Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 28.  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)
 03/29/2025   10:49:52   (  -0.01,-136.99) (   1.00,-141.36)  497.91                80
 03/30/2025   10:33:47   (  -0.01,-136.99) (  -0.03,-136.82)   18.79                80
 04/01/2025   22:34:15   (   0.01,-136.98) (  -0.16,-137.58)   69.50                80
 04/02/2025   22:18:10   (   0.01,-136.97) (   0.88,-133.05)  446.44                80
 04/04/2025   10:37:15   (  -0.01,-136.95) (   0.31,-138.31)  155.74                80
 04/05/2025   10:21:10   (  -0.01,-136.94) (  -0.73,-133.78)  359.82                80
 04/06/2025   22:40:24   (   0.02,-136.92) (  -0.46,-139.08)  245.64                80
 04/07/2025   22:24:18   (   0.02,-136.91) (   0.53,-134.54)  269.99                80
 04/09/2025   10:43:23   (  -0.02,-136.89) (   0.65,-139.80)  332.34                80
 04/10/2025   10:27:17   (  -0.02,-136.87) (  -0.40,-135.27)  183.25                80