Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 6 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 06/02/2019   21:58:45   (  -0.01,-128.44) (   0.09,-128.13)   35.82                80
 06/05/2019   09:59:09   (  -0.00,-128.41) (   0.11,-128.87)   52.10                80
 06/06/2019   09:43:05   (   0.01,-128.40) (  -0.89,-124.33)  463.02                80
 06/07/2019   22:02:22   (   0.01,-128.38) (  -0.27,-129.64)  143.53                80
 06/08/2019   21:46:17   (  -0.00,-128.37) (   0.73,-125.11)  371.64                80
 06/10/2019   10:05:26   (  -0.02,-128.35) (   0.46,-130.38)  232.29                80
 06/11/2019   09:49:21   (  -0.01,-128.33) (  -0.53,-125.85)  282.54                80
 06/12/2019   22:08:39   (   0.03,-128.31) (  -0.62,-131.16)  325.11                80
 06/13/2019   21:52:34   (   0.02,-128.29) (   0.38,-126.62)  189.69                80
 06/15/2019   10:11:43   (  -0.05,-128.27) (   0.76,-131.90)  414.49                80
 06/16/2019   09:55:39   (  -0.04,-128.24) (  -0.24,-127.37)   99.73                80