Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 12 8.  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)
 12/09/2023   06:12:34   (  -0.00, -75.20) (  -0.69, -72.08)  355.77                80
 12/10/2023   18:31:51   (   0.01, -75.22) (  -0.46, -77.39)  247.52                80
 12/11/2023   18:15:47   (  -0.00, -75.22) (   0.54, -72.86)  269.19                80
 12/13/2023   06:37:35   (  -0.00, -75.21) (   0.64, -78.13)  332.25                80
 12/14/2023   06:16:11   (   0.01, -75.21) (  -0.37, -73.60)  184.33                80
 12/15/2023   18:38:07   (  -0.00, -75.22) (  -0.83, -78.90)  418.93                80
 12/16/2023   18:22:03   (  -0.01, -75.23) (   0.19, -74.37)   98.04                80
 12/19/2023   06:22:26   (   0.00, -75.24) (  -0.03, -75.11)   15.11                80
 12/21/2023   18:25:38   (  -0.00, -75.28) (  -0.14, -75.88)   68.92                80
 12/22/2023   18:09:34   (  -0.01, -75.29) (   0.88, -71.35)  449.15                80