Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 19.  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)
 03/20/2025   10:18:46   (  -0.00,-136.99) (  -0.70,-133.83)  360.54                80
 03/21/2025   22:40:42   (  -0.00,-137.00) (  -0.46,-139.14)  243.73                80
 03/22/2025   22:24:36   (  -0.00,-136.99) (   0.54,-134.60)  272.14                80
 03/24/2025   10:46:22   (   0.01,-136.96) (   0.68,-139.86)  330.44                80
 03/25/2025   10:24:56   (   0.01,-136.95) (  -0.33,-135.32)  185.07                80
 03/26/2025   22:46:53   (  -0.01,-136.94) (  -0.81,-140.64)  420.19                80
 03/27/2025   22:30:46   (  -0.01,-136.93) (   0.15,-136.09)   95.16                80
 03/30/2025   10:31:07   (   0.01,-136.88) (  -0.03,-136.83)    7.12                80
 04/01/2025   22:34:16   (  -0.02,-136.84) (  -0.15,-137.59)   85.03                80