Re: [Vo]:Apparently growing white blobs on Phoenix strut
NASA seems to have taken an interest in the white blobs on the struts. On Sol 97, they took no less than 8 photos of the same spot, elevation 89.076, azimuth 355.518, with times varying from 02:09:16 to 03:56:48. See: http://phoenix.lpl.arizona.edu/images.php?gID=26263cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26264cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26265cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26266cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26267cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26268cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26269cID=268 http://phoenix.lpl.arizona.edu/images.php?gID=26281cID=268 Following are other strut photos previously noted: Second strut photo: Sol 73, 13:02:13 camera elevation -25 deg, azimuth 150: http://phoenix.lpl.arizona.edu/images.php?gID=19371cID=209 http://phoenix.lpl.arizona.edu/images/gallery/lg_19371.jpg Third strut before photo, Sol 5, 14:47:02 camera elevation -13 deg, azimuth 197: http://phoenix.lpl.arizona.edu/images.php?gID=1018cID=26 http://phoenix.lpl.arizona.edu/images/gallery/lg_1018.jpg Third strut after photo, Sol 89, 11:45:08, camera elevation -19 deg, azimuth 197: http://phoenix.lpl.arizona.edu/images.php?gID=24843cID=247 http://phoenix.lpl.arizona.edu/images/gallery/lg_24843.jpg Note that all the above photos are upside down. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
Re: [Vo]:Apparently growing white blobs on Phoenix strut
On Aug 26, 2008, at 8:23 AM, Harry Veeder wrote: Whatever it is the fact that it only appears on that strut is odd. harry It appears that the globular drops are on another strut or two also. (The strut in the foreground appears to have a few blobs.) The photo: Sol 73, 13:02:13 camera elevation -25 deg, azimuth 150: http://phoenix.lpl.arizona.edu/images.php?gID=19371cID=209 http://phoenix.lpl.arizona.edu/images/gallery/lg_19371.jpg Again, it pays to flip the above photo 180 degrees because it is upside down. For comparison, here again are the photos compared prior regarding the large increasing set of blobs: Before photo, Sol 5, 14:47:02 camera elevation -13 deg, azimuth 197: http://phoenix.lpl.arizona.edu/images.php?gID=1018cID=26 http://phoenix.lpl.arizona.edu/images/gallery/lg_1018.jpg After photo, Sol 89, 11:45:08, camera elevation -19 deg, azimuth 197: http://phoenix.lpl.arizona.edu/images.php?gID=24843cID=247 http://phoenix.lpl.arizona.edu/images/gallery/lg_24843.jpg It is still odd the globs only appear in a few specific places. I still think this may indicate leaks or spills from the chemical analysis areas. It will be interesting to keep an eye out for further growth though. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
Re: [Vo]:Apparently growing white blobs on Phoenix strut
On Aug 26, 2008, at 8:23 AM, Harry Veeder wrote: Whatever it is the fact that it only appears on that strut is odd. harry Maybe one of the oven/chemical experiments sprung a leak and dripped on the strut. The water would have frozen and sublimated, leaving solids behind. The spots are on the top side of the strut. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
Re: [Vo]:Apparently growing white blobs on Phoenix strut
Why, in 84 days, is a large ice deposit only in that one spot? Why is the frost not somewhat uniform? Keep in mind the photo is upside down. The ground is at the top. The pictures make a lot more sense when flipped 180 degrees. The strut in the foreground is also in the dark, yet has no sign of frost at all in either photo. There are many photos of many parts on Phoenix, but none have shown large and changing white spots. BTW, we have many types of dry icing conditions here in south central Alaska, especially when temperatures are below -30 deg. F. It is not widely known that many areas in Alaska are classified as deserts, based on annual precipitation. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/ On Aug 25, 2008, at 2:57 PM, leaking pen wrote: unless the differeing heat exchange of the metal causes ot to build frost from the vapor dissapearing from the ground. ive seen that effect with railings here in arizona in the dry dry winters. On Mon, Aug 25, 2008 at 3:35 PM, Horace Heffner [EMAIL PROTECTED] wrote: On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote: could that be frost? harry Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the before picture looks like the ground is lighter, so it should have the frost.
Re: [Vo]:Apparently growing white blobs on Phoenix strut
Something else that is inconsistent with condensing ice forming on the location in question is that such ice typically forms in a clearly crystalline form, a kind of hoar frost. The white stuff on the strut looks smooth and globular. It might be said that the stuff is melting, but then that is inconsistent with the fact the underlying and nearby globs have remained in place for 84 days, and also appear to have accumulated a dust covering. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/ On Aug 25, 2008, at 2:57 PM, leaking pen wrote: unless the differeing heat exchange of the metal causes ot to build frost from the vapor dissapearing from the ground. ive seen that effect with railings here in arizona in the dry dry winters. On Mon, Aug 25, 2008 at 3:35 PM, Horace Heffner [EMAIL PROTECTED] wrote: On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote: could that be frost? harry Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the before picture looks like the ground is lighter, so it should have the frost.
Re: [Vo]:Apparently growing white blobs on Phoenix strut
Whatever it is the fact that it only appears on that strut is odd. harry on 26/8/08 4:00 am, Horace Heffner at [EMAIL PROTECTED] wrote: Why, in 84 days, is a large ice deposit only in that one spot? Why is the frost not somewhat uniform? Keep in mind the photo is upside down. The ground is at the top. The pictures make a lot more sense when flipped 180 degrees. The strut in the foreground is also in the dark, yet has no sign of frost at all in either photo. There are many photos of many parts on Phoenix, but none have shown large and changing white spots. BTW, we have many types of dry icing conditions here in south central Alaska, especially when temperatures are below -30 deg. F. It is not widely known that many areas in Alaska are classified as deserts, based on annual precipitation. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/ On Aug 25, 2008, at 2:57 PM, leaking pen wrote: unless the differeing heat exchange of the metal causes ot to build frost from the vapor dissapearing from the ground. ive seen that effect with railings here in arizona in the dry dry winters. On Mon, Aug 25, 2008 at 3:35 PM, Horace Heffner [EMAIL PROTECTED] wrote: On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote: could that be frost? harry Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the before picture looks like the ground is lighter, so it should have the frost.
Re: [Vo]:Apparently growing white blobs on Phoenix strut
could that be frost? harry on 25/8/08 1:47 pm, Horace Heffner at [EMAIL PROTECTED] wrote: Here are lightened versions of both before and after: Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
Re: [Vo]:Apparently growing white blobs on Phoenix strut
On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote: could that be frost? harry Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the before picture looks like the ground is lighter, so it should have the frost. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
Re: [Vo]:Apparently growing white blobs on Phoenix strut
unless the differeing heat exchange of the metal causes ot to build frost from the vapor dissapearing from the ground. ive seen that effect with railings here in arizona in the dry dry winters. On Mon, Aug 25, 2008 at 3:35 PM, Horace Heffner [EMAIL PROTECTED] wrote: On Aug 25, 2008, at 12:26 PM, Harry Veeder wrote: could that be frost? harry Could be, but it seems to me unlikely, given there is no frost on anything else. A very light morning frost does occur on the ground there at times. If anything, the before picture looks like the ground is lighter, so it should have the frost. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
