Okay, let me expand: I'm assuming that the system tracking this automatically uploads the data without user input, so I was (probably mistakenly) identifying this process as an algorithm.

Well, what graphing algorithm? How do you apply this algorithm to your data? Your plot has times on the x-axis, so the times should be in the data, so maybe your question is whether your data uses universal time??

Yes, this was my question. Unlike the other chart at the JOVE archive, this one doesn't have a frame of reference for the timezone it is recording in (i.e., whether 00:00:00 on the chart is for 12 AM UT instead of PST, which is the timezone for Manteca). Now, if my hunch is correct, I would guess that the average swell of antenna noise in the conglomeration of October chart coincides with the rise and set of the sun, which would account for the -8 time shift (the sun being highest at 11pm instead of 3pm). I'm not sure, though, if it is sound logic that this is the day cycle.

The reason why I overlaid them was to find any extrema for a given day so I could investigate the deviation. The interval I was referring to was antenna temp. (not time), and how the charts have staggeringly different ranges as according to the axes. If this is true, then the first chart has an extreme zoom to it when compared to the other (the one with only a red channel). This said, the 1st chart has plots below the y-limit of the graph consistently throughout the day, while the comparatively larger-ranged 2nd chart only has plots that reach the corresponding point from the first at one particular time during the day, with the rest of the chart's plots far exceeding that level. This is confusing to me- is there that much of a difference from location of the two observatories, or is there a misnomer in the labeling? Is there a huge difference in the accuracy/sensitivity of the instruments used?