Quickstart to the Moon - Revision history

imported>Tschachim: /* TLI */ typo

2008-12-08T12:34:43Z

TLI: typo

← Older revision		Revision as of 12:34, 8 December 2008
Line 80:		Line 80:
	\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.		\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize dV \|\| The most Delta-V the SIV-B can provide now is ALMOST 3.4km/s (dV, not Tot, see IMFD manual). We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about 3.~~3Km~~/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home. There is not a lot of room for error here, as if you calculate for too high a burn, you may find yourself heading somewhere unknown instead of to the moon because your SIV-B ran out of fuel. It's better to err on the side of not enough Delta-V in the calculation, as you can always fix that later in your mid course correction.		\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize dV \|\| The most Delta-V the SIV-B can provide now is ALMOST 3.4km/s (dV, not Tot, see IMFD manual). We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about 3.3km/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home. There is not a lot of room for error here, as if you calculate for too high a burn, you may find yourself heading somewhere unknown instead of to the moon because your SIV-B ran out of fuel. It's better to err on the side of not enough Delta-V in the calculation, as you can always fix that later in your mid course correction.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize dV \|\| With enough playing around, you can get down to 3.~~3Km~~/s.		\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize dV \|\| With enough playing around, you can get down to 3.3km/s.
	\|-		\|-
	\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG]]		\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG]]

imported>Tschachim: /* TLI */ Bugfix TLI dV

2008-12-08T12:23:56Z

TLI: Bugfix TLI dV

← Older revision		Revision as of 12:23, 8 December 2008
Line 80:		Line 80:
	\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.		\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize ~~Tot~~ \|\| The most Delta-V the SIV-B can provide now is ALMOST 4.~~4Km~~/s. We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about 4.3Km/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home. There is not a lot of room for error here, as if you calculate for too high a burn, you may find yourself heading somewhere unknown instead of to the moon because your SIV-B ran out of fuel. It's better to err on the side of not enough Delta-V in the calculation, as you can always fix that later in your mid course correction.		\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize dV \|\| The most Delta-V the SIV-B can provide now is ALMOST 3.4km/s (dV, not Tot, see IMFD manual). We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about 3.3Km/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home. There is not a lot of room for error here, as if you calculate for too high a burn, you may find yourself heading somewhere unknown instead of to the moon because your SIV-B ran out of fuel. It's better to err on the side of not enough Delta-V in the calculation, as you can always fix that later in your mid course correction.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize ~~Tot~~ \|\| With enough playing around, you can get down to 4.3Km/s.		\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize dV \|\| With enough playing around, you can get down to 3.3Km/s.
	\|-		\|-
	\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG]]		\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG]]

imported>PA-Ford: /* Transposition and Docking */

2008-03-17T23:09:10Z

Transposition and Docking

← Older revision		Revision as of 23:09, 17 March 2008
Line 102:		Line 102:

	===Transposition and Docking===		===Transposition and Docking===
	A basic breakdown of this procedure is [[Transposition and Docking checklist (Quickstart)\|here]].This is best done quite a while after the TLI. In the real missions it was done between three and four hours after ~~the~~ TLI. There are a number of reasons for that, but the most important is that by this time, your trajectory has become relatively linear. So if you point at an object (say the sun) it won't move on you. Ok, let's do that. You want to look at your upper left window (From the full size main panel, hit ctrl+Up then ctrl+Left. From the split panel, go to panel 1 then hit ctrl+Up.). You should see the sun somewhere near that window. Moving it to the right edge of that window will put it in a good spot to light up the docking target on the lunar module.		A basic breakdown of this procedure is [[Transposition and Docking checklist (Quickstart)\|here]].This is best done quite a while after the TLI. In the real missions it was done between three and four hours into the flight, about half an hour after TLI. There are a number of reasons for that, but the most important is that by this time, your trajectory has become relatively linear. So if you point at an object (say the sun) it won't move on you. Ok, let's do that. You want to look at your upper left window (From the full size main panel, hit ctrl+Up then ctrl+Left. From the split panel, go to panel 1 then hit ctrl+Up.). You should see the sun somewhere near that window. Moving it to the right edge of that window will put it in a good spot to light up the docking target on the lunar module.

