No personal information is held on this site with the following two exceptions:
A list of e-mail adddresses of registered users of NavPac 4.1 and their product keys, machine signatures and unlock codes is held on this site for administration [urposes and those wishing to receive notification of updates and bug fixes for the NavPac 4.1 software. No other use is made of this list.
A list of e-mail addresses is held on this site for those wishing to receive e-mail notification of the occurence of the new crescent Moon. No other use is made of this list. Sightings of the new crescent moon submitted by observers are stored but contain no personal information relating to the observer.
HMNAO maintain log files of the usage of this site to determine the extent to which the site is accessed for statisitical purposes. This software makes no use of 'cookies'.
HMNAO make no use of 'cookies' or similar information gathering or tracking software on http://astro.ukho.gov.uk and sub-sites.