Someone slipped up? Speadsheets mentioning "halo's"

While looking through the Lunar Orbiter Digitalization Project the today I found the Excel sheets where the people that scanned the photos kept their status, they mention "halo's" and such in the document, might be nothing but still is interested reading. Did someone slip up leaving those documents on a public Web server? Readng the comments leave me with more questions than answers.

astrogeology.usgs.gov... gitization/files/originals/spreadsheets/

Read about the project here
astrogeology.usgs.gov...

Image archive is here:
astrogeology.usgs.gov...

[edit on 13-1-2007 by Acharya]

Ok, I will kick off with some comments that I found suspicious

-Rejected due to D/O
-s226 has small DO - we're keeping it
-halo
-dark btwn strobe & edge (left)
-halo on edge
-FIDS could be a problem
-halo on one edge
-halo edge
-what a mess w/ D!
-New D
-s728x D/O in edge data only
-local cans stripey and lots of D/O's; see what LPI has
-s729 poorly recov. D/O
- w/DO
- weird time discrepancy
-scanned D/O

, and many scanned but rejected with no apperent cause.

What is D/O ? Defence Object? Are DO's, FIDS and/or halo's code names for UFO's or structures?


[edit on 13-1-2007 by Acharya]

I believe the term halo simply refers to a refection within the pic making it less than nominal. Now if they had written "elien craft in shot", that would have been a hell of a find.

Probably nothing, but interesting what kind of stuff you can find out there.

I think a photographic halo is an effect from internal optics inside the lens.

I think D/O refers to "drop out", probably a portion of the data garbled in recording or transmission.

I don't think there is anything suspicious there.