	At this point, we are ready to separate from the SIV-B and get our LEM. Press J or use the switch on the panel (In the double vertical columns of covered black switches, it's the bottom one on the left column). You will start floating away from the SIV-B. That's ok, it's not very fast, and it's only in the forward direction.		At this point, we are ready to separate from the SIV-B and get our LEM. Press J or use the switch on the panel (In the double vertical columns of covered black switches, it's the bottom one on the left column). You will start floating away from the SIV-B. That's ok, it's not very fast, and it's only in the forward direction.

imported>Lassombra: /* TLI */

2007-11-15T14:53:08Z

TLI

← Older revision		Revision as of 14:53, 15 November 2007
Line 80:		Line 80:
	\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.		\| Left MFD \|\| 2 \|\| PRV until TEj is highlighted. Adjust to about 7k \|\| We want to be at least one orbit out before we start calculating.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize Tot \|\| The most Delta-V the SIV-B can provide now is ALMOST 4.~~3Km~~/s. We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about ~~4Km~~/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home.		\| Left MFD \|\| 2 \|\| Further adjust TEj to minimize Tot \|\| The most Delta-V the SIV-B can provide now is ALMOST 4.4Km/s. We don't want to tempt that margin, which is provided for safety purposes. A nominal maneuver seems to be about 4.3Km/s. Anything significantly less than that, and we simply are going to crash into the moon. Anything more than that, and we many not be able to slow down when we get there, or may not have enough fuel left after slowing down to get home. There is not a lot of room for error here, as if you calculate for too high a burn, you may find yourself heading somewhere unknown instead of to the moon because your SIV-B ran out of fuel. It's better to err on the side of not enough Delta-V in the calculation, as you can always fix that later in your mid course correction.
	\|-		\|-
	\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize Tot \|\| With enough playing around, you can get down to ~~about 4Km~~/s.		\| Left MFD \|\| 2 \|\| Adjust TEj and TIn to further minimize Tot \|\| With enough playing around, you can get down to 4.3Km/s.
	\|-		\|-
	\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG~~\|thumb~~]]		\| \|\| \|\| \|\| Your IMFD should look something like this: [[IMAGE:Pre-TLI.JPG]]
	\|-		\|-
	\| Left MFD \|\| 2 \|\| PG - AB \|\| This activates the Autoburn to TLI.		\| Left MFD \|\| 2 \|\| PG - AB \|\| This activates the Autoburn to TLI.
	\|}		\|}

	The scenario "Apollo 14 - Before TLI" Picks up about 10 minutes before TLI burn with the TLI calculated ~~and autoburn enabled~~. If you're having problems calculating the TLI, try loading this scenario up and fiddling with the numbers to get an idea of why the selected ones work.		The scenario "Apollo 14 - Before TLI" Picks up about 10 minutes before TLI burn with the TLI calculated. If you're having problems calculating the TLI, try loading this scenario up and fiddling with the numbers to get an idea of why the selected ones work.

			Once the burn is complete, you should see something like this in your IMFD (note, I opened IMFD's Map mode on the second MFD to get an idea of where we are actually going:
			[[IMAGE:Post-TLI.JPG]]

			Turns out, I didn't get enough Delta-V and am going to hit the moon. That's ok, because I have a midcourse correction coming up. In the real Apollo, the TLI would have been much more precisely calculated and would have resulted in a free return trajectory so that theoretically, if everything failed on the way there, they could simply ride gravity right to entry interface and come home mostly intact.

