Buzz Aldrin (LMP)

Cecil B. deAldrin is standing by for instructions.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We are not receiving your FM downlink yet. We are standing by.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We are receiving your FM downlink now. We are standing by for TV modulations on the signal.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. Radio check. Over.

Neil Armstrong (CDR)

Roger. Loud and clear. We think we are transmitting to you.

Bruce McCandless (CAPCOM)

Okay. We are not receiving it yet, 11, although we have confirmed presence of your FM downlink carrier.

Neil Armstrong (CDR)

Which switches do you want us to confirm?

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. You were just on the fringes of coverage from Goldstone. We have just had LOS at Goldstone, and we'd like to push on and get the PAD messages read up to you here shortly.

Neil Armstrong (CDR)

Roger. We are ready to copy.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. I am ready with your TLI-plus-90-minute abort PAD.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. I am ready with your TLI-plus-90-minute abort PAD.

Neil Armstrong (CDR)

Roger. Apollo 11 is ready to copy TLI plus 90.

Bruce McCandless (CAPCOM)

Roger. TLI plus 90, SPS G&N: 63481, minus 153, plus 132; GETI 004 10 25 38; NOUN 81, minus 04761, plus 00001, plus 53361; roll 180 193 000; HA is NA; plus 00203 53573 633 53349, sextant star 33 1578 122. The boresight star is not available. Latitude minus 0252, minus 02580 11887 34345 016 03 50. GDC align Vega and Deneb. Roll 071 291 341. No ullage, undocked. I have your P37 for TLI plus 5 hours. Over.

Bruce McCandless (CAPCOM)

Roger. P37 format, TLI plus 5: 00744 6485, minus 165, 02506. Read back. Over.

Michael Collins (CMP)

Roger. TLI plus 90, SPS G&N: 63481, minus 153, plus 132, 004 10 25 38, minus 04761, plus 00001, plus 53361, 180 193 000, not applicable, plus 00203 53573 633 53349, 33 1578 122, not available, minus 0252, minus 02580 11887 34345 016 03 50. Vega and Deneb, 071 291 341. No ullage, undocked. P37, TLI plus 5: 00744 6485, minus 165 02506. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Readback correct. For your information, Goldstone reports receiving approximately 1 minute of FM downlink carrier. We were getting ready to request you confirm on the S-band AUX switches, the S-band AUX tape switch to OFF and the S-band AUX TV switch to TV. Over.

Neil Armstrong (CDR)

I confirm that that is the configuration we're in.

Bruce McCandless (CAPCOM)

Roger. Let us do a little more detective work here and we'll see if we can come up with something.

Neil Armstrong (CDR)

Houston, Apollo 11 is ready to go ahead with the—extend the docking probe, and ready to go with the RCS hot fire when you're ready to monitor. Over.

Bruce McCandless (CAPCOM)

Roger. Go ahead with the probe, now.

Neil Armstrong (CDR)

Okay. We're ready to—for the hot fire check when you're ready.

Bruce McCandless (CAPCOM)

Roger. We're ready 11. Go ahead.

Neil Armstrong (CDR)

Roger. Here's the pitch.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We are seeing the pitch hot firing and it looks good.

Neil Armstrong (CDR)

Roger. Be advised that we are unable to hear them.

Neil Armstrong (CDR)

Have you seen all three axes fire?

Bruce McCandless (CAPCOM)

We've seen pitch and yaw; we've not seen roll to date.

Neil Armstrong (CDR)

Okay. I'll put in a couple more rolls.

Bruce McCandless (CAPCOM)

Okay. We've got the roll impulses, and you're looking good here.

Neil Armstrong (CDR)

Roger. Houston, Apollo 11. We're standing by for a GO for sequence logic ON.

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Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Go ahead and we'll watch you on TM.

Neil Armstrong (CDR)

Okay. Sequence logic, two of them. Sequence logic 1 and 2 coming up and ON.

Bruce McCandless (CAPCOM)

Apollo 11, this Houston. You are GO for PYRO ARM.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. If you will give us P00 in ACCEPT, we have a state vector update for you.

Bruce McCandless (CAPCOM)

Roger. It will probably be another 10 or 15 seconds. We're going to go up through the Vanguard. When you are ready to copy, I have your TLI PAD.

Michael Collins (CMP)

Roger. Ready to copy TLI PAD.

Bruce McCandless (CAPCOM)

Roger. TLI: 23514 179 071 001, burn time 547 104356 35575. Roll for SEP 357 107 041, 301 287 319. TLI 10-minute abort pitch, 223. Read back. Over.

