Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 3.  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)
 02/04/2023   10:52:07   (  -0.01,-136.98) (   0.94,-141.34)  495.40                80
 02/05/2023   10:33:22   (  -0.01,-136.97) (  -0.08,-136.80)   20.16                80
 02/07/2023   22:33:51   (   0.01,-136.94) (  -0.12,-137.57)   71.63                80
 02/08/2023   22:17:45   (   0.01,-136.92) (   0.90,-133.04)  443.54                80
 02/10/2023   10:36:51   (  -0.02,-136.90) (   0.27,-138.30)  158.99                80
 02/11/2023   10:20:45   (  -0.02,-136.89) (  -0.70,-133.76)  355.78                80
 02/12/2023   22:40:00   (   0.02,-136.85) (  -0.45,-139.07)  252.35                80
 02/13/2023   22:23:54   (   0.02,-136.83) (   0.52,-134.53)  261.80                80
 02/15/2023   10:43:00   (  -0.02,-136.79) (   0.65,-139.80)  342.56                80
 02/16/2023   10:26:55   (  -0.03,-136.76) (  -0.38,-135.27)  170.88                80