Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 9 16.  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)
 09/16/2023   18:24:50   (  -0.06, -75.22) (  -0.14, -75.67)   51.17                80
 09/17/2023   18:08:45   (  -0.06, -75.22) (   0.87, -71.14)  465.70                80
 09/19/2023   06:30:33   (   0.05, -75.22) (   0.33, -76.40)  135.05                80
 09/20/2023   06:09:08   (   0.06, -75.23) (  -0.69, -71.88)  381.79                80
 09/21/2023   18:31:05   (  -0.05, -75.24) (  -0.51, -77.18)  221.55                80
 09/22/2023   18:15:00   (  -0.05, -75.25) (   0.51, -72.65)  295.35                80
 09/24/2023   06:36:48   (   0.04, -75.25) (   0.63, -77.93)  305.23                80
 09/25/2023   06:15:24   (   0.04, -75.26) (  -0.40, -73.40)  211.80                80
 09/26/2023   18:37:20   (  -0.03, -75.28) (  -0.79, -78.71)  390.90                80
 09/27/2023   18:21:16   (  -0.03, -75.29) (   0.24, -74.18)  126.86                80
 09/29/2023   06:43:03   (   0.02, -75.31) (   0.94, -79.45)  471.87                80