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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by molesworth on Today at 04:18:58 PM »
Oh man the reflection of Earth on the car and starman's helmet - just amazing!

I see what you mean. That is poetic.

There are literally DOZENS of great shots that can be pulled off that feed. SpaceX should be up for a Pulitzer Prize.

There is a Pulitzer for self promotion via stupid stunts now?


Pulitzer Prize for best photograph. Self promotion via stupid stunts? The Falcon Heavy launch probably produced the most inspiring space images since Earthrise. I most respectfully and vehemently disagree with you on this one.
Indeed!  The whole launch sequence, first stage landings, and Starman in orbit are amazing, and hopefully will inspire yet another generation to get into science, engineering and related areas.

As for self-promotion, there's nothing wrong with that, given Musk's commitment to making the world a better place in many ways.  It was a first test, so there was never going to be any commercial payload, and even e.g. student projects would have been at very high risk, which would have been pretty devastating for the teams if it had gone wrong.

I'm looking forward to the first payload-carrying launch, near the end of this year if it stays on schedule.
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The Hoax Theory / Re: Faking the moon landings
« Last post by ka9q on Today at 04:09:42 PM »
As an afterthought - have any amateurs done any work on receiving imagery from e.g. lunar orbiting spacecraft?  I know there were plenty listening in on Apollo audio transmissions, and there was some recent work by amateurs to get a defunct satellite back into action again, so it might, in theory be possible.  (I've just bought a cheap SDR dongle to make a weather satellite receiver, so technically it could be possible.)
Probably not, though each case has to be individually analyzed. Modern digital communications tends to be all or nothing. Either you have an antenna big enough (and a receiver quiet enough) to receive a signal with a certain power and data rate over a given distance or you don't. Modern lunar and planetary probes generally store up their data and then transmit it to earth at prearranged times at the highest data rate that the intended receiver can handle. Unless you have an equally good (or better) receiving station nearby at the same time, you won't get anything.

Depending on how they are designed, you may get certain components of a deep space signal. For example, some years ago the AMSAT-DL group used the 20m dish at Bochum, Germany, to receive Voyager 1's carrier signal. The link budget was far too poor to permit actual reception of data. However, it was still a pretty good accomplishment. The same dish is routinely used to receive the real time science downlink from the STEREO spacecraft because the data rate is low and continuous. It can't receive the high speed dumps to the DSN.

The Apollo signals were all analog, except for telemetry (a fairly primitive digital format). The hams who received the CSM in lunar orbit only got the voice on a narrow band FM (frequency modulated) subcarrier on a PM (phase modulated) main carrier. The PM modulation index was low enough that the NBFM subcarrier could be extracted separately from the rest of the composite signal (telemetry, ranging, etc).

Video was completely out of the question as it required wideband FM on the main carrier. Larry Baysinger got Neil Armstrong's voice by listening to the VHF AM transmitter on his backpack, not Eagle's wideband FM transmission to earth on S-band.

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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by molesworth on Today at 04:07:11 PM »
Of course there are.  The question is whether they are true (dis)believers or just trolling.  Every YouTube video of every rocket launch (SpaceX or not) has some jackass going "I can't believe you sheeple are falling for this, it's obviously fake."  I'm convinced that well north of 90% of them are doing so just for the lulz.  Of the remainder, I'm convinced at least half some are Russians agents provocateurs  trying to sow doubt and confusion (and succeeding beyond their wildest dreams in some quarters). 
Can we please NOT blame everything on Russian agents?  It's getting close to xenophobia.
Спасибо, товарищ!  ;D
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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by AtomicDog on Today at 10:05:22 AM »
Oh man the reflection of Earth on the car and starman's helmet - just amazing!

I see what you mean. That is poetic.

There are literally DOZENS of great shots that can be pulled off that feed. SpaceX should be up for a Pulitzer Prize.

There is a Pulitzer for self promotion via stupid stunts now?


Pulitzer Prize for best photograph. Self promotion via stupid stunts? The Falcon Heavy launch probably produced the most inspiring space images since Earthrise. I most respectfully and vehemently disagree with you on this one.
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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by jfb on Today at 10:04:32 AM »
I decided to go back and find the exact moment in the video. It starts at 1:18:24 in the feed.


Around the 1:12 time I see 4 diagonal lines on the right of the video.  Since I haven't read much on this mission, does anyone know what those 4 lines are?

You're talking about the 1 hour 12 minute mark?  That's one of the camera mounts.  There's also a camera mount in front of the car (that's the thing you see through the windshield from the cabin view). 
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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by bknight on Today at 09:09:45 AM »
I decided to go back and find the exact moment in the video. It starts at 1:18:24 in the feed.


Around the 1:12 time I see 4 diagonal lines on the right of the video.  Since I haven't read much on this mission, does anyone know what those 4 lines are?
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General Discussion / Re: Kids say the darnedest things...
« Last post by Kiwi on Today at 09:03:57 AM »
Three-year-old visitor climbed onto my lap so I could help cover her eyes while she, her two older sisters and I watched the first scary part in “Jurassic Park” where the T-Rex attacks the two children in the car. After things had calmed down and she could watch again, she started to play with my belt buckle, and I guessed it was because the buckle was a big, shiny chrome one. She continued for quite some time and was obviously thinking something, so I asked, "What are you doing?"

With a big grin, she answered, "I dunna take dim an' trow dim away!"

"What?!! What are you going to throw away?"

"'Or pants!"

With a big laugh, I said, "Oooh! That would be awful. I'd have nothing on!"

Quick as a flash she jabbed a finger into my shirt and chest and answered, "Oo'd av dat on!"

"But I'd have nothing on the bottom! What would your mum say if I told her you'd thrown away my pants?"

"I'd tell on oo!"

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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by Dalhousie on Today at 05:46:35 AM »
Oh man the reflection of Earth on the car and starman's helmet - just amazing!

I see what you mean. That is poetic.

There are literally DOZENS of great shots that can be pulled off that feed. SpaceX should be up for a Pulitzer Prize.

There is a Pulitzer for self promotion via stupid stunts now?
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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by Dalhousie on Today at 05:45:18 AM »


Of course there are.  The question is whether they are true (dis)believers or just trolling.  Every YouTube video of every rocket launch (SpaceX or not) has some jackass going "I can't believe you sheeple are falling for this, it's obviously fake."  I'm convinced that well north of 90% of them are doing so just for the lulz.  Of the remainder, I'm convinced at least half some are Russians agents provocateurs  trying to sow doubt and confusion (and succeeding beyond their wildest dreams in some quarters). 


Can we please NOT blame everything on Russian agents?  It's getting close to xenophobia.
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The Hoax Theory / Re: The sun and stage lamps, revisited.
« Last post by Ian R on Today at 01:30:30 AM »
I think I may have stumbled across a fuller explanation as to why the Sun looks so large in the Apollo surface imagery (in addition to the well-known effect caused by blooming from a bright and over-exposed object).

In David Woods's excellent all-round guide to the 'hows' and 'whys' of the Apollo missions (How Apollo Flew to the Moon), he explains that the reseaux plate in the back of the Hasselblad cameras were coated with a thin and transparent layer of gold, to prevent a build-up of static electricity (which presumably could have been generated by the friction of the film moving over the glass plate after each exposure).

This is a crucial and telling point, I believe, as almost every photograph that shows a bright halo surrounding either the Sun or a bright reflection was taken with a camera fitted with a gold-coated reseaux plate.

Here are a few cropped examples:


AS17-138-21080


AS14-66-9260

AS13-62-8955


AS13-62-8973



AS11-40-5893
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