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#21
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Euro ATV carries Kurs
If the Kurs isn't connected to antennas on the exterior of ATV, well,
it will certainly be a payload, and not a navigation system. I am guessing that the Kurs outputs aren't being fed to the guidance system. "HAESSIG Frédéric Pierre Tamatoa" wrote in message ... I don't know about HTV, but ATV is using the same russian docking mechanism as progress at least as far as the mechanical parts go, so this is quite validated. As for approach, the first ATV flight will carry a KURS as a redundant ( payload ) system, in order to validate the european system. There are also numerous redundancies and ground and crew checks in the system. |
#22
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Can Russia invite China to ISS?
"HAESSIG Frédéric Pierre Tamatoa" wrote in
: Jorge R. Frank a écrit dans le message : ... Ben Sisko wrote in : ISS partners would demand that China first demonstrate that its systems are reliable enough to perform safe docking. This means China will have to do its own dockings with its own equipment a few times. The ISS partners would be on very shaky ground if they demanded a more rigorous testing program for Shenzhou than is currently being done with ESA's ATV and Japan's HTV. I don't know about HTV, but ATV is using the same russian docking mechanism as progress at least as far as the mechanical parts go, so this is quite validated. HTV uses the Common Berthing Mechanism (CBM), which is considered well- validated on the US side. As for approach, the first ATV flight will carry a KURS as a redundant ( payload ) system, in order to validate the european system. There are also numerous redundancies and ground and crew checks in the system. IIRC, the European system was also tested on a shuttle-Mir flight (STS-84), using a set of retroreflectors mounted to the US docking module on Mir to match the pattern of retroreflectors on the aft end of Zvezda, where ATV will dock. That system might have changed some since STS-84, though. Do you know? The HTV rendezvous/docking system was tested standalone on ETS-VII (Orihime and Hikoboshi) starting in 1997. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#24
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Euro ATV carries Kurs
Well, there are 2 different kinds of "Kurs outputs". There is a data,
and there are control signals for the flight computer. I don't think there exists a black box yet which translates Kurs control signals into anything the ATV flight computer can read. As for data, that's probably right, but there should be some rather large and obvious Kurs antennas on the outside of ATV, which I have yet to see. gcash wrote in message ... (Explorer8939) writes: If the Kurs isn't connected to antennas on the exterior of ATV, well, it will certainly be a payload, and not a navigation system. I am guessing that the Kurs outputs aren't being fed to the guidance system. wrote in message: I don't know about HTV, but ATV is using the same russian docking mechanism as progress at least as far as the mechanical parts go, so this is quite validated. As for approach, the first ATV flight will carry a KURS as a redundant ( payload ) system, in order to validate the european system. There are also numerous redundancies and ground and crew checks in the system. Or actually the KURS outputs will be compared to the guidance system solutions, to see how they differ. This is probably the point of the experiment. I'm sure it's connected to its own set of antennas. -gc |
#25
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Can Russia invite China to ISS?
"Jorge R. Frank" wrote in message ...
The HTV rendezvous/docking system was tested standalone on ETS-VII (Orihime and Hikoboshi) starting in 1997. And we all know what a great success that rendezvous and docking was. At any rate, ATV and HTV are using a common visual rendezvous system now. |
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