Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NPP
TLE Epoch: 2021 8 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NPP Lat/Lon    Distance(km)  Time Diff(sec)
 08/14/2021   06:20:24   (  -0.11, -75.23) (  -0.47, -73.57)  188.80                80
 08/15/2021   18:39:41   (   0.12, -75.23) (  -0.72, -78.88)  415.72                80
 08/16/2021   18:23:38   (   0.12, -75.24) (   0.33, -74.35)  101.01                80
 08/18/2021   06:45:26   (  -0.13, -75.25) (   0.86, -79.62)  498.95                80
 08/19/2021   06:26:43   (  -0.13, -75.25) (  -0.19, -75.10)   18.02                80
 08/21/2021   18:27:16   (   0.14, -75.27) (  -0.00, -75.87)   68.75                80
 08/22/2021   18:11:12   (   0.14, -75.28) (   1.05, -71.35)  449.04                80
 08/24/2021   06:33:00   (  -0.15, -75.31) (   0.14, -76.62)  148.80                80
 08/25/2021   06:11:36   (  -0.14, -75.33) (  -0.86, -72.08)  369.43                80
 08/26/2021   18:33:33   (   0.15, -75.35) (  -0.33, -77.39)  232.62                80
 08/27/2021   18:17:30   (   0.15, -75.38) (   0.73, -72.87)  286.10                80