Time-series analysis system

A computer-implemented method comprising:

• generating, by a computing system comprising one or more processors, user interface data for rendering an interactive user interface on a computing device, the interactive user interface including a first graph, wherein the first graph includes a first curve that represents a vertical position of an item in an underground structure at a first time and a second curve that represents a depth of a bottom of the underground structure at the first time;
• determining, by the computing system, that drilling in the underground structure has begun at a second time after the first time;
• and
• updating, by the computing system, the user interface data such that the interactive user interface includes an updated version of the first curve that represents an updated vertical position of the item in the underground structure at the second time.

A non-transitory computer-readable medium comprising one or more program instructions recorded thereon, the instructions configured for execution by a computing system comprising one or more processors in order to cause the computing system to:

• generate user interface data for rendering an interactive user interface on a computing device, the interactive user interface including a first graph, wherein the first graph includes a first curve that represents a vertical position of an item in an underground structure at a first time and a second curve that represents a depth of a bottom of the underground structure at the first time;
• determine that drilling in the underground structure has begun at a second time after the first time;
• and
• update the user interface data such that the interactive user interface includes an updated version of the first curve that represents an updated vertical position of the item in the underground structure at the second time.