the satellite is definitely there. Note that Delfi-C3 decides by herself on which freq the transmitter comes up, so be sure to check both 145.870MHz and 145.930MHz. Any wav files, or if possible even decoded TLM using RASCAL or a KISS file is highly appreciated! 73 on behalf of an excited Delfi-C3 team Wouter Jan Ubbels PE4WJ

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Aloha SEEDS
by Robert Smith 28 Apr '08

28 Apr '08

Aloha I copied SEEDS this evening at 44 degrees el. in Honolulu. The KEPS provided by Mineo worked very well. I used an FM HT so I had to interpret the CW via graphics. There seemed to be a lot of polarity shifts. The CW sequence was: JQ1YGU SEEDS GO CDA FFF...... repeated with varying 3 letter groups following "GO." This was my first attempt with this bird so I hope my data is reliable. 73 to all and congratulations to the Nihon University Cubesat Team!!! Domo, arigato gozaimashita! Respectfully with Aloha robert NH7WN in Honolulu

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Re: No success with Delfi-C3
by Edward Cole 28 Apr '08

28 Apr '08

At 11:28 PM 4/27/2008, Delfi-C3 Mission Control wrote: >Edward Cole wrote: >> >>Is there any update on keps for Delfi-C3? Uploading the launch keps >>gave me questionable results with NOVA. Nothing heard here but not >>sure that I listened at the correct time. >> >>I will try again at 8:16utc pass for Cute-1.7 (keps per Hiroki >>Ashida), but will it be out of eclipse? We are in local night-time >>here in BP40IQ since 5:52utc. According to NOVA the sun terminator >>will be crossed by Cute-1.7 at 8:24utc northbound. I am heading to >>bed so hope to wake in an hour to observe on 144.870. I have not >>installed the telemetry sw so am only hoping to detect a signal. >> >>73 Ed - KL7UW >>lat=60.675N, lon=151.316W >>receiving with 4x 10 element x-yagis and mgf-1801 LNA to FT-847 >> >>At 09:18 PM 4/27/2008, Rick Mann wrote: >> >>> >>>Well, I went to a hilltop at the appointed time, but try as I might, I >>>heard nothing. >>> >>>Was Delfi-C3 really out of eclipse at 0455 - 0510 UTC? >>> >>> >>>-- >>>Rick >>> >>>_______________________________________________ >>>Sent via <mailto:[email protected]>AMSAT-BB(a)amsat.org. Opinions >>>expressed are those of the author. >>>Not an AMSAT-NA member? Join now to support the amateur satellite program! >>>Subscription settings: >>><http://amsat.org/mailman/listinfo/amsat-bb>http://amsat.org/mailman/listinfo/amsat-bb >>> >> >> >>_______________________________________________ >>Sent via <mailto:[email protected]>AMSAT-BB(a)amsat.org. Opinions >>expressed are those of the author. >>Not an AMSAT-NA member? Join now to support the amateur satellite program! >>Subscription settings: >><http://amsat.org/mailman/listinfo/amsat-bb>http://amsat.org/mailman/listinfo/amsat-bb >> >Delfi has been heard over north america, so keep tracking, it's transmitting! > >Bram >Delfi-C3 mission control Listened to pass a 8:16-8:28 utc 2008/04/28. Did not hear anything either at 144.870 or 144.930. Ed - KL7UW

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Re: No success hearing Delfi- C3
by Mika Siira 28 Apr '08

28 Apr '08

> >Nothing heard my QTH Winnipeg, Manitoba EN 19. Listened from 0500 UTC to >0510 UTC on 145.870 145.920-..930 >Dave I also get the same from my Dr (overweight) but I'm going to bed..... >good night all > >Gerry VE4GTB > >www.ve4gtb.com > Hello folks, I monitored first two passes during morning and didn't hear any signal from the sat here in northern Finland. Max. elevations were 3 degrees for the first pass and 17 degrees for the second (according to given keps for Delfi- C3). Mika, OH8MBN

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Heard Delfi-C3 at 063908 UTC
by Rick Mann 28 Apr '08

28 Apr '08

I heard Delfi-C3 on the second pass (San Francisco Bay Area), but not the first. Also, it was transmitting on 145.930 MHz (the backup frequency), not 145.870 MHz. The ICOM IC-R1500 didn't have the crackling you hear in the recording when listening on the speaker, but for some reason it got into the ADC: http://roderickmann.org/stuff/Delfi-C3.mov How very exciting! Congrats to all! -- Rick

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No success with Delfi-C3
by Rick Mann 28 Apr '08

28 Apr '08

Well, I went to a hilltop at the appointed time, but try as I might, I heard nothing. Was Delfi-C3 really out of eclipse at 0455 - 0510 UTC? -- Rick

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