Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 21.  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)
 03/21/2023   06:44:28   (  -0.06, -75.20) (   0.91, -79.54)  494.85                80
 03/22/2023   06:23:02   (  -0.07, -75.20) (  -0.11, -75.01)   21.54                80
 03/24/2023   18:28:51   (   0.06, -75.20) (  -0.08, -75.77)   65.93                80
 03/25/2023   18:07:26   (   0.07, -75.20) (   0.94, -71.24)  451.04                80
 03/27/2023   06:31:52   (  -0.06, -75.21) (   0.22, -76.51)  148.29                80
 03/28/2023   06:10:27   (  -0.06, -75.21) (  -0.81, -71.98)  368.88                80
 03/29/2023   18:35:01   (   0.05, -75.22) (  -0.39, -77.27)  234.25                80
 03/30/2023   18:13:34   (   0.05, -75.22) (   0.58, -72.73)  283.43                80
 04/01/2023   06:38:01   (  -0.04, -75.24) (   0.57, -78.00)  314.56                80
 04/02/2023   06:16:35   (  -0.04, -75.25) (  -0.46, -73.47)  203.49                80
 04/03/2023   18:41:09   (   0.03, -75.27) (  -0.78, -78.76)  398.33                80