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CX2SA > SATDIG 16.12.09 22:18l 451 Lines 11546 Bytes #999 (0) @ WW
BID : AMSATBB4662
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Subj: AMSAT-BB-digest V4 662
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Sent: 091216/2012Z @:CX2SA.LAV.URY.SA #:25513 [Minas] FBB7.00e $:AMSATBB4662
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. XW-1 == YAOGAN 8 ? (PE0SAT)
2. Re: XW-1 == YAOGAN 8 ? (Nigel Gunn G8IFF/W8IFF)
3. Re: XW-1 over Kuala Lumpur, Malaysia (Mineo Wakita)
4. Re: XW-1 over Kuala Lumpur, Malaysia (Sion Chow Q. C. (9W2QC))
5. Ao-51 mode V/S over Europe (Francesco Grappi)
6. Here is a very nice video about XW-1 (Andrew Glasbrenner)
7. Re: Here is a very nice video about XW-1 (Eric Knaps, ON4HF)
8. XW-1 over Sao Paulo, Brazil (PY2ZX)
9. Re: XW-1 == YAOGAN 8 ? (Nigel Gunn G8IFF/W8IFF)
10. XW-1 recording. (Eric Knaps, ON4HF)
11. Re: Here is a very nice video about XW-1 (Steve Meuse)
12. Re: Mode J filter (Steve Meuse)
13. Re: XW-1 == YAOGAN 8 ? (Alexandru Csete)
14. Re: XW-1 == YAOGAN 8 ? (Nigel Gunn G8IFF/W8IFF)
----------------------------------------------------------------------
Message: 1
Date: Wed, 16 Dec 2009 16:20:17 +0100
From: "PE0SAT" <pe0sat@xxxxx.xx>
Subject: [amsat-bb] XW-1 == YAOGAN 8 ?
To: amsat-bb@xxxxx.xxx
Message-ID: <20091216152017.026D423088@xx.xxxxx.xx>
Content-Type: text/plain;charset=iso-8859-1
The Keppler data in tle-new.txt has changed the name for object name
2009-072A to YAOGAN8. Is this another official name for XW-1?
73's
--
With regards PE0SAT
Internet web-page http://www.ham.vgnet.nl/
------------------------------
Message: 2
Date: Wed, 16 Dec 2009 15:38:11 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: XW-1 == YAOGAN 8 ?
To: pe0sat@xxxxx.xx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4B28FEE3.3090209@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
No, Yaogan-8 is the larger main payload, the 8th in a series of mainly
civillian imaging satellites.
If we fast forward a few days with the current keps
YAOGAN 8
1 36121U 09072A 09350.14442714 -.00000045 00000-0 00000+0 0 52
2 36121 100.4979 047.2280 0007533 028.3305 331.8410 13.16397965 131
XIWANG-1 (HOPE-1)
1 36122U 09072B 09350.14452292 -.00000045 00000-0 00000+0 0 77
2 36122 100.4974 047.2295 0007562 040.0327 320.1583 13.16283842 130
Yaogan takes the lead and Xiwang trails.
Is this correct that the higher mass satellite travels faster than the lower
mass of XW?
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@xxxxx.xxx www
http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP
Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN.
------------------------------
Message: 3
Date: Thu, 17 Dec 2009 00:45:49 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re: XW-1 over Kuala Lumpur, Malaysia
To: <amsat-bb@xxxxx.xxx>
Message-ID: <0D2E44977E0E4BB3A6795A66A5FB050E@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
XW-1 SSB seems to operate only over China.
36121U 09072A = YAOGAN-8
36122U 09072B = XIWANG-1 (HOPE-1, XW-1)
36123U 09072C = CZ-4C R/B
JE9PEL, Mineo Wakita
------------------------------
Message: 4
Date: Wed, 16 Dec 2009 12:14:23 -0500
From: "Sion Chow Q. C. (9W2QC)" <9w2qc@xxxxx.xxx>
Subject: [amsat-bb] Re: XW-1 over Kuala Lumpur, Malaysia
To: amsat-bb@xxxxx.xxx
Message-ID: <20091216121423.j3ux18cwjs4kg044@xxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Dear All,
Just a resent in case this one did not go through.
