3 ms·

It's a composite of LORRI images, which is panchromatic. That means it doesn't have any filters in between, and it measures the intensity of light across all vi

It's a composite of LORRI images, which is panchromatic. That means it doesn't have any filters in between, and it measures the intensity of light across all visible wavelengths (and probably a bit of near IR -- so panchromatic), that's why it's grayscale -- it's measuring the intensity of light. I've downloaded all the mission LORRI and MVIC raw files, and I know "by eye" that MVIC isn't near as good resolution as LORRI. Edit: after checking the linked file, then yes, this version must be an upscaled MVIC image (I saw an almost 7k by 3k image and immediately thought of LORRI). Yet, there are same views from the LORRI instrument, which are far more detailed.

jessriedel 7y ago
Are you saying there is a version of this photo at even higher resolution? Is there anything you could tell me that would help me track it down? It's sort of a hard thing to Google for, and hunting through the raw NASA database seems like a needle in a haystack. EDIT: Based on this, I think you might have just gotten the two cameras confused :) > LORRI is a simple camera to understand -- it's point and shoot. It is black-and-white, with a square detector, 1024 pixels square, over an extremely narrow field of view of 0.29 degrees....Sometimes, to keep file sizes small and improve signal in low light situations, you can bin LORRI images 4x4, so the resulting pictures are 256 pixels square. That's pretty much it for LORRI.... > MVIC is quite different from LORRI...The detector is 5024 pixels wide, of which 5000 are actually photoactive, so its images are 5000 pixels wide by an arbitrary number of pixels long. https://www.planetary.org/blogs/emily-lakdawalla/2015/09171318-spectacular-new-horizons-mvic-haze.html https://www.planetary.org/blogs/emily-lakdawalla/2015/091713...
- dr_zoidberg 7y ago
  Didn't confuse them, LORRI is basically a camera at the end of a long telescope, hence it gives higher resolution images. But yeah, going over the files at the time this MVIC image was generated, LORRI took a few (very) close up images but it doesn't have any one having such a large field of view (since MVIC is not as magnified, then it's able to take such widefield images). Edit: And after a lot of searching, I found the image: nh-p-mvic-3-pluto-v3.0/data/20150714_029918/mp2_0299181722_0x530_sci.fit. By the way, I'm glad you threw me into this search. Having found this specific image gave me a few good ideas to work over them again, with new things I've learned since the last times I visited them.

jessriedel 7y ago

Are you saying there is a version of this photo at even higher resolution? Is there anything you could tell me that would help me track it down? It's sort of a hard thing to Google for, and hunting through the raw NASA database seems like a needle in a haystack. EDIT: Based on this, I think you might have just gotten the two cameras confused :) > LORRI is a simple camera to understand -- it's point and shoot. It is black-and-white, with a square detector, 1024 pixels square, over an extremely narrow field of view of 0.29 degrees....Sometimes, to keep file sizes small and improve signal in low light situations, you can bin LORRI images 4x4, so the resulting pictures are 256 pixels square. That's pretty much it for LORRI.... > MVIC is quite different from LORRI...The detector is 5024 pixels wide, of which 5000 are actually photoactive, so its images are 5000 pixels wide by an arbitrary number of pixels long. https://www.planetary.org/blogs/emily-lakdawalla/2015/09171318-spectacular-new-horizons-mvic-haze.html https://www.planetary.org/blogs/emily-lakdawalla/2015/091713...

dr_zoidberg 7y ago
Didn't confuse them, LORRI is basically a camera at the end of a long telescope, hence it gives higher resolution images. But yeah, going over the files at the time this MVIC image was generated, LORRI took a few (very) close up images but it doesn't have any one having such a large field of view (since MVIC is not as magnified, then it's able to take such widefield images). Edit: And after a lot of searching, I found the image: nh-p-mvic-3-pluto-v3.0/data/20150714_029918/mp2_0299181722_0x530_sci.fit. By the way, I'm glad you threw me into this search. Having found this specific image gave me a few good ideas to work over them again, with new things I've learned since the last times I visited them.