Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/19/2021   06:24:02   (  -0.13, -75.21) (  -0.13, -75.08)   13.69                80
 08/21/2021   18:27:15   (   0.14, -75.20) (  -0.01, -75.87)   76.18                80
 08/22/2021   18:11:11   (   0.13, -75.20) (   0.98, -71.33)  440.51                80
 08/24/2021   06:33:00   (  -0.14, -75.22) (   0.15, -76.62)  158.76                80
 08/25/2021   06:11:36   (  -0.14, -75.22) (  -0.85, -72.08)  358.37                80
 08/26/2021   18:33:33   (   0.14, -75.23) (  -0.34, -77.39)  245.59                80
 08/27/2021   18:17:29   (   0.14, -75.24) (   0.65, -72.85)  272.02                80
 08/29/2021   06:39:18   (  -0.15, -75.27) (   0.47, -78.13)  325.90                80
 08/30/2021   06:17:53   (  -0.15, -75.28) (  -0.52, -73.60)  191.69                80
 08/31/2021   18:39:51   (   0.16, -75.29) (  -0.66, -78.91)  411.94                80
 09/01/2021   18:23:47   (   0.16, -75.31) (   0.39, -74.39)  105.98                80