Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 25.  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)
 02/26/2023   10:39:32   (   0.02,-136.99) (   0.35,-138.34)  154.09                80
 02/27/2023   10:18:08   (   0.02,-136.98) (  -0.68,-133.81)  361.32                80
 02/28/2023   22:40:04   (  -0.03,-136.97) (  -0.51,-139.12)  245.44                80
 03/01/2023   22:24:00   (  -0.03,-136.95) (   0.52,-134.59)  269.66                80
 03/03/2023   10:45:47   (   0.04,-136.94) (   0.67,-139.86)  332.70                80
 03/04/2023   10:24:21   (   0.04,-136.93) (  -0.30,-135.32)  182.11                80
 03/05/2023   22:48:58   (  -0.04,-136.90) (  -0.87,-140.63)  425.44                80
 03/06/2023   22:27:32   (  -0.04,-136.88) (   0.11,-136.10)   89.22                80
 03/09/2023   10:30:35   (   0.04,-136.84) (   0.03,-136.84)    1.43                80