You can track your package on the page of SEPOMEX (Mexican Postal Service).

First step is to click the following link:

http://www.correosdemexico.com.mx/ConsultaGuias/Paginas/ConsultaGuias.aspx

And input your tracking number in the textbox:

Step 2 is clicking the search button:

Step 3 will show the events of your package as well as other information:

Time & Hour: self explanatory, this is related to the event.

Origin: Marks where the event took place.

Event: a description of the status of the event.

Destination: Where is the package being sent.

We see in the example here that the package was sent from the local postal office to the main postal office where is awaiting transference to the final destination.

Although the description is still in spanish, updates to this guide will reflect the possible outcomes of events.