Apollo 11 Technical Crew Debriefing 1969

Cierioweny

ee ese

“= CONHDENTIAL™ 34
asl Pgs
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

APOLLO 1]
TECHNICAL
CREW DEBRIEFING

(U) ‘
JULY 31, 1969

f PREPARED BY:
¢ MISSION OPERATIONS BRANCH
FLIGHT CREW SUPPORT DIVISION

VOL. |

GROUP 4

Downgraded at 3-year
intervals; declassified
after 12 years

This cmaterial : Met nenes
ithin thi i ; ,

teanatilesion |e NOTICES This document may be exempt from apes Hie
prohibited by public disclosure under the Freedom of Infor-

aoe mation Act (5 U.S.C. 552). Requests for its re-
. cok lease to persons outside the U.S. Government

ees should be handled under the provisions of

esi NASA Policy Directive 1382.2. i

. CENTER

SIGNATOR

LOC


COLLINS

ARMSTRONG

COLLINS

ALDRIN

alten
~ CTONEIDEN THA is

I think particularly when you get into the later flights

of extended EVA's and lunar activity, somehow the crew
must place themselves in a frame of mind of looking on
the separation of the LM as the beginning of the flight
plan and to relax, get plenty of sleep, and conserve

their energies in all the events leading up to that

point. To arrive in lunar orbit tired can create prob-
lems and it's possible to do that if you don't approach

it in the right frame of mind.

I think Mike's hit the nail on the head. We did precisely
that. We got a lot of rest and got into lunar orbit eager
to go to work and that's a particularly fortunate position

to be in.

This is something we've talked about before the flight
and I don't know how you can get yourself in that frame
of mind but I think it is a frame of mind. You have to
get yourself convinced that there will be a nice relaxing

couple of days going to the moon.

The first unusual thing that we saw I guess was 1 day out
or something pretty close to the moon. It had a sizeable

dimension to it, so we put the monocular on it.

6-34

COLLINS

ALDRIN

COLLINS

ARMSTRONG

COLLINS

ALDRIN

ARMSTRONG

ALDRIN

How'd we see this thing? Did we just look out the window

and there it was?

Yes, and we weren't sure but what it might be the S-IVB.
We called the ground and were told the S-IVB was 6000 miles
away. We had a problem with the high gain about this

time, didn't we?

There was something. We felt a bump or maybe I just

imagined it.
He was wondering whether the MESA had come off.
I don't guess we felt anything.

Of course, we were seeing all sorts of little objects
going by at the various dumps and then we happened to see
this one brighter object going by. We couldn't think of
anything else it could be other than the S-IVB. We looked
at it through the monocular and it seemed to have a bit

of an L shape to it.
Like an open suitcase.

We were in PTC at the time so each one of us had a chance
to take a look at this and it certainly seemed to be with-

in our vicinity and of a very sizeable dimension.

_—GORBERTIAL


ARMSTRONG

ALDRIN

ARMSTRONG

ALDRIN

ARMSTRONG

COLLINS

ALDRIN

 CORDENTAT™ oe

We should say that it was right at the limit of the reso-
lution of the eye. It was very difficult to tell just
what shape it was. And there was no way to tell the size
without knowing the range or the range without knowing

the size.

So then I got down in the LEB and started looking for it
in the optics. We were grossly mislead because with the

sextant off focus what we saw appeared to be a cylinder.
Or really two rings.

Yes.

Two rings. Two connected rings.

No, it looked like a hollow cylinder to me. It didn't
look like two connected rings. You could see this thing
tumbling and, when it came around end-on, you could look
right down in its guts. It was a hollow cylinder. But
then you could change the focus on the sextant and it
would be replaced by this open-book shape. It was really

weird.

I guess there's not too much more to say about it other

than it wasn't a cylinder.

TONEDENTIAL


6-36

COLLINS

ALDRIN

COLLINS

It was during the period when we thought it was a cylinder
that we inquired about the S-IVB and we'd almost convinced
ourselves that's what it had to be. But we don't have
any more conclusions than that really. The fact that we
didn't see it much past this one time period — we really
don't have a conclusion as to what it might have been,

how big it was, or how far away it was. It was something
that wasn't part of the urine dump, we're pretty sure of

that.

Skipping ahead a bit, when we jettisoned the LM, you know
we fired an explosive charge and got rid of the docking

rings and the IM went boom. Pieces came off the IM. It
could have been some Mylar or something that had somehow

come loose from the IM.

We thought it could have been a panel, but it didn't

appear to have that shape at all.

That's right, and for some reason, we thought it might
have been a part of the high gain antenna. It might have
been about the time we had high gain antenna problems.
In the back of my mind, I have some reason to suspect that

its origin was from the spacecraft.


“CONEDEN TA a4

The other observation that I made accumulated gradually.
I don't know whether I saw it the first night, but I'm
sure I saw it the second night. I was trying to go to
sleep with all the lights out. I observed what I thought
were little flashes inside the cabin, spaced a couple of

minutes apart and I didn't think too much about it other

than just note in my mind that they continued to be there.

