Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 12 12.  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)
 12/13/2023   06:34:55   (  -0.01, -75.21) (   0.67, -78.12)  332.77                80
 12/14/2023   06:18:50   (  -0.00, -75.21) (  -0.33, -73.59)  183.68                80
 12/15/2023   18:38:07   (   0.00, -75.21) (  -0.81, -78.90)  419.90                80
 12/16/2023   18:22:03   (   0.00, -75.22) (   0.20, -74.37)   96.89                80
 12/19/2023   06:22:27   (  -0.00, -75.23) (  -0.03, -75.11)   13.42                80
 12/21/2023   18:25:39   (   0.00, -75.26) (  -0.15, -75.88)   71.09                80
 12/22/2023   18:09:34   (  -0.00, -75.27) (   0.87, -71.35)  446.80                80
 12/24/2023   06:31:22   (   0.00, -75.29) (   0.30, -76.62)  152.21                80
 12/25/2023   06:09:58   (   0.01, -75.30) (  -0.71, -72.09)  365.73                80