Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 12 6.  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)
 12/08/2023   06:31:19   (  -0.00, -75.20) (   0.31, -76.61)  160.53                80
 12/09/2023   06:09:54   (   0.00, -75.21) (  -0.69, -72.08)  356.08                80
 12/10/2023   18:31:52   (  -0.00, -75.22) (  -0.46, -77.39)  247.19                80
 12/11/2023   18:15:47   (  -0.01, -75.22) (   0.55, -72.86)  269.67                80
 12/13/2023   06:37:35   (   0.01, -75.22) (   0.63, -78.13)  331.22                80
 12/14/2023   06:16:11   (   0.01, -75.22) (  -0.38, -73.60)  185.47                80
 12/15/2023   18:38:07   (  -0.01, -75.23) (  -0.82, -78.90)  417.83                80
 12/16/2023   18:22:03   (  -0.01, -75.24) (   0.20, -74.37)   99.26                80
 12/19/2023   06:22:27   (   0.00, -75.26) (  -0.04, -75.11)   17.08                80