Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 28.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 02/28/2023   22:40:04   (  -0.02,-137.00) (  -0.50,-139.12)  241.69                80
 03/01/2023   22:24:00   (  -0.02,-137.00) (   0.53,-134.59)  274.64                80
 03/03/2023   10:45:47   (   0.03,-137.01) (   0.66,-139.86)  325.05                80
 03/04/2023   10:24:21   (   0.03,-137.01) (  -0.32,-135.33)  190.99                80
 03/05/2023   22:46:18   (  -0.04,-136.99) (  -0.85,-140.64)  415.51                80
 03/06/2023   22:30:12   (  -0.04,-136.99) (   0.14,-136.10)  100.39                80
 03/08/2023   10:52:00   (   0.04,-136.99) (   1.04,-141.37)  499.93                80
 03/09/2023   10:30:35   (   0.04,-136.98) (  -0.01,-136.85)   15.71                80
 03/11/2023   22:33:45   (  -0.04,-136.94) (  -0.20,-137.61)   76.71                80
 03/12/2023   22:17:39   (  -0.04,-136.93) (   0.79,-133.08)  438.19                80