Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 07/28/2021   06:36:19   (  -0.10, -75.20) (   0.51, -78.08)  328.26                80
 07/29/2021   06:20:14   (  -0.10, -75.20) (  -0.47, -73.55)  188.05                80
 07/30/2021   18:39:32   (   0.11, -75.20) (  -0.72, -78.85)  416.38                80
 07/31/2021   18:23:28   (   0.11, -75.21) (   0.32, -74.33)  100.39                80
 08/02/2021   06:42:37   (  -0.12, -75.21) (   0.88, -79.60)  499.97                80
 08/03/2021   06:26:33   (  -0.12, -75.22) (  -0.17, -75.07)   16.85                80
 08/05/2021   18:27:06   (   0.13, -75.23) (  -0.04, -75.85)   70.44                80
 08/06/2021   18:11:02   (   0.13, -75.24) (   1.01, -71.32)  446.81                80
 08/08/2021   06:30:11   (  -0.14, -75.26) (   0.19, -76.59)  152.60                80
 08/09/2021   06:14:07   (  -0.14, -75.27) (  -0.86, -72.07)  364.82                80
 08/10/2021   18:33:25   (   0.15, -75.28) (  -0.33, -77.37)  238.35                80