Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 12 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)
 12/19/2023   06:22:26   (  -0.01, -75.24) (  -0.02, -75.10)   15.01                80
 12/21/2023   18:25:39   (   0.01, -75.28) (  -0.10, -75.89)   69.00                80
 12/22/2023   18:09:34   (   0.00, -75.29) (   0.86, -71.34)  449.27                80
 12/24/2023   06:31:22   (   0.00, -75.31) (   0.30, -76.62)  149.29                80
 12/25/2023   06:09:57   (   0.01, -75.32) (  -0.72, -72.09)  368.96                80
 12/26/2023   18:31:54   (  -0.01, -75.36) (  -0.45, -77.39)  231.83                80
 12/27/2023   18:15:49   (  -0.01, -75.38) (   0.57, -72.86)  286.85                80
 12/29/2023   06:37:37   (   0.01, -75.41) (   0.64, -78.12)  310.51                80
 12/30/2023   06:16:12   (   0.00, -75.43) (  -0.39, -73.59)  208.45                80