Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 25.  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)
 06/26/2023   06:22:13   (  -0.01, -75.20) (  -0.07, -74.95)   27.80                80
 06/28/2023   18:25:24   (   0.02, -75.19) (  -0.09, -75.73)   60.94                80
 06/29/2023   18:09:18   (   0.02, -75.19) (   0.90, -71.19)  455.49                80
 07/01/2023   06:31:06   (  -0.02, -75.19) (   0.24, -76.47)  144.79                80
 07/02/2023   06:12:20   (  -0.02, -75.19) (  -0.75, -71.93)  371.62                80
 07/03/2023   18:31:36   (   0.02, -75.18) (  -0.44, -77.23)  233.28                80
 07/04/2023   18:15:30   (   0.02, -75.18) (   0.56, -72.69)  283.44                80
 07/06/2023   06:34:37   (  -0.02, -75.19) (   0.58, -77.97)  316.05                80
 07/07/2023   06:18:32   (  -0.01, -75.20) (  -0.42, -73.43)  201.23                80
 07/08/2023   18:37:47   (   0.01, -75.21) (  -0.76, -78.74)  402.16                80