Here is a recording of the 2nd pass, 17th December 2009, 0005 hours
MYT, 12 degrees elevation. This is equivalent to 16 December 2009,
1605 UTC.
http://www.9w2qc.net/amsatbb/xw-1_171209_0005_MYT_12_deg.mp3
73,
Sion Chow Q. C.,
9W2QC, WQ2C.
------------------------------
Message: 5
Date: Wed, 16 Dec 2009 18:26:12 +0100
From: "Francesco Grappi" <f.grappi@xxx.xx>
Subject: [amsat-bb] Ao-51 mode V/S over Europe
To: <amsat-bb@xxxxx.xxx>
Message-ID: <251893435F9249F688EAD7595A35EC94@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Hi,
Strong signal at 16.50 to 17.00 utc over europe this evening from Ao-51 mode
V/S.
For entire pass the signal was very good over s-9 into 90 cm dish with Keps
downconverter.
Only twice during the entire orbit (3-4 seconds each), the signal dropped down
below
noise level.
No tackers, only a few people who spoke French on the frequency of AO-51
uplink.
73"
Frank IW4DVZ
------------------------------
Message: 6
Date: Wed, 16 Dec 2009 12:48:12 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Here is a very nice video about XW-1
To: Amsat-BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B291D5C.9090807@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
http://english.cctv.com/program/chinatoday/20091216/100966.shtml
73, Drew KO4MA
------------------------------
Message: 7
Date: Wed, 16 Dec 2009 19:05:41 +0100
From: "Eric Knaps, ON4HF" <eric.knaps@xxxxxxx.xx>
Subject: [amsat-bb] Re: Here is a very nice video about XW-1
Cc: Amsat-BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B292175.3000105@xxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi Drew,
I found the same video on YouTube.
http://www.youtube.com/watch?v=WwyTZT6JkC4
Thanks to Amsat China for this new satellite!
Eric Knaps
Waterstraat 30
B-3980 Tessenderlo
Belgium
Tel. +32472985876 (mobile)
http://www.on4hf.be
Andrew Glasbrenner schreef:
> http://english.cctv.com/program/chinatoday/20091216/100966.shtml
>
> 73, Drew KO4MA
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
>
>
>
------------------------------
Message: 8
Date: Wed, 16 Dec 2009 16:28:02 -0200
From: PY2ZX <py2zx.ham@xxxxx.xxx>
Subject: [amsat-bb] XW-1 over Sao Paulo, Brazil
To: amsat-bb@xxxxx.xxx
Message-ID: <4B2926B2.5000302@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hello,
XW-1 beacon well heard even without devoted sat antenna on receiver
site. Audio file: http://archangelo.net/misc/sat/xw-1/view.htm
Flavio PY2ZX GG66nt
------------------------------
Message: 9
Date: Wed, 16 Dec 2009 18:56:20 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: XW-1 == YAOGAN 8 ?
To: amsat-bb@xxxxx.xxx
Message-ID: <4B292D54.4090804@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
OK, I'll revise my earlier question and suggest a reply.
The physically larger satellite will have more atmospheric drag which will
spiral it into a lower
orbit. The lower orbit, the higher the velocity and thereforeit crosses
your horizon earlier.
Nigel Gunn G8IFF/W8IFF wrote:
>
> Is this correct that the higher mass satellite travels faster than the
lower mass of XW?
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), e-mail nigel@xxxxx.xxx www
http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP
Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN.
------------------------------
Message: 10
Date: Wed, 16 Dec 2009 20:09:04 +0100
From: "Eric Knaps, ON4HF" <eric.knaps@xxxxxxx.xx>
Subject: [amsat-bb] XW-1 recording.