	==Trans-Lunar Coast==		==Trans-Lunar Coast==

imported>Lassombra: /* TLI */

2007-11-15T03:03:00Z

TLI

@@ Line 63: / Line 63: @@
 Calculating the TLI is a difficult process.  There is an [[TLI checklist (Quickstart)|article already in place about it]], so I'm simply going to post the "simple" version here.
-First, open IMFD on both main MFD's.  You'll want to set them to shared mode.
+This is however not as simple as the simple version would lead you to believe.  Also, the article mentioned uses IMFD 4.2.1 which, while sufficient, and actually quite effective, is not what we're using.  The latest IMFD is more accurate and uses more effective modes, so we're going to do the TLI calc here in checklist form.
-On one MFD select Course and "Off-Plane Intercept"  Set the TEJ to be greater than your orbit period (usually about 7-8K should be good.)  Then increase or decrease TEJ and TIN until you get a minimum burn time.  This is important, not because the SIVB has limited fuel (though it does) but mostly because the SPS has limited fuel, and we have to have just enough energy to get to the moon, so that lunar capture doesn't take an insane amount of force.
+{| class="wikitable"
-On the other MFD it's a good idea to set map.  This doesn't guarantee that you'll get an accurate projection, but it's nice to see what you're going to be able to expect.  The map becomes significantly more accurate on the same orbit as the TLI burn.
+The scenario "Apollo 14 - Before TLI" Picks up about 10 minutes before TLI burn with the TLI calculated and autoburn enabled.  If you're having problems calculating the TLI, try loading this scenario up and fiddling with the numbers to get an idea of why the selected ones work.
 ==Trans-Lunar Coast==

imported>Lassombra: /* Orbit */

2007-11-15T02:06:32Z

Orbit

← Older revision		Revision as of 02:06, 15 November 2007
Line 44:		Line 44:

	Orbiting the earth is a simple process. For the most part, you just ride along. In quickstart mode, there is no systems management that is required of you. However, there is much that is still available. For example, you can rotate so you have a clear view of the stars through all windows. While in earth orbit, you do not have linear RCS available. Circularizing the orbit, making a perfect approach over a target, these things that are typical of Orbiter are not usually done in Apollo, so we're going to skip over them.		Orbiting the earth is a simple process. For the most part, you just ride along. In quickstart mode, there is no systems management that is required of you. However, there is much that is still available. For example, you can rotate so you have a clear view of the stars through all windows. While in earth orbit, you do not have linear RCS available. Circularizing the orbit, making a perfect approach over a target, these things that are typical of Orbiter are not usually done in Apollo, so we're going to skip over them.

			We might want to turn off the computer however. You may have noticed it monitoring the ascent. But once on orbit, it's pretty useless until we get to the moon. So, let's do so.

			{\| class="wikitable"
			! Switch !! Panel !! Action !! Explanation
			\|-
			\| DSKY \|\| 1 \|\| V37E 00E \|\| Go to P00 or cmc idling program.
			\|-
			\| DSKY \|\| 1 \|\| V37E 06E \|\| Go to standby. The computer will ask you to confirm this.
			\|-
			\| DSKY \|\| 1 \|\| PRO \|\| Procede to standby. We won't be needing the computer till we get to the moon.
			\|}

	In the normal Apollo missions, the time of these first two parking orbits was used to test out the navigation equipment. Astronauts would take star sightings and input them into the computer which would align the IMU. On a later pass, they'd repeat, but then check the difference to measure IMU drift. This, along with several other factors regarding the health of the spacecraft would decide whether they were "Go for TLI." All of this inspection work is done automatically for you in Quickstart mode, and your ship always checks out. So, it's time to calculate TLI.		In the normal Apollo missions, the time of these first two parking orbits was used to test out the navigation equipment. Astronauts would take star sightings and input them into the computer which would align the IMU. On a later pass, they'd repeat, but then check the difference to measure IMU drift. This, along with several other factors regarding the health of the spacecraft would decide whether they were "Go for TLI." All of this inspection work is done automatically for you in Quickstart mode, and your ship always checks out. So, it's time to calculate TLI.

imported>Lassombra at 17:31, 14 November 2007

2007-11-14T17:31:24Z

← Older revision		Revision as of 17:31, 14 November 2007
Line 1:		Line 1:
	{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) ~~4.2~~.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}		{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 5.1 Beta 3] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}

	{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.}}		{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.

