Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 5 23.  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)
 05/24/2023   06:41:02   (  -0.02, -75.19) (   0.92, -79.46)  486.88                80
 05/25/2023   06:24:58   (  -0.02, -75.19) (  -0.09, -74.93)   29.31                80
 05/27/2023   18:25:30   (   0.02, -75.19) (  -0.11, -75.71)   59.12                80
 05/28/2023   18:09:25   (   0.02, -75.20) (   0.91, -71.18)  457.78                80
 05/30/2023   06:28:34   (  -0.03, -75.21) (   0.24, -76.46)  141.48                80
 05/31/2023   06:12:29   (  -0.03, -75.22) (  -0.78, -71.93)  375.69                80
 06/01/2023   18:31:45   (   0.03, -75.23) (  -0.41, -77.23)  228.31                80
 06/02/2023   18:15:41   (   0.03, -75.24) (   0.61, -72.71)  288.94                80
 06/04/2023   06:34:48   (  -0.04, -75.26) (   0.59, -77.97)  310.08                80
 06/05/2023   06:18:44   (  -0.04, -75.27) (  -0.44, -73.45)  207.18                80