Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 20.  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)
 10/21/2023   06:27:44   (   0.04, -75.21) (   0.33, -76.39)  134.98                80
 10/22/2023   06:11:42   (   0.04, -75.21) (  -0.70, -71.87)  380.78                80
 10/23/2023   18:31:01   (  -0.03, -75.22) (  -0.49, -77.18)  224.16                80
 10/24/2023   18:14:59   (  -0.03, -75.23) (   0.54, -72.67)  292.23                80
 10/26/2023   06:34:09   (   0.02, -75.24) (   0.64, -77.95)  308.46                80
 10/27/2023   06:15:26   (   0.03, -75.25) (  -0.39, -73.43)  208.40                80
 10/28/2023   18:37:26   (  -0.02, -75.28) (  -0.78, -78.75)  395.06                80
 10/29/2023   18:21:22   (  -0.03, -75.29) (   0.20, -74.22)  122.18                80
 10/31/2023   06:43:12   (   0.02, -75.31) (   0.97, -79.50)  477.39                80
 11/01/2023   06:21:50   (   0.02, -75.33) (  -0.07, -74.98)   39.93                80
 11/03/2023   18:25:06   (  -0.02, -75.37) (  -0.10, -75.77)   45.20                80