Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 2 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2021   18:38:44   (   0.00, -75.18) (  -0.79, -78.74)  405.94                80
 02/21/2021   18:22:39   (  -0.01, -75.19) (   0.24, -74.22)  111.43                80
 02/23/2021   06:44:26   (   0.01, -75.20) (   0.96, -79.48)  487.91                80
 02/24/2021   06:23:02   (   0.00, -75.20) (  -0.07, -74.95)   29.04                80
 02/26/2021   18:26:13   (   0.00, -75.22) (  -0.12, -75.72)   57.10                80
 02/27/2021   18:10:08   (   0.00, -75.23) (   0.91, -71.19)  460.65                80
 03/01/2021   06:31:56   (  -0.00, -75.26) (   0.29, -76.45)  137.33                80
 03/02/2021   06:10:31   (  -0.00, -75.27) (  -0.74, -71.93)  380.55                80
 03/03/2021   18:32:27   (   0.00, -75.28) (  -0.42, -77.24)  221.98                80
 03/04/2021   18:16:22   (   0.00, -75.30) (   0.56, -72.70)  296.27                80