Odd Aircraft in Flight discussion

GEHFileBot · 10-02-2005, 08:34 PM

This is a discussion thread for the following file:

Odd Aircraft in Flight

I first found the contrails and thought they might be powerlines, but they stopped abruptly, so I zoomed in and found the airliner. By zooming way out, it seems to be enroute from Grand Rapids MI to Detroit Metro Mi. Does anyone know why a/c in flight have these ghost images? Is it because the satellite is moving in a different direction when the photo is take?

Desmorado · 10-02-2005, 08:35 PM

I think its because every color of the light has an other speed.
The ghost image is only blue and red, so yellow may be slower than the others and was not fast enough back to the satellite...

Or something else, I can't explain it in english.

Only in german

RPharazon · 10-02-2005, 08:41 PM

It's the IKONOS Double-Exposure.

I had the explanation in a similar thread, but I'm too lazy to dig it up. Sorry.

Captain Hornblower · 10-02-2005, 08:49 PM

The speed of light is independent of the color. Your theory even doesn't work as just aircrafts have those ghost images.
I don't know why this happens, but I guess it has something to do with the movement of the satellite and the aircrafts, which are much faster than any other object photographed.

Desmorado · 10-02-2005, 08:53 PM

Doppler effect

Captain Hornblower · 10-02-2005, 09:06 PM

That may cause wrong colors, but no ghost images.

Desmorado · 10-02-2005, 09:19 PM

Ok, I don't know

GEH4EVR · 10-10-2005, 11:55 PM

I think it's because the sattelite is moving faster than the plane so it creates a double image

Appletom · 10-11-2005, 12:41 AM

This keyhole BBS thread has more information - http://bbs.keyhole.com/ubb/showflat....7/an/page/vc/1

More information than I can understand

10-02-2005, 08:34 PM	#1
GEHFileBot Senior Member Join Date: Jul 2005 Posts: 3,960	Odd Aircraft in Flight discussion This is a discussion thread for the following file: Odd Aircraft in Flight I first found the contrails and thought they might be powerlines, but they stopped abruptly, so I zoomed in and found the airliner. By zooming way out, it seems to be enroute from Grand Rapids MI to Detroit Metro Mi. Does anyone know why a/c in flight have these ghost images? Is it because the satellite is moving in a different direction when the photo is take?

10-02-2005, 08:35 PM	#2
Desmorado Junior Member Join Date: Aug 2005 Location: Roßbach / RLP / Germany Posts: 5	I think its because every color of the light has an other speed. The ghost image is only blue and red, so yellow may be slower than the others and was not fast enough back to the satellite... Or something else, I can't explain it in english. Only in german __________________ This is not really a signature... To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

10-02-2005, 08:53 PM	#5
Desmorado Junior Member Join Date: Aug 2005 Location: Roßbach / RLP / Germany Posts: 5	Doppler effect __________________ This is not really a signature... To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

10-02-2005, 09:19 PM	#7
Desmorado Junior Member Join Date: Aug 2005 Location: Roßbach / RLP / Germany Posts: 5	Ok, I don't know __________________ This is not really a signature... To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

10-10-2005, 11:55 PM	#8
GEH4EVR Techy Moderator Join Date: Oct 2005 Location: London,Dublin,Spain... Posts: 1,171	Movement I think it's because the sattelite is moving faster than the plane so it creates a double image

10-02-2005, 08:41 PM	#3
RPharazon Junior Member Join Date: Aug 2005 Location: Calgary, Alberta Posts: 6	It's the IKONOS Double-Exposure. I had the explanation in a similar thread, but I'm too lazy to dig it up. Sorry.

10-02-2005, 08:49 PM	#4
Captain Hornblower Super Moderator Join Date: Aug 2005 Location: Koblenz, Germany Posts: 1,903	The speed of light is independent of the color. Your theory even doesn't work as just aircrafts have those ghost images. I don't know why this happens, but I guess it has something to do with the movement of the satellite and the aircrafts, which are much faster than any other object photographed.

10-02-2005, 09:06 PM	#6
Captain Hornblower Super Moderator Join Date: Aug 2005 Location: Koblenz, Germany Posts: 1,903	That may cause wrong colors, but no ghost images.

10-11-2005, 12:41 AM	#9
Appletom Moderator Emeritus Join Date: Jul 2005 Location: El Paso, Texas Posts: 1,051	This keyhole BBS thread has more information - http://bbs.keyhole.com/ubb/showflat....7/an/page/vc/1 More information than I can understand

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