Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 7 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)
 07/12/2021   06:36:07   (  -0.08, -75.16) (   0.55, -78.05)  328.10                80
 07/13/2021   06:20:03   (  -0.07, -75.18) (  -0.43, -73.51)  189.51                80
 07/14/2021   18:39:21   (   0.08, -75.21) (  -0.70, -78.83)  412.09                80
 07/15/2021   18:23:17   (   0.08, -75.23) (   0.28, -74.29)  106.07                80
 07/17/2021   06:42:26   (  -0.09, -75.24) (   0.88, -79.57)  492.96                80
 07/18/2021   06:26:22   (  -0.08, -75.26) (  -0.16, -75.05)   25.38                80
 07/20/2021   18:26:55   (   0.09, -75.32) (  -0.05, -75.82)   57.93                80
 07/21/2021   18:10:52   (   0.09, -75.34) (   1.00, -71.29)  460.56                80
 07/23/2021   06:30:01   (  -0.11, -75.36) (   0.16, -76.57)  137.84                80
 07/24/2021   06:13:57   (  -0.10, -75.38) (  -0.83, -72.04)  380.85                80
 07/25/2021   18:33:15   (   0.12, -75.43) (  -0.30, -77.36)  219.44                80