Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 6.  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)
 02/07/2023   22:33:50   (   0.02,-136.99) (  -0.14,-137.56)   65.79                80
 02/08/2023   22:17:45   (   0.02,-136.99) (   0.89,-133.03)  451.09                80
 02/10/2023   10:39:31   (  -0.02,-137.00) (   0.28,-138.30)  148.68                80
 02/11/2023   10:18:06   (  -0.02,-137.00) (  -0.74,-133.77)  367.71                80
 02/12/2023   22:40:00   (   0.02,-136.98) (  -0.47,-139.07)  238.05                80
 02/13/2023   22:23:55   (   0.02,-136.98) (   0.56,-134.54)  277.72                80
 02/15/2023   10:43:01   (  -0.03,-136.96) (   0.60,-139.81)  323.93                80
 02/16/2023   10:26:55   (  -0.03,-136.95) (  -0.43,-135.28)  191.13                80
 02/17/2023   22:46:10   (   0.04,-136.92) (  -0.77,-140.58)  416.57                80
 02/18/2023   22:30:04   (   0.04,-136.90) (   0.26,-136.05)   98.31                80