To: amsat-bb <amsat-bb@xxxxx.xxx>
Message-ID: <4B293050.5020002@xxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Ok,
Here is my recording of the XW-1 cw beacon.
www.on4hf.be/16dec2009-18u20.wav
73,
Eric -- ON4HF.
--
Eric Knaps
Waterstraat 30
B-3980 Tessenderlo
Belgium
Tel. +32472985876 (mobile)
http://www.on4hf.be
------------------------------
Message: 11
Date: Wed, 16 Dec 2009 14:13:34 -0500
From: Steve Meuse <smeuse@xxxx.xxx>
Subject: [amsat-bb] Re: Here is a very nice video about XW-1
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: Amsat-BB <amsat-bb@xxxxx.xxx>
Message-ID: <20091216191334.GA3335@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Andrew Glasbrenner expunged (glasbrenner@xxxxxxxxxx.xxxxx
> http://english.cctv.com/program/chinatoday/20091216/100966.shtml
Makes me wondering if our German friends have had any discussions with the
Chinese launch authority....
-Steve
N1JFU - http://n1jfu.blogspot.com - smeuse@xxxxxxx
------------------------------
Message: 12
Date: Wed, 16 Dec 2009 14:16:29 -0500
From: Steve Meuse <smeuse@xxxx.xxx>
Subject: [amsat-bb] Re: Mode J filter
To: Jabi <ea2aru@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <20091216191629.GB3335@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Jabi expunged (ea2aru@xxxxxxxxx.xxxxx
> I want to buy one Mode J filter for work V/U mode.
I've been meaning to try this filter, I know PAR makes good quality products:
http://www.parelectronics.com/images/amateur_sat/modej_specs.htm
Of course, you could also just use a diplexer...
-Steve
N1JFU - http://n1jfu.blogspot.com - smeuse@xxxxxxx
------------------------------
Message: 13
Date: Wed, 16 Dec 2009 20:46:01 +0100
From: Alexandru Csete <alexc@xxxx.xx.xx>
Subject: [amsat-bb] Re: XW-1 == YAOGAN 8 ?
To: amsat-bb@xxxxx.xxx
Message-ID: <20091216204601.391105ff@xxxxxxx>
Content-Type: text/plain; charset=US-ASCII
The influence of the drag force also depends on the mass since F=m*a,
so the same drag force will cause less deceleration on a heavier
satellite. You have to put this together with F=pressure*surface_area
to take both the size and the mass of the satellite into account.
By the way, is there any significant atmospheric drag at 1200 km
altitude?
73
Alex OZ9AEC
On Wed, 16 Dec 2009 18:56:20 +0000
Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx> wrote:
> OK, I'll revise my earlier question and suggest a reply.
>
> The physically larger satellite will have more atmospheric drag which
> will spiral it into a lower orbit. The lower orbit, the higher the
> velocity and thereforeit crosses your horizon earlier.
>
> Nigel Gunn G8IFF/W8IFF wrote:
>
> >
> > Is this correct that the higher mass satellite travels faster than
> > the lower mass of XW?
> >
>
>
------------------------------
Message: 14
Date: Wed, 16 Dec 2009 19:58:23 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: XW-1 == YAOGAN 8 ?
To: Alexandru Csete <alexc@xxxx.xx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4B293BDF.9090503@xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
I don't know but something is causing the two satellites to drift apart.
Knowing the rules helps to sort out the keplerian elements of the two.
Alexandru Csete wrote:
> The influence of the drag force also depends on the mass since F=m*a,
> so the same drag force will cause less deceleration on a heavier
> satellite. You have to put this together with F=pressure*surface_area
> to take both the size and the mass of the satellite into account.
>
> By the way, is there any significant atmospheric drag at 1200 km
> altitude?
>
> 73
> Alex OZ9AEC
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 662
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