Michael Collins (CMP)

Roger. TLI PAD: 23514 179 071 001 547 104356 35575 357 107 041 301 287 319. TLI 10-minute abort pitch, 223. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Roger. Would you read back DELTA-VC prime again? You were cut out by some noise.

Michael Collins (CMP)

Okay. Roger. I'm picking up the squeal here, also. DELTA-VC 104356. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Readback correct. Out.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We've completed the uplink; the computer is yours. You can go back to BLOCK. Would you verify that you have extended the probe? Over.

Neil Armstrong (CDR)

Roger. That's verified; the probe is extended.

Bruce McCandless (CAPCOM)

Roger. About 2 minutes to LOS on this stateside pass. AOS Canaries at 1 50 13. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Over.

Neil Armstrong (CDR)

Roger. Houston, Apollo 11. Loud and clear.

Bruce McCandless (CAPCOM)

Okay. On your service module RCS quad Bravo package temperature, we're showing it running a little low. Looks like about 20 degrees low—lower than the rest of the quads. Would you confirm that your RCS heater switch for quad Bravo is in PRIMARY? Over.

Neil Armstrong (CDR)

You're correct. It was not in PRIMARY. It was off. It's on now. Thank you.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Over.

Michael Collins (CMP)

Houston, Apollo 11. Go ahead.

Bruce McCandless (CAPCOM)

Roger. We've checked over the spacecraft and the launch vehicle guidance. They're both looking to be in good shape. We estimate you have better than a 99-percent probability of a guidance cut-off on the launch vehicle, so things are apparently holding in very well. For your information, MILA received approximately 1 minute of a usable TV picture, so apparently the system is working. And you're a little over a minute from LOS at Canary; AOS Tananarive is 2 hours 9 minutes and 18 seconds. Over.

Michael Collins (CMP)

Roger. We like those 99 numbers. Thank you.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston through Tananarive. How do you read?

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston standing by through Tananarive.

CommTech

Tananarive, Houston COMM TECH NET 1.

CommTech

Tananarive, Houston COMM TECH NET 1.

CommTech

Goddard voice, Houston COMM TECH NET 1.

MSFN

Goddard voice, reading you loud and clear.

CommTech

Roger. We cannot raise Tananarive.

CommTech

Houston COMM TECH, Tananarive.

CommTech

Roger, Tananarive. Are you receiving CAP COMM's voice, and are you uplinking it?

CommTech

Negative.

CommTech

Roger. Monitor again and I'll tell CAP COMM to make one more transmission.

CommTech

Roger.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston standing by through Tananarive. Over.

Bruce McCandless (CAPCOM)

Roger. Reading you loud and clear.

Neil Armstrong (CDR)

Houston, Apollo 11. We have the PYRO's armed.

Bruce McCandless (CAPCOM)

This is Houston. Roger. Out.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. One minute to LOS Tananarive; AOS at Carnarvon 02 25 30.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston through Carnarvon. Radio check. Over.

Neil Armstrong (CDR)

Roger, Houston through Carnarvon. Apollo 11. Loud and clear.

Bruce McCandless (CAPCOM)

Roger. You're coming in very loud and very clear, here. Out.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. You are GO for TLI. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Over.

Bruce McCandless (CAPCOM)

Roger. We'll be coming within range of the ARIA aircraft coverage, here, in about 1 minute. They're going to try uplinking both on S-band and on VHF this time. So if you turn your—make sure your S-band volume is turned up, we'd appreciate it. And we believe that we'll have continuous coverage from now on through the TLI burn. Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston through ARIA 4. Radio check. Over.

Buzz Aldrin (LMP)

Houston, we read you strength 4 and a little scratchy.

Bruce McCandless (CAPCOM)

Roger. We're reading you strength 5, readability about 3. Should be quite adequate.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. We're reading you readability about 3, strength 5. Sounds pretty good. Over.

Neil Armstrong (CDR)

Roger. We've got a little static in the background now.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston through ARIA 3. Radio check. Over.

Neil Armstrong (CDR)

Roger, Houston, Apollo 11. You are much clearer and adequately loud. Over.

Bruce McCandless (CAPCOM)

Roger, 11, You are coming in five-by-five here. Beautiful signal.

Neil Armstrong (CDR)

This is a lot better than this static we had previously.

Michael Collins (CMP)

And we got the time base fix indication on time.

Bruce McCandless (CAPCOM)

This is Houston. Roger. Out.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We just got telemetry back down on your booster, and it is looking good.

Neil Armstrong (CDR)

Roger. Everything looks good here.

