"I think I've found a track, what do you think?"

[elainekeefe]

Thanks, greuti. I wondered about that. I have come to the point where every time I see a track, I expect it to be either a cm or a needle mark.

[caprarom]

It's on the Alpha list now, Elaine. Good one!

Mike

[jsmaje]

I love the 'shocked' or 'rolling eyes' face on that one Elaine, as if to say "dare call ME a needle-poke and I'll poke you...wherever!":



Dan, you suggest we might get some 50 micron CMs; " - that ought to wake a few people up". Good idea, but would they be new CMs or taken from phase 2, which (I think) were all 'carrot-tracks' rather than HATs, and which may risk sowing further confusion?

So: "Dr. Westphal has removed his "?" from his rating of 6263991V1. It's definitely a needle mark."
But you still don't explain (as was asked) how he knows; for example, by comparison with a fiducial database, and/or by examining overlapping frames from the scanned movie database? If the latter, can we be shown the overlapping movie below?
By the way, I notice that Orion also extends below the bottom of the frame. Can we be shown the overlapping movie there too (yes, I know it came from the pre-fiducial era)?

I presume it was just an ironic coincidence that the decision to insert (?all) fiducials in a midnight orientation was made before it became apparent that midnight tracks could in fact be of particular interest. Might they be inserted at some other angle in future?

John

[nitram819]

This one is not on the Alpha list and its an old 50 micron movie. Its an high angle track but not a midnight track unfortunately. Its located in the top middle.

Movie ID: 4152437V1

29 views, 2 clicks.

[elainekeefe]

nitram,

When you post a movie, would you please include the link? Just copy and paste the top line above the movie (browser bar). I've done it for you here:

http://stardustathome.ssl.berkeley.edu/ ... =4152437V1

Thanks, Elaine

[nitram819]

Yep no problem sorry, I was in a bit of a hurry when I posted this.

[nitram819]

This one is not on the Alpha list and its an old 50 micron movie. Its an high angle track but not a midnight track unfortunately. Its located in the top middle.

Movie ID: 4152437V1

29 views, 2 clicks.

Now that I am home I reviewed the movie in question... and it looks like its out of focus. Whatever is there looked like a track with 3 fragments when saw it earlier.

I'm blaming those big black marks when they were in focus I thought the whole movie was in focus. woops

[jsmaje]

9713687V1, anyone?
Top right corner, going NNE like other linear surface features, but seems to go slightly deeper; ~495,16 (1/1).

[tritone21]

I found an interesting feature in Movie 531874V1. Could it be a track? (possibly a large h.a. track?). I think it is worth further investigation.

[jsmaje]

Impressive track tritone21!
In overall form it looks like a needle-poke to me, but it will be interesting to see what the team have to say.

[Mitchell Criswell III]

I agree with you, John, probably a needle poke. I have entered it on the alpha list. Lets see what Berkeley says. Nice one, tritone21.
Mitchell

[jsmill]

At first I was all . Now, I'm more after viewing some of the needlepokes.
Have a peek...

http://stardustathome.ssl.berkeley.edu/ ... =7373612V1

Jim

[tritone21]

thank you for your comments duster mates! anyway, what do you exactly mean by needle-poke?

[elainekeefe]

Hi tritone. Please see this page, which explains a "needle-poke" (or fiducial):

http://stardustathome.ssl.berkeley.edu/ ... 2fe#p17904

[tritone21]

Thank you elaine. I have just read that page and I do think it's much probably a needle-poke