IHW_PPFLX
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 o Lori has a list of spelling/grammar errors.

 o ppflx.cat has REFERENCE_KEY_IDs with no REFERENCE objects in the 
   reference.cat file.

 o dataset.cat: "re-reduced" hyphenated inconsistently; incorrect reference
   to Zellner & Wisniewsky (1985) - authors in wrong order.

 o In the document directory, add units in the .txt file for Lambda for
   all tables (should be angstroms).

 o "Internal Halley Watch" in the document directory files.

 o document: Table IV - explain the numbers in parentheses.

 o In pflx.lbl observation time is listed as accurate to 9 seconds, where
   it is 5 seconds in the dataset.cat.

 o Add unit to column 7 (same as preceding flux).

 o If possible, determine which NH filter was dispatched to which observatory
   and document it.