Bruce McCandless (CAPCOM)

Key moment Apollo 11 leaves Earth's orbit: Apollo 11, this is Houston. Slightly less than 1 minute to ignition, and everything is GO.

Bruce McCandless (CAPCOM)

We confirm ignition, and the thrust is GO.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston at 1 minute. Trajectory and guidance look good, and the stage is good. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Thrust is good. Everything's still looking good.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Around 3-1/2 minutes. You're still looking good. Your predicted cut-off is right on the nominal.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. You are GO at 5 minutes.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. We show cut-off and we copy the numbers in NOUN 62.

Bruce McCandless (CAPCOM)

Apollo 11, Houston. Do you read?

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Do you read? Over.

Buzz Aldrin (LMP)

Roger, Houston. Apollo 11. We're reading a VI of 35579 and the EMS was plus 3.3. Over.

Bruce McCandless (CAPCOM)

Roger. Plus 3.3 on the EMS. And we copy the VI.

Neil Armstrong (CDR)

Hey, Houston, Apollo 11. That Saturn gave us a magnificent ride.

Bruce McCandless (CAPCOM)

Roger, 11. We'll pass that on. And, it certainly looks like you are well on your way now.

Neil Armstrong (CDR)

We have no complaints with any of the three stages on that ride. It was beautiful.

Bruce McCandless (CAPCOM)

Roger. We copy. No transients at staging of any significance. Over.

Neil Armstrong (CDR)

That's right. It was all—all a good ride.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. For your information, we expect the maneuver to separation attitude to begin at 3 plus 05 plus 03, and to be completed at plus 09 plus 20. Separation at 3 plus 15 plus 00.

Neil Armstrong (CDR)

Roger. Time to begin maneuver is 3 05 03, complete 3 09 20. Separation 3 plus 15 00.

Bruce McCandless (CAPCOM)

Roger. That separation should be 3 plus 15 03. My error in reading up.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. All the booster functions are proceeding normally. The sequencing is in good shape, and it doesn't look like they are having any problems at all. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Our preliminary data indicates a good cut-off on the S-IVB. We'll have some more trajectory data for you in about half an hour. Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. Over.

Neil Armstrong (CDR)

Hello, Houston. Hello, Houston. This is Apollo 11. I'm reading you loud and clear. Go ahead. Over.

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Spoken on July 16, 1969, 3:14 p.m. UTC (55 years, 4 months ago). Link to this transcript range is: Tweet

Bruce McCandless (CAPCOM)

Roger, 11. This is Houston. We had to shift stations. We weren't reading you through Goldstone. We show PYRO bus A armed and PYRO bus B not armed at the present time. Over.

Neil Armstrong (CDR)

That's affirmative, Houston. That's affirmative.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. You're GO for separation. Our systems recommendation is arm both PYRO buses. Over.

Neil Armstrong (CDR)

Okay. PYRO B coming armed. My intent is to use bottle primary 1, as per the checklist; therefore, I just turned A on.

Bruce McCandless (CAPCOM)

Roger. We concur with the logic.

Neil Armstrong (CDR)

Houston, we're about to SEP.

Neil Armstrong (CDR)

Key moment The Command Module docks with Eagle: SEP is complete.

Neil Armstrong (CDR)

… and primary and secondary propellant B went … SEP.

Bruce McCandless (CAPCOM)

That was secondary propellant on quad Bravo?

Neil Armstrong (CDR)

Quad Bravo, yes. Both the primary and secondary …

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Radio check. Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston broadcasting in the blind. Request OMNI Bravo if you read us. Request OMNI Bravo. Out.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. How do you read?

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. How do you read? Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. Do you read? Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Radio check. Over.

Bruce McCandless (CAPCOM)

Apollo 11, Apollo 11, this is Houston. Radio check. Over.

Bruce McCandless (CAPCOM)

Apollo 11, this is Houston. Radio check. Over.

Bruce McCandless (CAPCOM)

Roger. We're copying you about five-by-two, very weak. Can you give us a status report, please?

Neil Armstrong (CDR)

Roger. We are docked. We do have acquisition with the high gain at this time, I think.

Bruce McCandless (CAPCOM)

Understand you are using the high gain. Over.

Bruce McCandless (CAPCOM)

Roger. I read you very loud and clear, Buzz. Mike is pretty weak.

Buzz Aldrin (LMP)

Roger. We've got the high gain locked on, now, I believe; AUTO tracking now.

Bruce McCandless (CAPCOM)

Okay. You're coming in loud and clear, but Mike is just barely readable.