Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 5.  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)
 11/05/2025   22:47:39   (   0.02,-137.02) (   0.00,-140.60)  398.79                 0
 11/06/2025   22:30:03   (   0.01,-137.01) (   0.23,-135.90)  125.72                80
 11/08/2025   10:51:55   (  -0.01,-137.00) (   0.92,-141.19)  477.60                80
 11/09/2025   10:30:32   (  -0.01,-136.99) (  -0.08,-136.67)   36.87                80
 11/11/2025   22:33:51   (   0.01,-136.98) (  -0.07,-137.47)   55.36                80
 11/12/2025   22:15:09   (   0.02,-136.97) (   0.94,-132.94)  459.27                80
 11/14/2025   10:39:39   (  -0.02,-136.95) (   0.26,-138.22)  144.33                80
 11/15/2025   10:18:16   (  -0.02,-136.94) (  -0.74,-133.69)  370.01                80
 11/16/2025   22:42:57   (   0.01,-136.93) (  -0.45,-139.01)  236.90                80
 11/17/2025   22:21:34   (   0.01,-136.92) (   0.56,-134.49)  277.32                80
 11/19/2025   10:46:05   (   0.00,-136.89) (   0.64,-139.76)  326.91                80