Deductions on the Google map challenge

Several readers have submitted insightful speculations on the date of the aerial photo currently describing our home on Google Maps. Since many of you probably don't know our yard as intimately as I do, I'll share my observations so we can try to narrow the photo date as closely as possible.

The "A" in the photo below identifies the teeter totter, which according to a previous post was placed into service on September 17. Unfortunately, I'm not able to tell from this image whether the upper level of the pivot is complete or not. On to the next clue.

The "B" on the left side of the photo designates the approximate location in the field that serves as our corn-measuring spot. Apparent in this photo, and even more apparent if you zoom out to see more of the cornfield, is the fact that the field has been harvested, and tilled. We know from another post that harvest happened on September 7 (which doesn't narrow the satellite image date), but we haven't noted in the blog when the tilling took place. We do, however, have a post about the second crop of corn that grew this fall, and a photo from September 27 that shows the field untilled. That helps, and we can narrow the photo to sometime between September 27 and December 16 when we first posted the Google Map image.

Moving on to item "C." Some readers noticed the absence of the gravel path from the house to the barn as described in another post. That post was dated November 11, but I know that the path was built the previous Saturday, November 6. That narrows the image down to about a 40-day window, Sep 27 to Nov 6, but I think we can do better than that.

Area "D" on the image locates a bare-dirt section of the yard that I tilled the same day Farmer Wagenbach tilled the big field next to us. As I recall, that was October 2. That day I was able to sow a bit of the grass seed on the south end of the dirt patch and immediately watered only that section. Over the next week, I eventually sowed all the grass seed, and began watering the entire patch. The Google Maps image appears to show damp earth only on the south end of the patch, so I think the image must have been taken sometime in that first full week of October, and at the latest, sometime in the second week. That's the best I can do with the data I have right now, but if my neighbors have good records, we might be able to narrow the date further. If so, you'll be the first to know!