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#1
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Why can't Soyuz dock while a shuttle is present?
Quoting http://spaceflightnow.com/shuttle/sts115/060827postmmt/ --
"As it now stands, Atlantis must launch by Sept. 7 to complete its docked mission and depart before arrival of the Soyuz." What's the rationale behind this constraint? Orientation or thermal issues, perhaps, or insufficient life support on ISS to accomodate visiting Soyuz and shuttle crews at the same time? Something else? Just curious... another source also mentioned a mandatory 1-day interval between shuttle undock and Soyuz arrival, but didn't explain the reason. -- Jordan. |
#2
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Why can't Soyuz dock while a shuttle is present?
The main ossue that I've been told about
is ISS crew attention. They need to devote 100% of their time to Soyuz since they are performing a crew handover. Also, the two visiting crews are on different time zones and the ISS crew must sleep shift between them to get in chrono-sync. "Jordan Hazen" wrote in message ... Quoting http://spaceflightnow.com/shuttle/sts115/060827postmmt/ -- "As it now stands, Atlantis must launch by Sept. 7 to complete its docked mission and depart before arrival of the Soyuz." What's the rationale behind this constraint? Orientation or thermal issues, perhaps, or insufficient life support on ISS to accomodate visiting Soyuz and shuttle crews at the same time? Something else? Just curious... another source also mentioned a mandatory 1-day interval between shuttle undock and Soyuz arrival, but didn't explain the reason. -- Jordan. |
#4
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Why can't Soyuz dock while a shuttle is present?
Has this ever happened, or has the Soyuz crew
always taken manual control and made the docking? I can't recall any such case of a Soyuz docking being aborted out of the hands of the crew. "Jorge R. Frank" wrote In addition to the issues Jim mentioned, in the event of a Kurs failure the Soyuz will initiate an automatic collision-avoidance maneuver that stands a decent chance of hitting the orbiter if it happens close to ISS, since the Soyuz software doesn't "know" the orbiter is there and the orbiter extends well beyond the plane of the Soyuz docking ports. |
#5
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Why can't Soyuz dock while a shuttle is present?
A Soyuz did crash into the Mir once, although it was unmanned. Probably
enough though to raise the hairs on the back of people's necks about Soyuz maneuvers. "Jim Oberg" wrote in message ... Has this ever happened, or has the Soyuz crew always taken manual control and made the docking? I can't recall any such case of a Soyuz docking being aborted out of the hands of the crew. "Jorge R. Frank" wrote In addition to the issues Jim mentioned, in the event of a Kurs failure the Soyuz will initiate an automatic collision-avoidance maneuver that stands a decent chance of hitting the orbiter if it happens close to ISS, since the Soyuz software doesn't "know" the orbiter is there and the orbiter extends well beyond the plane of the Soyuz docking ports. |
#6
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Why can't Soyuz dock while a shuttle is present?
nope. garbled.
"cole smith" wrote in message ... A Soyuz did crash into the Mir once, although it was unmanned. Probably enough though to raise the hairs on the back of people's necks about Soyuz maneuvers. |
#7
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Why can't Soyuz dock while a shuttle is present?
cole smith wrote:
A Soyuz did crash into the Mir once, although it was unmanned. Probably enough though to raise the hairs on the back of people's necks about Soyuz maneuvers. The Progress was being remotely controlled without the use of Radar and with MIR crews that had not received adequate training for this TEST. |
#8
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Why can't Soyuz dock while a shuttle is present?
"Jorge R. Frank" wrote in message ... (Jordan Hazen) wrote in news:1156750371.296932 @coelacanth.aug.com: Quoting http://spaceflightnow.com/shuttle/sts115/060827postmmt/ -- "As it now stands, Atlantis must launch by Sept. 7 to complete its docked mission and depart before arrival of the Soyuz." What's the rationale behind this constraint? Orientation or thermal issues, perhaps, or insufficient life support on ISS to accomodate visiting Soyuz and shuttle crews at the same time? Something else? Just curious... another source also mentioned a mandatory 1-day interval between shuttle undock and Soyuz arrival, but didn't explain the reason. In addition to the issues Jim mentioned, in the event of a Kurs failure the Soyuz will initiate an automatic collision-avoidance maneuver that stands a decent chance of hitting the orbiter if it happens close to ISS, since the Soyuz software doesn't "know" the orbiter is there and the orbiter extends well beyond the plane of the Soyuz docking ports. But they should still be able to physically dock the Shuttle AFTER a Soyuz, correct? (barring the logistical reasons you give.) -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#9
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Why can't Soyuz dock while a shuttle is present?
"Jim Oberg" wrote in
: Has this ever happened, or has the Soyuz crew always taken manual control and made the docking? I can't recall any such case of a Soyuz docking being aborted out of the hands of the crew. Not recently. I do recall some older accounts of Soyuz rendezvous being "terminated in the automatic mode" or some such. I'm pretty sure the crew can prevent the auto-abort simply by taking over manually. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
#10
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Why can't Soyuz dock while a shuttle is present?
"Greg D. Moore \(Strider\)" wrote in
ink.net: But they should still be able to physically dock the Shuttle AFTER a Soyuz, correct? Yes, a shuttle can dock or undock regardless of the Soyuz/Progress configuration at the station. The reverse isn't true; joint flight rules prohibit a Soyuz or Progress docking or undocking with a shuttle present. -- JRF Reply-to address spam-proofed - to reply by E-mail, check "Organization" (I am not assimilated) and think one step ahead of IBM. |
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