• 2,996 RDRs, 1 TB
• 42,370 EDRs, 1 TB
• 34,481 RDR Extras, 1.6 TB
• 83,784 EDR Extras, 0.02 TB
• 636 Anaglyphs, 0.01 TB

Totals for this release: 163,631 image products, 3.6 TB

This brings our total released product numbers and data volume to:

• 22,676 RDRs, 12 TB
• 317,120 EDRs, 10.4 TB
• 192,270 RDR Extras, 15.3 TB
• 612,769 EDR Extras, 0.1 TB
• 2,892 Anaglyphs, 0.5 TB

Total: 1,148,363 images, 37.5 TB

In summary, we released nearly 1500 observations, most of those with both black & white and color RDR products. Several newer observations matched up with older observations from a slightly different angle of the same location on the surface, resulting in 636 awesome new anaglyphs. The RDRs are the fully processed, geometrically projected products best for scientific inquiry. If you really want to, though, anyone can download and process HiRISE data from scratch. You can do this using ISIS software, which is publicly available for free download. See the ISIS Web site for download information, processing instructions, and tutorials.

Starting this week, I will be looking over the observations taken August 6 through August 26 before MRO went into safe mode and make sure they are ready for release. We plan to release these images in early October. We are also in the process of reprocessing those Extended Science Phase mission images prior to all the latest processing pipeline fixes and updates.  Once we are satisfied with that data set, we will release them to the public and then start reprocessing the images from the Primary Science Phase…a major project that should keep me and the rest of Downlink busy for several months!

Artist's rendition of Mars Polar Lander in 3-D

The Unmanned Spaceflight forums have a long discussion on the previous search efforts. Many candidates were proposed, and the community’s discussion about them is quite enlightening.

Emily Lakdawalla at the Planetary Society also started a coordinated search effort last year. I don’t know if that effort is still ongoing, but her page on how to use HiRISE images in the search is still a great resource. It includes examples of known hardware, cosmic ray hits and other artifacts, and more tips on searching.

In addition to the list of images on the previous blog entry, these new images have been released: (we’ll try to keep this list up to date as more are released)

• ESP_013368_1035
• ESP_013078_1030
• ESP_013223_1025
• ESP_013289_1035
• ESP_013566_1025
• ESP_013500_1035
• ESP_013711_1030
• ESP_013724_1030
• ESP_013935_1030
• ESP_013790_1035
• ESP_014001_1040
• ESP_014080_1040

Thanks for all your interest, and good luck searching!

9/2/09: ETA new images released in September PDS release.

Dr. Alfred McEwen, HiRISE principal investigator, decided early on that this incredibly powerful instrument should be “The People’s Camera”. This meant, among other things, that we would endeavor to make the data returned by HiRISE available to the scientific community and public as quickly as possible. We have PDS release requirements, but our goal has always been to beat those requirements. To do so, we needed to develop automated software pipelines to take the raw data and turn them into useful calibrated and geometrically mapped products. We also needed to develop the right PDS release tools, train a talented group of operations staff to validate the data and fix problems, and develop a website to effectively and beautifully showcase HiRISE images.

We now believe we have reached the point to be able to support a monthly release of recent HiRISE images to the public! This week we released the observations HiRISE took of Mars between orbits 11,600 and 12,599, or between January 16 and April 04, 2009. This makes us the first mission to release a data set to the PDS so quickly! Here are the statistics for this release, including the number of each product type released and their respective data volumes (EDRs are the individual uncalibrated image channels and RDRs are the calibrated, mosaicked, and geometrically-projected observations):

• 1,179 RDRs, 520 GB
• 16,861 EDRs, 459 GB
• 13,512 RDR Extras, 788 GB
• 33,152 EDR Extras, 7 GB
• 342 Anaglyphs, 51 GB

Totals for this release: 64,704 image products, 1.7 TB

This brings our total released product numbers and data volume to:

• 19,667 RDRs, 11 TB
• 278,807 EDRs, 9.5 TB
• 166,816 RDR Extras, 13.7 TB
• 529,095 EDR Extras, 0.1 TB
• 2,892 Anaglyphs, 0.5 TB

