Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 9 29.  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)
 09/29/2023   06:40:22   (   0.05, -75.20) (   1.00, -79.43)  481.85                80
 09/30/2023   06:24:17   (   0.05, -75.21) (  -0.04, -74.90)   35.12                80
 10/02/2023   18:24:48   (  -0.05, -75.23) (  -0.16, -75.67)   50.92                80
 10/03/2023   18:08:43   (  -0.05, -75.23) (   0.89, -71.15)  466.40                80
 10/05/2023   06:30:30   (   0.04, -75.24) (   0.33, -76.41)  133.24                80
 10/06/2023   06:09:05   (   0.04, -75.25) (  -0.72, -71.88)  384.27                80
 10/07/2023   18:31:02   (  -0.03, -75.27) (  -0.44, -77.19)  218.07                80
 10/08/2023   18:14:56   (  -0.03, -75.29) (   0.55, -72.65)  299.98                80
 10/10/2023   06:36:43   (   0.02, -75.31) (   0.60, -77.93)  298.08                80
 10/11/2023   06:15:18   (   0.02, -75.33) (  -0.39, -73.39)  220.43                80
 10/12/2023   18:37:14   (  -0.02, -75.36) (  -0.75, -78.70)  380.40                80