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I have some data in ArcGIS, but unfortunately there isn't projection coordinate, like the picture below:

Fig. a Fig. b

This place is in America and its longitude and latitude is about -75.2° and 40.1°. Can anyone guess its "projection coordinate"?

As suggested by @JGH, the projection coordinate is "Pennsylvania State Plane South (3702)"!It matches perfectly!

Besides this shapefile above (Place 1), there is another file (Place 2, the same place), but they are not overlapped. I was wondering the projection of this shapefile.

Fig. c

marked as duplicate by PolyGeo Nov 5 '17 at 5:28

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • If you have another question please ask it as a new question but be sure to search for any earlier Q&A that may already answer it first. – PolyGeo Nov 5 '17 at 21:56
  • Thanks. But I suppose my second question is quite related to the first one, so I put them together. – T X Nov 6 '17 at 0:55
  • Please take the Tour to learn about our focused Q&A format. Whether questions are related does not influence whether they can be asked in the same question. – PolyGeo Nov 6 '17 at 1:16
1

It looks like Pennsylvania State Plane South (3702)

Using the coordinates you provided, expressed in feet, they are converted to 40.1330528°, -075.1709156°

  • It works perfectly! I am wondering if you could guess another place's projection? It is the same place as above, but they cannot overlap. As a result, I think the Place 2 is not the "Pennsylvania State Plane South". – T X Nov 5 '17 at 14:43
  • @TX please consider accepting the answer then so other know (green check mark to the left). – JGH Nov 5 '17 at 16:18
  • I have accepted it. I use this website to calculate some projection(e.g. Pennsylvania State Plane South & North,both in feet and meter), but failed. Could you give me some advice? – T X Nov 6 '17 at 0:53

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