Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 9 30.  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)
 10/02/2023   18:24:48   (  -0.05, -75.23) (  -0.15, -75.67)   50.85                80
 10/03/2023   18:08:44   (  -0.05, -75.23) (   0.89, -71.15)  466.42                80
 10/05/2023   06:30:30   (   0.04, -75.24) (   0.32, -76.41)  133.73                80
 10/06/2023   06:09:05   (   0.04, -75.25) (  -0.73, -71.88)  383.71                80
 10/07/2023   18:31:01   (  -0.03, -75.27) (  -0.49, -77.18)  218.26                80
 10/08/2023   18:14:56   (  -0.03, -75.28) (   0.56, -72.65)  299.77                80
 10/10/2023   06:36:43   (   0.02, -75.30) (   0.58, -77.93)  298.79                80
 10/11/2023   06:15:18   (   0.02, -75.32) (  -0.41, -73.39)  219.68                80
 10/12/2023   18:37:13   (  -0.02, -75.35) (  -0.79, -78.69)  380.78                80
 10/13/2023   18:21:09   (  -0.02, -75.38) (   0.28, -74.17)  138.32                80