Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 8 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2023   18:14:49   (  -0.05, -75.21) (   0.52, -72.57)  300.27                80
 08/23/2023   06:36:38   (   0.05, -75.21) (   0.63, -77.85)  301.23                80
 08/24/2023   06:15:14   (   0.05, -75.21) (  -0.36, -73.32)  214.64                80
 08/25/2023   18:37:11   (  -0.04, -75.21) (  -0.83, -78.63)  390.65                80
 08/26/2023   18:21:08   (  -0.04, -75.21) (   0.22, -74.11)  125.27                80
 08/28/2023   06:42:56   (   0.03, -75.21) (   0.98, -79.38)  476.07                80
 08/29/2023   06:24:12   (   0.02, -75.21) (  -0.07, -74.86)   40.05                80
 08/31/2023   18:24:45   (  -0.01, -75.23) (  -0.11, -75.64)   47.58                80
 09/01/2023   18:08:41   (  -0.01, -75.23) (   0.89, -71.11)  469.61                80
 09/03/2023   06:30:30   (   0.01, -75.25) (   0.25, -76.39)  129.59                80
 09/04/2023   06:09:06   (   0.02, -75.27) (  -0.75, -71.86)  387.93                80