Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/22/2019   10:11:37   (   0.04,-128.49) (   0.83,-131.87)  384.99                80
 11/23/2019   09:55:33   (   0.06,-128.49) (  -0.23,-127.34)  130.98                80
 11/24/2019   22:14:48   (  -0.03,-128.44) (  -0.98,-132.64)  479.38                80
 11/25/2019   21:58:43   (  -0.05,-128.43) (   0.01,-128.11)   36.35                80
 11/28/2019   09:59:05   (   0.04,-128.43) (   0.14,-128.84)   47.33                80
 11/29/2019   09:42:59   (   0.05,-128.42) (  -0.85,-124.31)  467.85                80
 11/30/2019   22:02:16   (  -0.03,-128.36) (  -0.29,-129.62)  143.58                80
 12/01/2019   21:46:10   (  -0.04,-128.34) (   0.70,-125.09)  371.51                80
 12/03/2019   10:05:17   (   0.02,-128.35) (   0.44,-130.36)  228.20                80
 12/04/2019   09:49:12   (   0.03,-128.34) (  -0.55,-125.82)  286.71                80