Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 11 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)
 11/19/2021   18:40:50   (  -0.01, -75.19) (  -0.88, -78.96)  429.42                80
 11/20/2021   18:24:44   (  -0.02, -75.20) (   0.14, -74.43)   87.57                80
 11/23/2021   06:25:05   (   0.03, -75.20) (   0.02, -75.16)    4.36                80
 11/25/2021   18:28:14   (  -0.03, -75.21) (  -0.21, -75.92)   81.32                80
 11/26/2021   18:12:08   (  -0.03, -75.22) (   0.81, -71.39)  436.27                80
 11/28/2021   06:33:55   (   0.03, -75.23) (   0.37, -76.66)  162.71                80
 11/29/2021   06:12:29   (   0.03, -75.24) (  -0.66, -72.13)  355.07                80
 11/30/2021   18:34:25   (  -0.03, -75.26) (  -0.49, -77.43)  246.87                80
 12/01/2021   18:18:18   (  -0.03, -75.28) (   0.48, -72.89)  271.35                80