			On further review, I got as far as TEI and discovered that MFD 4.2.1 just didn't have the required tools. So I'm redoing everything before that with MFD 5.1 Beta.}}

	The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.		The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.

imported>Lassombra at 01:42, 14 November 2007

2007-11-14T01:42:16Z

← Older revision		Revision as of 01:42, 14 November 2007
Line 1:		Line 1:
	{{Attention \| message=~~This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Mid Course Corrections and Trans Lunar Coast.~~ To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 4.2.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update.}}		{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 4.2.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}

			{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.}}

	The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.		The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.

imported>Lassombra: /* Lunar Descent and Landing */

2007-11-14T01:33:38Z

Lunar Descent and Landing

← Older revision		Revision as of 01:33, 14 November 2007
Line 247:		Line 247:

	==Lunar Descent and Landing==		==Lunar Descent and Landing==
	~~{{Under Construction \| message=~~This ~~section~~ will ~~go into detail into~~ the ~~process of initiating Lunar Orbit~~ Descent ~~and~~ of the ~~final~~ landing phase.}}		Once you've undocked, there are a couple simple things you must do. After that, the lunar landing can proceed entirely automatically. First, you need to extend the landing gear.

			Go to panel 8 and select MASTER ARM to ON and LDG GEAR to FIRE. This deploys the landing pads.

			Go back to the main panel and click on the open area to the left or right of the AGC to bring up an MFD. Set it to Map mode and target Fra Mauro-Base. When the distance to Fra Mauro is around 900 Kilometers, enter V37E 63E on the AGC. At this point, the landing will take place automatically. If you want more control over the landing, check out [[LM landing checklist (Quickstart)\|LM landing checklist]].

			There are three scenarios included for this phase. "Apollo 14 - LM Before Powered Descent" Starts about 30 seconds from the initial ignition of the descent engine. It is possible to follow this all the way down to Fra Mauro.

			"Apollo 14 - LM Final Approach" starts about 10 seconds before the landing designation phase. If you only want to decide where to land, and don't much care how you got there, this scenario is for you. It will allow you to decide where to land, and then automate the landing.

			"Apollo 14 - LM Landed" is saved immediately upon touchdown. Antares has landed. This is a good start for Lunar EVA.

	==Lunar Ascent and Rendezvous==		==Lunar Ascent and Rendezvous==
	{{Under Construction \| message=This section is going to explain all the steps required to get back to the CSM from the moon.}}		{{Under Construction \| message=This section is going to explain all the steps required to get back to the CSM from the moon.}}

imported>Lassombra: /* Lunar Orbit Insertion */

2007-11-13T23:00:29Z

Lunar Orbit Insertion

@@ Line 167: / Line 167: @@
 | DeltaV Thrust || 1 || A or B Ungaurd and switch up || This arms the SPS to be controlled by the computer.
 |-
-| DSKY || 1 || Monitor burn || The computer will show the time to burn, and then the time left to complete the burn on the first row.
+| DSKY || 1 || Monitor burn || [[Simple AGC#Lunar Orbit Insertion|See text on use of AGC]]
 |}
@@ Line 199: / Line 199: @@
 From here on, there are two ways of completeing the next couple of maneuvers.  In either case, the end result is the same.  The two ways are different based on which mission you are flying.  We're going to present the method used on Apollo 14 on as opposed to the one used on Apollo 11 and 12.  In that case, the next thing that needs doing is descent orbit insertion.
 ==Lunar Descent and Landing==

← Older revision		Revision as of 17:31, 14 November 2007
Line 1:		Line 1:
	{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) ~~4.2~~.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}		{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 5.1 Beta 3] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}

	{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.}}		{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.

			On further review, I got as far as TEI and discovered that MFD 4.2.1 just didn't have the required tools. So I'm redoing everything before that with MFD 5.1 Beta.}}

	The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.		The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.

← Older revision		Revision as of 01:42, 14 November 2007
Line 1:		Line 1:
	{{Attention \| message=~~This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Mid Course Corrections and Trans Lunar Coast.~~ To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 4.2.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update.}}		{{Attention \| message=To use the related scenarios, you'll need Jarmo Nikkanen's [http://koti.mbnet.fi/jarmonik/Orbiter.html Interplanetary MFD (IMFD) 4.2.1] installed and active. If you can't find the referenced scenarios, make sure you do a CVS update and look in the Quickstart\Apollo 14 folder for the Quickstart to the Moon scenarios.}}

			{{Under Construction \| message=This is a work in progress as I follow Tschachim's flight and create screen shots and scenarios. So far, it is done through Lunar landing.}}

	The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.		The first thing to do is make sure you have [[Installation\|NASSP 7.0 Beta installed]]. As of the writing of this, it is entirely possible to get to the moon and back in quick start ("Orbiter") mode.