There's potential for a meteor shower from ex-Comet ISON from January 12-15 or so. This was from earlier this morning. There's Leo on the right, comet on the left, but most of the ISON debris should be smaller than this, so it could be unrelated.
I had my camera track Leo for a couple of hours last night, and I shot time-lapse sequences on the previous two mornings as well. I'm not drawing any conclusions until I examine the images and footage.
Update: Since meteors fall down to earth from the radiant point in the sky, as seen from the perspective of standing on earth meteor trails closer to the radiant point in the sky appear shorter, in part because they're seen "on end", with the meteor coming almost directly at the observer. So the length of this meteor implies a more distant radiant point.
I found a smaller meteor in the shots about 10 minutes earlier, but while that could be from ISON, it points in almost the same direction as this longer one, so I'm guessing it's simply a smaller and faster-burning piece of debris from the same source. In the direction they're pointing is Ursa Major (the big bear), but further still, circling the North Star, Polaris, is Draco (the dragon). Between the two lies the radiant point of the Quadrantids meteor shower.
The Quadrantids peaked on January 3 and have a sharp peak, and the shower is generally considered to be active December 26 - January 12. It it's no coincidence that the two meteors have nearly parallel trajectories, I simply found a couple of late Quadrantids.
So back to the original question... did I find any chunks of ISON? I saw some other meteors on the nights I was out, and the rate seemed a little higher than normal, but they'd have to have the right radiant point in the vicinity of Leo, and I don't think that was the case. There actually were two potential streams of debris coming at us, one appearing to come from the vicinity of Leo from the incoming comet, and another containing small debris pushed back at us by the solar wind. Apparently the earth didn't pass directly through the main path of the comet, so even the debris from ISON from its incoming trip was expected to be mainly small pieces which had spread out quite a distance to intersect the earth's path.
It's hard to detect new bits of light in a photo containing hundreds of stars, but the human visual and perceptual system is tuned to pick up movement, and video helps us spot the changes. While converting the still images to video I swore at times while processing the darkest sequence capture with the highest light sensitivity that I could see a sprinkling of small flashes separate from the satellites and the movement of the stars. Seeing small, slow, fast-burning dust could be consistent with the predictions, so I'd be curious to know whether other observations or instruments confirmed the presence of the bits of ISON over the past few days.
But without the brighter and flashier long, colorful streaks, for a photographer you get to the point of diminishing returns if the results aren't obvious and entertaining. With the moon increasingly bright and intruding into more of each successive night, I stopped looking for the event when the moon would be up all night last night.
On the prior three nights the original 22 megapixel photos were cropped to 16:9 shape for video at close to 3840 x 2160 resolution, one of the options for "4K video" resolution with close to 8 megapixel frames. But since few people have a $3000 monitor with 3840 x 2160 pixels, I further down-converted 4:1 to 1080p HD (1920 x 1080) resolution for the video, so the data would match typical moderately high resolution monitors.
While there could be some benefit to inspecting the data at higher resolution, I didn't set up the camera for star tracking on the first two nights, making it a little more involved to perform a subtract of "difference" operation to find and separate out the new bits of light from frame to frame. That's why I embarked on this exercise... to see whether I could detect anything and to learn. Usually I'm shooting for the bigger flashes in the sky, but the next time I want to push the envelope on my camera's sensitivity and resolution and pick up the smallest bits of light, I'll be that much better prepared. By the third night I tracked the sky but the moon was up and if there was anything going on besides satellites and a couple of unrelated meteors, I couldn't see it.
So I had fun working on a nice challenge, this big meteor was a nice bonus, and I learned a few subtle things that will help in future shoots. All in all, time well spent. I've pursued close to 10 nights of meteor shower shooting per year for the past 5 years, roughly 40 to 50 nights. Other night subjects are different, but pushing the envelope is what helps develop the subtle knowledge that helps in the most challenging circumstances. Lately I've started shooting comets, and that's adding a whole new dimension of testing camera sensors and long lenses at the farthest ends of their range of capabilities. I don't know how far I can take that as fast long lenses get expensive quickly, but I can rent equipment and eventually but telescope time as well, so there are options.
I'll try to get the video uploaded later today and mention it in the comments below (as well as on Twitter, etc... @jeffsullphoto).