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Flying the Shuttle - Launch And Post Insertion Advanced: Difference between revisions
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Flying the Shuttle - Launch And Post Insertion Advanced (view source)
Revision as of 21:52, 7 August 2023
, 7 August 2023Minor spelling edits
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SpacegearGuy (talk | contribs) m (Minor spelling edits) |
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Then, we have to decide in item 10 the time of the burn. We gonna do it at next apogee, 20 mn from now (TTA) | Then, we have to decide in item 10 the time of the burn. We gonna do it at next apogee, 20 mn from now (TTA) | ||
MET is now 34mn06sec, so we want the ignition to be at 20+34=54 mn into the mission. | MET is now 34mn06sec, so we want the ignition to be at 20+34=54 mn into the mission. | ||
For that, '''item+00+00+54+00 EXE''' | For that, '''item 10+00+00+54+00 EXE''' | ||
Then, how much thrust will we add? We want to raise the orbit to a new apogee of 150 Nm ( ''Heads up: 2ft/sec equal in a raise of 1Nm of the orbit height'') | Then, how much thrust will we add? We want to raise the orbit to a new apogee of 150 Nm ( ''Heads up: 2ft/sec equal in a raise of 1Nm of the orbit height'') | ||
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Time to move to OPS 106 and to Post Insertion Actions | Time to move to OPS 106 and to Post Insertion Actions | ||
On keyboard, '''OPS 106 | On keyboard, '''OPS 106 PRO''' | ||
[[File:Ops-106.jpg|1000px|thumbnail|none]]<br /> | [[File:Ops-106.jpg|1000px|thumbnail|none]]<br /> | ||
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Now, time to see the changes made to the MC1.<br /> | Now, time to see the changes made to the MC1.<br /> | ||
''Every time we change something in the Nominal Bus Assignement Table (NBAT) through Spec 0, we need to do an OPS Transition or an OPS recall to see the changes applied'' (Which can be seen in'''SPEC 6 PRO''')<br /> | ''Every time we change something in the Nominal Bus Assignement Table (NBAT) through Spec 0, we need to do an OPS Transition or an OPS recall to see the changes applied'' (Which can be seen in '''SPEC 6 PRO''')<br /> | ||
We are in OPS 106, let's do an OPS recall which consist in calling back the same OPS than where we are<br /> | We are in OPS 106, let's do an OPS recall which consist in calling back the same OPS than where we are<br /> | ||
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Then we can transition towards OPS 2 with | Then we can transition towards OPS 2 with '''OPS 201 PRO'''<br /> | ||
We can verify that we are well in OPS 2 and UNIV PTG soft. | We can verify that we are well in OPS 2 and UNIV PTG soft. | ||
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Let's manoeuver the orbiter in payload opening attitude. | Let's manoeuver the orbiter in payload opening attitude. | ||
We want to have the bay (-Z body axes) looking to the Earth and the rear of the shuttle ( -X body axes) to be in the velocity vector. | We want to have the bay (-Z body axes) looking to the Earth and the rear of the shuttle ( -X body axes) to be in the velocity vector. | ||
We will use the Universal Pointing software ( '''OPS 201 | We will use the Universal Pointing software ( '''OPS 201 PRO''' in GNC major function) | ||
Item 8 and tgt 2 to specify center of earth as a target, and item 14 and body vector 3 to select - Z body axes as the body point vector. | Item 8 and tgt 2 to specify center of earth as a target, and item 14 and body vector 3 to select - Z body axes as the body point vector. | ||