The Gemini 8 Flight Journal

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Part 5: Orbit height adjustment Journal Home Page Part 7: Plane adjust burn

Gemini 8

Part 6: Phasing burn

Corrected Transcript and Commentary Copyright © 2025 by Tracy L. Scott and W. David Woods. All rights reserved.
Last updated 2025-09-02
Gemini 8 is in the midst of its orbital adjustments to catch up and rendezvous with its Agena target vehicle. The next burn of its engines is a 1-minute, 8-second burn to adjust the orbit's phase with respect to the Agena. This is calculated to occur at 2:18:25 GET.
001:47:05 Scott: Let's see. Have we got everything stowed that we want to stow?
001:47:10 Armstrong: No, not really. I've got to work on the TV monitor a little bit. My helmet - it's really not - doesn't really have a place to rest on that.
001:47:18 Scott: There isn't any. I thought there was supposed to be...
001:47:20 Armstrong: Yes, I did too.
001:47:25 Scott: We'll write it up.
001:47:37 Scott: Stow in here someday.
001:47:43 Scott: Day 2, Meal A.
001:47:44 Scott: See it?
001:47:45 Scott: There.
001:47:54 Scott: That doesn't sound right, does it?
001:47:56 Armstrong: That's for tomorrow morning, I guess. There must be another package over there someplace. Let me look in the Flight Plan to make sure.
001:48:22 Armstrong: Okay, It's in your right-hand food box.
001:48:25 Scott: I sort of wanted to get this darn thing cleaned out.
001:48:29 Armstrong: Yes.
001:48:41 Scott: Day 1, Meal B. I'll buy that.
001:49:32 Armstrong: Man, that's peculiar!.
001:49:34 Scott: What did you say?
001:49:37 Armstrong: The water is kind of peculiar.
001:49:39 Scott: Oh, great:
001:49:51 Armstrong: I think there's some air bubbles in it (water).
001:49:52 Scott: Is that right?
001:49:53 Armstrong: Yes.
001:51:18 Armstrong: They got some LOX in the water again.
001:51:20 Scott: Have they had the problem before?
001:51:22 Armstrong: Yes, they sure have.
001:51:46 Armstrong: Ready.
001:51:50 Scott: LOX.
001:51:56 Armstrong: What?
001:51:58 Scott: Do you want it?
001:52:00 Armstrong: Okay.
001:52:25 Scott: Sure does.
001:53:33 Armstrong: I find that there is a lot less room in this cockpit than I thought there was.
001:53:37 Scott: You hoped there was. Right?
001:53:43 Armstrong: There's a heck of a lot less room!
Communications via Antigua, US
001:53:44 Lovell: Gemini VIII, Gemini VIII, Houston CapCom. Over.
001:53:47 Armstrong: Go ahead, Houston.
001:53:49 Lovell: Roger. I have an update to your Phase Adjust Maneuver if you're ready to copy.
001:53:56 Scott: Stand by.
001:54:01 Scott: Just stick it on with Velcro. We'll get it later.
001:54:03 Lovell: Are you ready, VIII?
001:54:06 Scott: Stand by. We'll be ready in a second.
001:54:09 Lovell: Roger. We're standing by.
001:54:11 Armstrong: Where the beck did the Flight Plan Book go?
001:54:13 Scott: Do you have that?
001:54:15 Armstrong: Yes.
001:54:16 Armstrong: Okay. Let's take a look at it. I got this one.
001:54:20 Scott: Okay. Go ahead.
001:54:24 Scott: Houston, Gemini VIII. Go ahead.
001:54:26 Lovell: Roger. Your GET burn: 02:18:25; Delta-V, 50.6; Delta-T, 1 plus 08; yaw 0, pitch 0; Core 25, 00506; Cores 26 and 27, all zeros; thrusters aft, Maneuver Posigrade.
001:55:09 Scott: Roger. Understand. Phase-Adjust: 02:18:25; Delta-V, 50.6; 1 plus 08; 0 yaw, 0 pitch; 25, 00506; 26 and 27 all zeros; aft thrusters, Posigrade.
001:55:34 Lovell: Roger. That is correct. I hope you're enjoying your eating.
001:55:38 Scott: Oh, it's not bad at all.
001:55:40 Armstrong: They knew!
001:56:00 Armstrong: First meal at 1 plus 56. Saw a lot of air bubbles in the water.
Transcription break.
001:58:53 Armstrong: I saw the first star at 1:58 - correction 2:58:30, on the second revolution. The ground well lighted [garble].
Long transcription break.
002:08:29 Armstrong: Coming over a bright light on the ground at 2:08:28. Start [garble] light.
Long transcription break.
