Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 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)
 08/13/2021   06:36:29   (  -0.12, -75.23) (   0.51, -78.11)  327.96                80
 08/14/2021   06:20:24   (  -0.12, -75.23) (  -0.48, -73.57)  188.64                80
 08/15/2021   18:39:41   (   0.13, -75.23) (  -0.71, -78.88)  415.74                80
 08/16/2021   18:23:38   (   0.13, -75.24) (   0.33, -74.35)  101.00                80
 08/18/2021   06:45:26   (  -0.14, -75.25) (   0.85, -79.62)  499.09                80
 08/19/2021   06:26:43   (  -0.14, -75.25) (  -0.20, -75.10)   17.88                80
 08/21/2021   18:27:16   (   0.15, -75.27) (   0.00, -75.87)   68.69                80
 08/22/2021   18:11:12   (   0.15, -75.29) (   1.05, -71.35)  449.11                80
 08/24/2021   06:33:01   (  -0.15, -75.31) (   0.14, -76.62)  148.86                80
 08/25/2021   06:12:39   (  -0.15, -75.33) (  -0.86, -72.09)  369.38                17