----- Original Message ----- From: "Armando Mercado" am25544@triton.net To: nigel@ngunn.net Sent: Monday, September 29, 2008 4:04 PM Subject: Re: [amsat-bb] Shenzhou object number & SpaceX Falcon
In April of this year, the Chinese launched Tianlian-1, their version of a geo-stationary Tracking and Data Relay Satellite (like NASA's TDRS) and made extensive use of it during the flight of Shenzhou 7. One of the test objectives in deploying the sub-satellite was to conduct communications through Tianlian-1, in addition to taking pictures of the Shenzhoz. So I suspect it is operating at many GHz's, transmitting in a modulation that amateurs will find difficult use, and not transmitting all the time.
Armando, N8IGJ
----- Original Message ----- From: "Nigel Gunn G8IFF/W8IFF" nigel@ngunn.net To: "Armando Mercado" am25544@triton.net Cc: amsat-bb@amsat.org Sent: Monday, September 29, 2008 9:48 AM Subject: Re: [amsat-bb] Shenzhou object number & SpaceX Falcon
Of course, the spacecraft, as launched, has split into 3 parts to extract the re-entry module, which has now landed so I guess the question is, which object is the satellite and is it transmitting anything we can usefully receive.
Space Track now lists an Objext H.
OBJECT A 1 33386U 08047A 08272.15013951 .00054573 00000-0 29582-3 0 158 2 33386 042.4044 178.2230 0005368 282.1563 235.6774 15.79173201 410 OBJECT B 1 33387U 08047B 08273.16486755 .00325302 82837-5 23439-3 0 190 2 33387 042.4065 171.1579 0089600 151.1146 338.4513 16.06393261 587 OBJECT C 1 33388U 08047C 08273.16548304 .17339353 77079-5 36395-2 0 218 2 33388 042.5562 171.1969 0068223 167.5297 192.7906 16.23206867 581 OBJECT D 1 33389U 08047D 08273.14301888 .09276831 78839-5 39833-2 0 195 2 33389 042.5365 171.6287 0107704 169.6583 340.4200 16.09045925 578 OBJECT E 1 33390U 08047E 08273.03387694 .04395134 77585-5 35557-2 0 47 2 33390 042.2885 173.1463 0175741 141.7480 301.2890 15.88629832 302 OBJECT F 1 33391U 08047F 08273.46256944 .04168032 77011-5 34082-2 0 49 2 33391 042.2350 170.6011 0173283 148.5087 208.4764 15.89010588 365 OBJECT G 1 33392U 08047G 08273.22238605 .00019872 00000-0 11175-3 0 72 2 33392 042.4049 171.6220 0006752 286.1477 212.5348 15.78777424 253 OBJECT H 1 33394U 08047H 08273.15670370 .00057461 00000-0 31173-3 0 37 2 33394 042.4132 172.0125 0005298 291.8156 195.4335 15.79138991 579
Armando Mercado wrote:
Greetings, There's been a thread on the BBS about which object is/was the Shenzhou 7 spacecraft. For what it is worth I have been using Object A keps. Central China Television (CCTV) covered the flight extensively and mostly live as it happened. Whenever they showed the big screen at mission control, my tracking program matched their screen, so it's Object A for me.
Hi Folks,
We have recently installed an M2 az/el system, with two of the controllers mentioned above. The controllers are separate units, linked with a single ribbon cable.
The units work OK when given raw commands using hyperterm, but only the last addressed unit seems to send back to hyperterm its info as it moves. Ie send a command to change Az, followed immeadiately by a command to change El, and only the El position appears in hyper term as its changing.
Command the az/el from the front panel of the units works OK, also.
When we try using 'standard' ham satellite software, eg Nova, nothing seems to happen. The rotors just dont budge.
If anyone has any experience in solving this problem, I'd love to hear from them
73s Jim G3WGM Genso Team F
participants (2)
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Armando Mercado -
Jim Heck