Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 7 16.  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)
 07/17/2023   06:30:54   (  -0.01, -75.20) (   0.26, -76.43)  140.76                80
 07/18/2023   06:09:29   (  -0.01, -75.19) (  -0.76, -71.90)  375.55                80
 07/19/2023   18:31:24   (   0.01, -75.20) (  -0.42, -77.21)  228.25                80
 07/20/2023   18:15:19   (   0.01, -75.20) (   0.60, -72.67)  288.62                80
 07/22/2023   06:37:05   (  -0.01, -75.20) (   0.59, -77.94)  311.50                80
 07/23/2023   06:15:40   (  -0.01, -75.20) (  -0.43, -73.40)  205.78                80
 07/24/2023   18:37:34   (   0.01, -75.22) (  -0.79, -78.70)  396.76                80
 07/25/2023   18:21:28   (   0.01, -75.23) (   0.23, -74.16)  120.79                80
 07/27/2023   06:43:15   (  -0.00, -75.23) (   0.95, -79.43)  478.50                80
 07/28/2023   06:21:49   (  -0.00, -75.24) (  -0.07, -74.90)   39.07                80