Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 4.  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)
 10/05/2023   06:30:30   (   0.04, -75.20) (   0.32, -76.41)  137.12                80
 10/06/2023   06:09:04   (   0.04, -75.20) (  -0.68, -71.87)  379.49                80
 10/07/2023   18:31:01   (  -0.03, -75.22) (  -0.48, -77.18)  223.35                80
 10/08/2023   18:14:55   (  -0.03, -75.23) (   0.52, -72.64)  293.88                80
 10/10/2023   06:36:42   (   0.02, -75.23) (   0.62, -77.92)  306.28                80
 10/11/2023   06:15:17   (   0.02, -75.24) (  -0.38, -73.38)  211.38                80
 10/12/2023   18:37:13   (  -0.02, -75.27) (  -0.76, -78.69)  389.98                80
 10/13/2023   18:21:08   (  -0.02, -75.28) (   0.25, -74.16)  128.32                80
 10/15/2023   06:42:54   (   0.02, -75.29) (   0.94, -79.42)  470.20                80
 10/16/2023   06:21:29   (   0.02, -75.31) (  -0.08, -74.89)   48.14                80