Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 19.  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)
 02/21/2023   10:30:37   (   0.02,-136.88) (   0.01,-136.81)    7.20                80
 02/23/2023   22:36:29   (  -0.02,-136.83) (  -0.20,-137.59)   86.48                80
 02/24/2023   22:15:04   (  -0.02,-136.81) (   0.82,-133.06)  427.53                80
 02/26/2023   10:39:32   (   0.02,-136.78) (   0.38,-138.33)  176.91                80
 02/27/2023   10:18:07   (   0.02,-136.76) (  -0.64,-133.80)  336.65                80
 02/28/2023   22:42:44   (  -0.03,-136.72) (  -0.54,-139.11)  272.38                80
 03/01/2023   22:21:18   (  -0.03,-136.69) (   0.43,-134.57)  240.91                80
 03/03/2023   10:45:45   (   0.04,-136.65) (   0.77,-139.84)  364.52                80
 03/04/2023   10:24:21   (   0.03,-136.62) (  -0.26,-135.32)  148.45                80