I couldn't explain why my eye would see these flashes.
Siete transearth coast, we had more time and I devoted
more opportunity to investigating what this could have
been. It was at that point that I was able to observe
on two different occasions that, instead of observing
just one flash, I could see double flashes, at points
separated by maybe a foot. At other times, I could see

a line with no direction of motion and the only thing

that comes to my mind is that this is some sort of pene-

tration. At least that's my guess, without much to sup-

port it; some penetration of some object into the
spacecraft that causes an emission as it enters the cabin
itself. Sometimes it was one flash on entering. Possibly
departing from an entirely different part of the cabin,
outside the field of view. The double flashes appeared
to have an entry and then impact on something such as

the struts. For a while, I thought it might have been

_CONBENTIAL


6-38

ALDRIN
(CONT'D)

ARMSTRONG

some static electricity because I was also able, in moving
my hand up and down the sleep restraint, to generate
very small sparks of static electricity. But there was
a definite difference between the two as I observed it
more and more. I tried to correlate this with the direc-
tion of the sun. When you put the window shades up there
is still a small amount of leakage. You can generally
tell within 20 or 30 degrees the direction of the sun.

It seemed as though they were coming from that general
direction; however, I really couldn't say if there was
near enough evidence to support that these things were
observable on the side of the spacecraft where the sun
was. A little bit of evidence seemed to support this.

I asked the others if they had seen any of these and,

until about the last day, they hadn't.

Buzz, I'd seen some light, but I just always attributed
this to sunlight, because the window covers leak a little
bit of light no matter how tightly secured. The only
time I observed it was the last night when we really
looked for it. I spent probably an hour carefully watch-
ing the inside of the spacecraft and I probably made

90 significant observations in this period.


~ COREIDENTIAT- se

ALDRIN Sometimes a minute or two would go by and then you'd see
the two within the space of 10 seconds. On an average,
I'd say just as a guess it was maybe something like one
a minute. Certainly more than enough to convince you
that it wasn't an optical illusion. It did give you a
rather funny feeling to contemplate that something was
zapping through the cabin. There wasn't anything you

could do about it.

ARMSTRONG It could be something like Buzz suggested. Mainly a

neutron or some kind of an atomic particle that would

be in the visible spectrum.


ees

am

“AIG PS
-——SCONFIDENTIAL gay

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

APOLLO 11
TECHNICAL
CREW DEBRIEFING

oo (U)

JULY 31, 1969

PREPARED BY:
MISSION OPERATIONS BRANCH

FLIGHT CREW SUPPORT DIVISION
VOL. II

GROUP 4

Downgraded at 3-year
intervals; declassified
after 12 years

Tals material ¢ NOTICE: This document may be exempt from ea Tonine

transmission or public disclosure under the Freedom of Infor- verson is
Prohibited by la mation Act (5 U.S.C. 552). Requests for its re-
lease to persons outside the U.S. Government

ne & should be hancled under the provisions of
eee NASA Pelicy Directive 1382.2.

poe
oo CENTER
te we

. ob

cmt

IAL
INDEXING DATA
DATE opR# _T. PGM SUBJECT

~
; .


ARMSTRONG

ALDRIN

ARMSTRONG

ALDRIN

ARMSTRONG

ALDRIN

ae
21.0 VISUAL SIGHTINGS

Most of the items in Section 21, Visual Sightings, have

been previously reported.

21.4 TRANSLUNAR AND TRANSEARTH FLIGHT
There was only one minor observation returning from the
Moon. Looking back at it, at a time after Mars had passed
behind the Moon, there was one time period where I imagined
that the image of Mars was coming from a region where it
couldn't come from, because it was in a dark portion of
the Moon. This obviously was an optical illusion of some

sort.

I suspect that it was, in fact, just immediately adjacent

to the horizon.

We must have looked at it immediately after it had come

from the back side.
Yes.

21.5 LUNAR ORBIT
In lunar orbit, following ascent, we did note and mention
to the ground that approaching CDH when the Earth came up
above the lunar horizon, I observed what appeared to be a

fairly bright light source which we tentatively ascribed

= TS
etm

~—SQNEIDENHAL


21-2

ALDRIN
(CONT'D)

“CONFIDENTIAL

to a possible laser. That seemed to be the best possible
explanation until we were coming back in the command module
approaching the Earth and were able to observe something
that gave about the same appearance. When putting the
monocular on the light source, it appeared as though it
was the reflection of the Sun from a relatively smooth body
of water such as a lake. I think we've revised our initial
conclusion as to what the source of that light was that we
saw coming from the Earth. If no one owns up to having
beamed the laser toward the Moon at that time, it was more
probably a reflection off a lake. I still think it's an
unusual phenomenon, at that distance, to see so bright a
source of light. In the film, it didn't appear as though

this was going to show up at all. The Earth was too bright.