Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 19.  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)
 03/19/2023   18:20:02   (   0.06, -75.22) (   0.28, -74.27)  107.34                80
 03/21/2023   06:44:28   (  -0.06, -75.23) (   0.90, -79.54)  491.64                80
 03/22/2023   06:23:03   (  -0.06, -75.24) (  -0.12, -75.01)   26.19                80
 03/24/2023   18:28:51   (   0.06, -75.28) (  -0.07, -75.77)   57.06                80
 03/25/2023   18:07:26   (   0.06, -75.29) (   0.96, -71.24)  461.38                80
 03/27/2023   06:31:52   (  -0.05, -75.31) (   0.21, -76.51)  136.28                80
 03/28/2023   06:10:27   (  -0.05, -75.33) (  -0.82, -71.98)  382.31                80
 03/29/2023   18:35:01   (   0.05, -75.36) (  -0.38, -77.28)  218.04                80
 03/30/2023   18:13:36   (   0.04, -75.39) (   0.66, -72.75)  301.11                80
 04/01/2023   06:38:01   (  -0.03, -75.42) (   0.56, -78.01)  295.18                80