Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 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)
 10/04/2025   22:49:34   (   0.02,-137.00) (  -0.80,-140.66)  417.14                80
 10/05/2025   22:30:49   (   0.03,-137.00) (   0.24,-136.13)   99.68                80
 10/08/2025   10:31:09   (  -0.01,-136.98) (  -0.06,-136.85)   15.71                80
 10/10/2025   22:36:57   (  -0.00,-136.96) (  -0.13,-137.60)   72.86                80
 10/11/2025   22:15:30   (  -0.00,-136.95) (   0.86,-133.06)  442.65                80
 10/13/2025   10:39:55   (   0.01,-136.92) (   0.33,-138.32)  159.76                80
 10/14/2025   10:18:29   (   0.00,-136.90) (  -0.67,-133.78)  355.45                80
 10/15/2025   22:43:03   (  -0.01,-136.88) (  -0.49,-139.07)  250.04                80
 10/16/2025   22:21:37   (  -0.00,-136.86) (   0.51,-134.53)  265.31                80