Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 7 15.  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)
 07/15/2023   18:06:28   (  -0.00, -75.21) (   0.90, -71.16)  460.57                80
 07/17/2023   06:30:55   (  -0.02, -75.20) (   0.23, -76.44)  140.88                80
 07/18/2023   06:09:29   (  -0.02, -75.20) (  -0.78, -71.91)  375.92                80
 07/19/2023   18:31:24   (   0.02, -75.21) (  -0.45, -77.20)  227.03                80
 07/20/2023   18:15:18   (   0.01, -75.22) (   0.57, -72.66)  290.47                80
 07/22/2023   06:34:24   (  -0.00, -75.22) (   0.62, -77.93)  308.73                80
 07/23/2023   06:18:19   (   0.00, -75.23) (  -0.40, -73.40)  209.14                80
 07/24/2023   18:37:34   (  -0.00, -75.25) (  -0.76, -78.70)  392.60                80
 07/25/2023   18:21:29   (  -0.00, -75.27) (   0.27, -74.17)  125.40                80
 07/27/2023   06:43:15   (  -0.01, -75.28) (   0.91, -79.44)  473.61                80
 07/28/2023   06:21:50   (  -0.01, -75.29) (  -0.11, -74.90)   44.41                80