Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 4.  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)
 10/05/2023   06:30:29   (   0.04, -75.20) (   0.33, -76.40)  137.23                80
 10/06/2023   06:09:05   (   0.04, -75.20) (  -0.72, -71.88)  379.35                80
 10/07/2023   18:31:00   (  -0.03, -75.22) (  -0.49, -77.17)  223.41                80
 10/08/2023   18:14:56   (  -0.03, -75.22) (   0.56, -72.65)  293.78                80
 10/10/2023   06:36:42   (   0.02, -75.22) (   0.63, -77.91)  306.56                80
 10/11/2023   06:15:17   (   0.02, -75.23) (  -0.37, -73.38)  211.07                80
 10/12/2023   18:37:13   (  -0.02, -75.26) (  -0.76, -78.69)  390.20                80
 10/13/2023   18:21:07   (  -0.02, -75.28) (   0.25, -74.16)  128.06                80
 10/15/2023   06:42:54   (   0.02, -75.29) (   0.93, -79.42)  470.62                80
 10/16/2023   06:21:28   (   0.02, -75.30) (  -0.08, -74.89)   47.71                80
 10/18/2023   18:24:38   (  -0.02, -75.35) (  -0.07, -75.66)   34.69                80