Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 13.  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)
 10/14/2025   10:18:31   (  -0.01,-136.99) (  -0.70,-133.78)  364.45                80
 10/15/2025   22:40:26   (   0.01,-137.00) (  -0.43,-139.09)  237.13                80
 10/16/2025   22:24:19   (   0.02,-137.01) (   0.56,-134.55)  280.39                80
 10/18/2025   10:46:05   (  -0.02,-137.00) (   0.62,-139.80)  319.40                80
 10/19/2025   10:24:38   (  -0.02,-137.01) (  -0.38,-135.26)  198.08                80
 10/20/2025   22:46:32   (  -0.01,-137.02) (  -0.81,-140.56)  403.46                80
 10/21/2025   22:30:26   (  -0.02,-137.02) (   0.18,-136.01)  113.79                80
 10/23/2025   10:52:11   (   0.02,-137.00) (   0.98,-141.27)  486.76                80
 10/24/2025   10:30:45   (   0.02,-137.00) (  -0.02,-136.73)   29.71                80
 10/26/2025   22:36:33   (  -0.02,-136.98) (  -0.16,-137.49)   58.11                80