Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 8 18.  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)
 08/18/2025   22:31:16   (   0.02,-137.00) (   0.18,-136.25)   84.93                80
 08/21/2025   10:31:38   (  -0.03,-136.99) (  -0.00,-136.98)    2.68                80
 08/23/2025   22:34:50   (   0.03,-137.01) (  -0.12,-137.77)   85.67                80
 08/24/2025   22:18:45   (   0.03,-137.01) (   0.86,-133.23)  431.11                80
 08/26/2025   10:40:33   (  -0.03,-137.00) (   0.30,-138.50)  170.71                80
 08/27/2025   10:19:09   (  -0.03,-137.00) (  -0.73,-133.97)  345.64                80
 08/28/2025   22:41:04   (   0.03,-137.01) (  -0.46,-139.27)  257.81                80
 08/29/2025   22:24:58   (   0.03,-137.00) (   0.52,-134.73)  258.08                80
 08/31/2025   10:46:47   (  -0.03,-136.98) (   0.64,-140.01)  345.23                80
 09/01/2025   10:25:22   (  -0.04,-136.97) (  -0.39,-135.48)  170.04                80