---------------------------------------------- Home Page --------------------------------------------
The home page contains three main items: the blue Filter Options box, the black output box, and a table that will appear at the bottom of the home page. To get started, go through each of the options in the blue Filter Options box and select any filters you wish to apply to the SAFECAT table. By default, the options will not apply any filter to the table. After you have chosen from the nine different filtering options, press the Find Features button at the bottom of the blue box. The program will then take each of your chosen search parameters and filter the SAFECAT table accordingly. The result will be a list containing every observation ID in the SAFECAT table that meet all of your search criteria. Along with the list, the black output box will also tell you how many unique observation IDs fit your search criteria, as well as the total number of table entries and total number of individual features that the SAFECAT contains within the given parameters. To view these table entries, simply click the View Table For All Obsids In Selected Parameters button near the top of the black box to generate a table at the bottom of the screen.
	You can also search the list using the search bar at the bottom. This will highlight any list entries that contain the searched string. It is important to know that the search bar is case sensitive and will only highlight the entries. This means that you will likely have to scroll through the list to find the entries that have been highlighted by the search bar.
	Once you have found a specific obsid that you are interested in, selecting it from the list will create a red pop up that contains additional information. This red box also contains five separate buttons at the bottom which will perform certain tasks pertaining to the currently selected obsid. By selecting the View SAFECAT Table For This Obsid, a table will be generated containing only the entries with your chosen observation ID that are within the previously chosen filter parameters. You can also choose the HAS Link button which will take you to this obsids entry on the Herschel Science Archive website! The other buttons will take you to the other pages of the application which will be discussed below.


-------------------------------------- Expanded Table Page ----------------------------------------
This page generates an identical table to the one displayed at the bottom of the home page. Since some of the tables can be very large, this page merely acts as a way to look through larger tables more efficiently. You can also adjust the width of each column to suite your needs. It is important to note that there are no velocity error or frequency error columns in the table as they have been combined with the velocity and frequency columns as the plus or minus value. It should also be noted that all of the values have been rounded to 2 decimal places in order to save space in the table. If more accuracy is needed, see the notebook for details on how to find the specific SAFECAT table entries.


---------------------------- Spectral Feature Catalogue Page -----------------------------------
This page finds all of the fits files pertaining to the selected obsid and displays the information to the user. In the upper left-hand corner, the program displays the header for the fits file in a simple textbox. The postcards for the chosen obsid are also shown in the upper right-hand corner. This is added simply as a reference. If you would like to download the postcard or look at it in more detail, visit the postcard page of the application. Additionally, the bottom of the page is used to display the main table of the fits file. Nothing has been rounded or combined in this table. It is displayed straight from the fits file. Lastly, at the very bottom of the page is the navigation bar which displays some useful information. Here you can find the exact url the fits file was pulled from in addition to the nav buttons used to switch between the different fits files (if your chosen obsid has multiple fits files).


------------------------------------------- Post Card Page --------------------------------------------
This page locates the postcards for a given observation ID that the user selected from the home page. Most obsids have multiple postcards which can be viewed by using the buttons on the bottom right of the page. To download a postcard, or to view the url of a given postcard, click the Go to URL button at the bottom left.


------------------------------------- Photometer Image Page -------------------------------------
This page starts by reading in the feature finder and HSA data for the given obsid. The program then uses this information to find the photometer ID which can then be used to read in the photometer data. Lastly, the program uses the photometer data to produce a photometer image using matplotlib which is then displayed to the user. This is all accomplished by using the ?get_observation, and ?sky_image functions from the custom library called io. The user can then save this image by clicking the Save Image button and selecting a resolution.