Interactive Libration Spreadsheet

[Demonperformer]

This spreadsheet attempts to bring together various aspects of lunar librations that I have been considering recently.

In combination with three figures (obtained from Virtual Moon Atlas) for your location and the date/time of interest, it calculates for each of the 225 craters that can either appear or disappear as a result of libration - http://stargazerslounge.com/topic/216738-life-on-the-edge/ - whether it is positively or negatively affected by that libration and by how much. For dates within three days of either full or new moon, it also highlights those craters which are more favourably positioned, enabling quick and easy identification of suitable subjects.  

Details for using the spreadsheet are given in the 'Notes' sheet.  The screenprint from VMA shows where to find the figures to input.

Thanks for looking.
 

ILC.xls