Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NPP
TLE Epoch: 2019 11 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 11/23/2019   09:55:33   (   0.06,-128.49) (  -0.20,-127.34)  130.93                80
 11/24/2019   22:14:48   (  -0.03,-128.44) (  -1.00,-132.64)  479.36                80
 11/25/2019   21:58:43   (  -0.05,-128.43) (   0.05,-128.11)   36.47                80
 11/28/2019   09:59:05   (   0.04,-128.43) (   0.11,-128.85)   47.45                80
 11/29/2019   09:43:00   (   0.05,-128.42) (  -0.89,-124.32)  467.85                80
 11/30/2019   22:02:15   (  -0.03,-128.36) (  -0.32,-129.62)  143.53                80
 12/01/2019   21:46:10   (  -0.04,-128.34) (   0.68,-125.08)  371.54                80
 12/03/2019   10:05:17   (   0.02,-128.35) (   0.47,-130.35)  228.20                80
 12/04/2019   09:49:11   (   0.03,-128.34) (  -0.53,-125.82)  286.70                80
 12/05/2019   22:08:27   (  -0.00,-128.27) (  -0.67,-131.12)  325.13                80