Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 09/22/2021   18:27:29   (   0.11, -75.20) (  -0.02, -75.88)   77.06                80
 09/23/2021   18:11:24   (   0.11, -75.20) (   0.99, -71.35)  439.42                80
 09/25/2021   06:33:13   (  -0.11, -75.20) (   0.18, -76.62)  161.00                80
 09/26/2021   06:11:48   (  -0.11, -75.20) (  -0.82, -72.08)  355.45                80
 09/27/2021   18:36:25   (   0.11, -75.20) (  -0.40, -77.38)  248.44                80
 09/28/2021   18:17:32   (   0.11, -75.21) (   0.67, -72.86)  268.32                71
 09/30/2021   06:39:28   (  -0.11, -75.22) (   0.56, -78.12)  331.29                80
 10/01/2021   06:18:05   (  -0.12, -75.22) (  -0.50, -73.60)  185.53                80
 10/02/2021   18:42:41   (   0.11, -75.23) (  -0.71, -78.89)  417.69                80
 10/03/2021   18:21:17   (   0.12, -75.24) (   0.30, -74.36)   99.70                80
 10/05/2021   06:45:45   (  -0.11, -75.26) (   0.87, -79.63)  498.48                80