This is Gemini Control, Houston at 2 hours, 9 minutes into the flight of Gemini 8. The crew by now has probably completed their first meal in space. They were reported having their lunch at approximately an hour and 50 minutes into the flight. Meanwhile, the Surgeon's console here has passed on some information about heart rates at various points in the flight to date. During the launch phase, Neil Armstrong showed a high heart rate of 146 and the low during the powered phase of flight was 120. Neil's normal heart rate runs between 65 to 70, David Scott, meanwhile, reached a high during the launch phase of 128, his low was 91. And Scott normally runs about 55 beats per minute, During the burn - during the first burn - south of New Orleans, Neil's heart reached a peak rate of 105. At Loss of Signal at Antigua, his heart rate was 80. Dave Scott, during that burn, showed a heart rate of 75 and at Loss of Signal at Antigua, his heart rate was 60, We have some tape conversation from the Ascension station between Gemini 8 and Jim Lovell, here in Houston. We're ready to play that conversation for you now.
As usual, the PAO announcer is referring to a playback of communication that has already occurred.
This is Gemini Control, Houston as the spacecraft went over the Tananarive area, the ground and the spacecraft simply tagged up. There was no additional discussion. We're about five minutes away from our next maneuver of phasing adjust, which is programmed for 2 hours, 18 minutes, 25 seconds into the flight. You heard Jim Lovell update Neil Armstrong on the precise values of wanting this burn. We can confirm that the earlier burn was done apparently. There was some accelerometer bias in some of the guidance components which left some residual numbers in their incremental velocity indicators and these had to be burned off but this was done in the - we were satisfied that the initial maneuver was carried off successfully. This is Gemini Control, Houston.
002:18:30 Scott: [Garble] seconds.
002:18:34 Scott: Okay. We're burning.
002:18:46 Scott: 20 seconds.
002:18:56 Scott: 30 seconds.
002:19:10 Scott: 45.
002:19:24 Scott: 1 minute.
002:19:29 Scott: 5, 6, 7, 8,
002:19:39 Scott: [Garble] stop [garble].
002:19:42 Armstrong: [Garble] Stage 1 and zero.
002:19:44 Scott: Okay.
002:19:53 Armstrong: Want to burn right.
002:19:56 Scott: Okay [garble] and let's check it.
002:19:58 Armstrong: Okay.
002:20:00 Scott: Don't press.
002:20:04 Scott: [Garble.]
002:20:13 Scott: [Garble] you had a pretty long burn
002:20:30 Armstrong: Want to check it?
002:20:32 Scott: Yes.
002:20:37 Armstrong: We're going to back off and [garble].
002:20:42 Scott: [Garble] .0.
002:20:44 Armstrong: Okay.
002:20:45 Scott: [Garble.]
002:20:51 Armstrong: Zero, zero; you better check [garble].
002:20:52 Armstrong: I can't figure that 82 out.
002:20:53 Scott: I can't either
002:21:01 Scott: [Garble.]
002:21:02 Scott: Positive one.
002:21:03 Armstrong: [Garble] this way?
002:21:05 Scott: No, its not.
002:21:06 Armstrong: Now look at it.
002:21:08 Scott: Okay. You're right.
002:21:13 Armstrong: We were putting in 81. That's what's happened.
Transcription break.
Communications via Carnarvon, Australia
002:24:07 Carnarvon CC: Gemini VIII, Carnarvon CapCom.
002:24:12 Armstrong: Hello, Carnarvon. Gemini VIII.
002:24:14 Carnarvon CC: How you all doing?
002:24:15 Armstrong: Okay. We completed our burn on time, and residuals were removed. The OAMS is 88 percent.
002:24:25 Carnarvon CC: Okay. Your OAMS Prop is 80 percent?
002:24:27 Armstrong: 88 percent.
002:24:28 Carnarvon CC: 88. Okay. I copy that. You activated S-3 at 2 plus 10?
002:24:35 Armstrong: Stand by.
002:24:40 Armstrong: No. We missed it.
002:24:41 Carnarvon CC: Say again.
002:24:42 Armstrong: No. We missed it.
002:24:45 Carnarvon CC: Hang on there.
002:25:14 Carnarvon CC: Okay. I have a Plane-Adjust update. Let me know when you're ready to copy.
002:25:23 Armstrong: Stand by.
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Part 5: Orbit height adjustment Journal Home Page Part 7: Plane adjust burn