Total: 993,277 images, 34 TB

Those are various products for about 9998 Mars observations, and another reason why it makes no sense to hoard our data; there is too much of it and too few of us! The team scientists have plenty to do and there are plenty of discoveries to be made, old hypotheses to update, and new mysteries to solve.  The operations staff are now hard at work getting observations from orbits 12,600 through 12,999, or between April 04 and May 5, 2009, ready for the June PDS release. This involves making sure each observation has been processed by our software pipelines correctly, fixing any problems, and checking and double checking that the relevant image products are ready for release.  Sometimes we have to manually force an observation through the pipelines because some of its channels were lost during transmission to the Earth, or we might stumble across an observation we somehow forgot to send on to the color pipelines after it had been calibrated. There are spreadsheets to maintain, lists of problematic observations to keep (see the ERRATA.TXT file), and a variety of other tasks that need to be completed before the latest data set is ready for release.

Over the next few months we will see how this goes! It is a lot of work, but our desire for you to see these beautiful images of Mars as quickly as possible is strong. No promises, but we will also explore releasing completed observations even faster!

These are 11×17 PDFs showing cutouts of new releases, so you can print your own posters. Currently these are available for weekly releases starting 3/25/09 – look for more with each week’s new images!

They’re all available on this page. There are also links to the flyers on the individual image pages such as this one: http://hirise.lpl.arizona.edu/ESP_011425_1775 (Look for the “HiFLYER” link in the lower right hand side.)

Enjoy!

Our masterful web master creates these wallpapers for each of our weekly captioned releases (these are the images we release each week with some commentary written by the science team). He picks out an interesting area from each image and produces custom cutouts in different sizes. We provide these extra files because we think the images are so beautiful, everyone should have them on their desktop. Because they’re all done by hand, though, we unfortunately don’t have the resources to make these special products for every single image. For example, most of the 1,642 images we released in our big December PDS release don’t have wallpapers. However, you can make your own, and here’s how!

I make my own wallpapers all the time, so I can see the images that I planned. You can make your own, too – it’s really easy. They’re basically just screenshots, zoomed in on a part of the image at high resolution. If you’ve never done that before, here are instructions for one way to do it.

Let’s say you’re enamored with this image of Phlegra Montes (PSP_009308_2295), which was part of our PDS release, but it doesn’t have any wallpapers. There are a few ways to do this. The one we recommend (and the one I personally use) is the IAS Viewer. We’ve talked about this tool quite a few times on this blog, but here’s a short step-by-step in case you’re new to this tool:

1. On the image page, click on JP2 QUICKLOOK (IAS Viewer), and a menu will drop down showing the available products.
2. Click on the product you want.
   • Personally, I like color, but that’s only in the middle of the observation. If you want to see the entire field of view, get the grayscale, which includes all of our red-filter CCDs. Map-projected products will have the image oriented so that North is up – I prefer this because then the shadows appear to my eyes to be in the “right” direction. In this example, I chose IRB color (map projected)
3. You’ll get a popup window asking you to verify the certificate – click Trust.
4. The IAS Viewer will open. Make this as big as you can fit on your screen. Make the image that opened as big as you can fit, too.
5. Zoom (magnifying glass with plus) and pan (scroll bars, hand tool, or Overview map at top left) until you like the view. Don’t forget to re-stretch!
   • The resolution is shown in the bottom of the viewer – 1×8 means it’s eight times reduced, 2x means it’s zoomed in to twice the full resolution, etc.
   • Make sure you zoom in to full-resolution (1×1) at least once, because it’s awesome!



6. Save the view to a JPG file (disk button). It might look something like the one to the right.
7. (optional) Open the JPG file in another application, such as Photoshop or GraphicConverter to do additional stretching or processing. For example, you might want to tweak the color or contrast to your particular taste.
8. Use that file as your wallpaper or screensaver, or both!

Caution: Doing this may lead you to spend WAY too much time looking at beautiful HiRISE images and making wallpaper! You’ll find that you can make many, many unique full-resolution wallpapers out of a single HiRISE image!

Thanks to the webmaster for help in writing this, as well as for all the outstanding wallpapers he’s already produced!

And now, for all of those curious minds out there, a brief overview of the HiGlyph Pipeline:

• Anaglyphs are created in a three-step process. The first step is to take the two images of the stereo pair and map project them. This helps the pipeline determine which image will be the left image and which will be the right image in the anaglyph.

