Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 3 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 03/12/2021   06:22:59   (  -0.03, -75.19) (  -0.10, -74.95)   28.23                80
 03/14/2021   18:26:10   (   0.03, -75.21) (  -0.08, -75.71)   57.65                80
 03/15/2021   18:10:06   (   0.03, -75.22) (   0.95, -71.19)  459.74                80
 03/17/2021   06:31:53   (  -0.03, -75.23) (   0.23, -76.45)  139.51                80
 03/18/2021   06:10:27   (  -0.03, -75.23) (  -0.75, -71.91)  377.90                80
 03/19/2021   18:32:24   (   0.03, -75.25) (  -0.41, -77.22)  224.42                80
 03/20/2021   18:16:19   (   0.03, -75.26) (   0.63, -72.69)  293.44                80
 03/22/2021   06:38:07   (  -0.02, -75.28) (   0.56, -77.96)  304.78                80
 03/23/2021   06:16:41   (  -0.02, -75.29) (  -0.42, -73.42)  213.08                80
 03/24/2021   18:38:37   (   0.01, -75.31) (  -0.73, -78.73)  388.85                80
 03/25/2021   18:22:32   (   0.00, -75.33) (   0.25, -74.19)  129.55                80