I thought the images(s) below might be of interest to the group. The situation: an early morning gathering of external images at a building where I was beginning a full scale assessment for water intrusion and frozen pipes. These images were just for general info at this point. Because of the conditions and the need for speed I set my Ti25 to automatic knowing that I would have to adjust the range later in processing. I expected that the low end would be at the imager's minimum temp because I frequently included the sky. I was a little surprised when I opened this image and saw this:

Note the image scale. This is the full range of the imager!
I didn't have time to do much contemplation about the image so I applied the expected range and got the image below which is what I was looking for.

So what was going on? I'm pretty sure I have the answer, do you? The answer is visible in both images.
Just to avoid any red herring the pattern on the roof is from tree branches between me and the building.
Further hint is the time stamp and I am looking roughly southwest.

Views: 54

Replies to This Discussion

all surface temps in first pic were less than 72 deg f
Is that heat from a star?
what is going on with that window? reflection of a roof? where was this taken?

crazy patterns on the corners. almost looks like wind carrying the temperature around them.

airplane?
I guess I should give the answer, George got it right. According to some astronomically knowledgeable friends what we are seeing in the upper right corner is the star Antares which is a pretty good sized ball of gas. If you got to http://www.co-intelligence.org/newsletter/comparisons.html you will find a comparison at the bottom of the page that will make you feel very insignificant if you think about it for awhile.
The imager picked up the sky as being below it's minimum range of -22F and the surface of the star as above the maximum range of 698F. Of course what I was interested in was the range between 15 and 37F so when I rescaled the image looked a bit more normal to our eyes.
Jamie, the structure is steel framed with no appreciable thermal break. The octagon tower which is the left and center portion of the image has so many thermal anomalies that I couldn't begin to enumerate them. The window that shows cold is the only one that has the blinds drawn. It's losing less heat than the others.
Notice the heat loss around the eaves, including the false roof below the top floor of the tower. When you allow unrestricted air flow through a building that is several stories tall you get some interesting patterns.
Bill,

I don't mean to be a "doubting Thomas" regarding the Antares theory... but the IFOV (Spatial Resolution) of the Ti25 is only 2.50mRad. Seeing the moon is always a possibility...but normal stars are pretty much out of the question due to the extreme distance... (even though the actual emitting objects are very large, as you have pointed out.) Could it have been a jet aircraft on approach or takeoff? I've never really checked (or calculated) detecting the planet Venus with my imagers before... but that would be my next guess beyond the moon or an aircraft
(fixed or rotary-wing). Do you happen to still have the raw IS2 file? I'd love to take a closer look in the software!
Looks like that small hot dot in the upper right corner could be a reflection of the early morning sun off an airplane?!
Blinds in the window!! It is all about the details!

Crazy the amount of heat coming, being lost, from those soffits.

I didn't think it was a star. That would be amazing.
I tend to differ to Michael's opinion here especially with the IFOV only 2.50mRad.

That is what is great about this profession....always something to consider and learn!
I meant to say "defer" to Michael's opinion in the above comment.

I thought it was an airplane too, but didn't think that it could be the reflection of the sun.
It is all about the details.

That shows John is always "Thinking Thermally"!
Better not let the "ghost hunters" or "UFO crowd" get a hold of this image! No telling what it could turn out to be then! ;-)
Sorry not to get back sooner, I didn't have access to the images or info on the road.
Michael, you certainly know the hardware better than I. I showed the image to a friend who is into astronomy and he consulted some software charts and came up with the Antares theory which seemed plausible to me at the time. I have a call into him but haven't heard back. I just sent you a friend request to get a message to you to send the original file. I should note that I can't see the object in the visible light image.

The image was shot in the White Mountains of NH at a resort hotel, the nearest airport of any note is over 40 miles away in the general direction of the image. I suppose a plane could be passing closer but it would be fairly high at that point.

John, I'd buy that but it isn't in the visible image (see below). Any chance it's the entire star cluster? Said the guy who knows next to nothing of astronomy.

Jamie, trust me, this building had "details". There were thermal bypasses in this building that were bigger than some apartment I have lived in. That is not an exaggeration.

So I guess it's still a mystery, just keep me away from the "spectral imaging" folks.

Michael, an additional though. Maybe you guys make a better product than you think!
Bill,

I appreciate the thought... and we honestly try to give our customers a little more than they thought they paid for... but you just can't break the fundamental laws of physics! (or the "spectral imaging" folks may come to take you away!)

I love a good thermal mystery!

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Kaushal Bharath Raju posted a discussion

Affordability & Deep Energy Upgrade/Passive House Retrofit in Berkeley, California.

We have a small 1940s single level house (1005sqf) in Berkeley, California that is in need of a…See More
4 hours ago
Christopher Morin posted a blog post

5 Things New Energy Efficiency HVAC Contractors Need to Know

1. Do not sell on Price! Use 'Simple Payback'The price of High-efficient equipment will undoubtedly…See More
9 hours ago
David Eggleton commented on David Eggleton's group Considering Permaculture &/or Transition
"In August 2014, in Minnesota, there's another unprecedented opportunity to meet and mix with a…"
16 hours ago
Glen Gallo commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"Nate, RE: Duct test On my own home and a rental I have tested more than once over the last many…"
17 hours ago
Profile Iconangela hines and Charles Goldman joined Home Energy Pros
21 hours ago
Jeff Flaherty joined Diane Chojnowski's group
Thumbnail

Tools of the Trade

A hammer and a saw used to be the key tools for home contractors. Today, the best-in-breed also use…See More
yesterday
Jeff Flaherty joined allen p tanner's group
Thumbnail

Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
yesterday
Debra Little joined David Eggleton's group
Thumbnail

Considering Permaculture &/or Transition

Some who work to increase energy efficiency and intelligent/wise use of energy are, and some will…See More
yesterday
Jim Gunshinan commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"Thanks for all the comments. Yes, it is interesting how the duct leakage grew over the years. Maybe…"
yesterday
Ed Minch commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"What sort of energy bill do you have now, what is  your target bill, and what will it cost to…"
yesterday
Nate Adams commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"I look forward to hearing more about the inside of the program! The big question that came to mind…"
yesterday
Glen Gallo commented on Jim Gunshinan's blog post Energy Upgrade California—Up Close and Personal
"It is curious to see a 15% difference in the duct test from the test out of 2007 to the current…"
yesterday

© 2014   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service