• The second step takes the two images and looks to see if there are any improvements that can be done on them before putting them together. If there are not, the images move on. Often, due to the difference in viewing angle, the two images do not have a 100% overlap. Thus, to make the image a bit neater and easier to see, we trim off the excess portion of the image (the parts that do not overlap) and then assemble them so the left image is the red and the right image is the blue/green.

• The third and final step of this image processing is simply to prepare the images you see here and to update our catalog.

Seems complicated, right? Well luckily we have wonderful programmers that create these intricate programs. All I have to do is create a list of these images and run them through this pipeline. What really makes my job interesting is the validation process!

I have had the pleasure of being able to look at all 362 of the anaglyphs we have released today. But, you might ask, aside from looking super cool in 3-D glasses , what does it take to validate these anaglyphs? Well, at the beginning of this process the student validators and I got to ask that very same question. Since HiRISE has never had software to create images like this before, we played lab rat and came up with an entirely new technique for validation.

• You may notice that when not wearing the 3-D glasses there is a bit of a horizontal shift in the anaglyph. This shift is good because it is what allows us to see the image in 3-D. But, since the map projection of this process is not always spot on, we sometimes wind up with a vertical shift too. This is bad! Since most of us do not have googly eyes, this makes the image very difficult to see. With our validation process, we have to spot this out and fix it so that you do not have to strain your eyes (well… not too much at least ) in order to see the anaglyph.

Well, with that said, I leave you to your regularly scheduled HiRISE browsing! Enjoy!

Here are a few excerpts from yesterday’s University of Arizona story about our PDS release:

The HiRISE team has so far released a total 26.9 terabytes of data…. That amounts to more data than has been released by all previous deep space missions combined.

“If I showed each HiRISE image for 10 seconds, it would take me about 4 years to show them all,” said UA’s Alfred McEwen, HiRISE principal investigator.

…

Spacecraft motion pushes this electronic array so that it records the view down to Mars’ surface at a ground speed of about 3.2 kilometers per second, or about 7,000 miles per hour.

Skeptics doubted that a technique called “time integration delay,” needed to compensate for extremely short exposure times – about one ten-thousandth of a second per pixel – could produce sharp, unsmeared images.

But the technique has worked “wonderfully well,” thanks to accurate spacecraft pointing and stability and precise exposure time calculations, McEwen said.

Click here for full story.

Here are a few examples of cool images, which were previously unreleased:

• PSP_008248_2640, Polygons and spots on defrosting dunes (right)
• PSP_008269_1395, crazy weird stuff in Hellas Planitia (be sure to look at the whole browse image on this one!)
• PSP_008322_1865, Multiple generations of slope streaks on a crater in Arabia Terra (left)
• PSP_008343_1430, Gullies on mesas in Gorgonum Chaos

I’ve only looked through the first few pages in the release. I know there are a lot more amazing images in there, so if you’re browsing through the images, post some of your favorites below!

For example, such software could display the actual coordinates on Mars of the pixels you are looking at, allow you to measure features directly in physical units, or stitch together images based on their absolute location on the planet. A number of GIS (Geographical Information Systems) applications use GeoTIFF; many on our science team have been waiting patiently for this feature to be rolled out.

We have already begun to produce RDRs with GeoTIFF, and they will start appearing in our weekly releases. At some point, a major reprocessing effort will be underway to bring this feature (and others) to all of our pre-existing products.

This brings up the topic of versioning: namely, how to tell which version of a HiRISE product you are working with.

Every HiRISE product has a line in the PDS label with the DATA_SET_ID. Every released HiRISE product to date shows that it has a DATA_SET_ID version of 1.0. The GeoTIFF RDR’s have a DATA_SET_ID showing version 1.1. This 1.1 version of our RDR processing also contains the updated color stretches described in a previous post. Later this year, that version number will likely be bumped up again when our improved calibration algorithms are put into production.

In addition, every HiRISE PDS product also has a line in the label with the PRODUCT_VERSION_ID. And every released HiRISE product to date has a PRODUCT_VERSION_ID of 1. When we make a new version of a released product, the version number will be incremented. If that new version is then released, it will replace the older version. We will only replace products with newer versions after a process of validation.

We’re halfway through a major update to our production pipelines that allows us to create, store, and reprocess these newer versions without effecting the released versions. This version number will only increase by integer amounts, and will never “skip”.