Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 26.  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)
 03/26/2025   22:46:52   (  -0.00,-137.00) (  -0.81,-140.63)  414.16                80
 03/27/2025   22:30:47   (  -0.00,-137.00) (   0.21,-136.10)  102.71                80
 03/29/2025   10:52:32   (   0.00,-136.99) (   1.00,-141.36)  497.88                80
 03/30/2025   10:31:07   (  -0.00,-136.99) (  -0.03,-136.82)   18.56                80
 04/01/2025   22:34:15   (   0.00,-136.98) (  -0.15,-137.59)   69.76                80
 04/02/2025   22:18:10   (   0.00,-136.97) (   0.89,-133.06)  446.06                80
 04/04/2025   10:37:15   (  -0.00,-136.94) (   0.30,-138.31)  156.33                80
 04/05/2025   10:21:09   (  -0.00,-136.93) (  -0.69,-133.77)  359.13                80
 04/06/2025   22:40:23   (   0.01,-136.91) (  -0.49,-139.07)  246.31                80
 04/07/2025   22:24:17   (   0.01,-136.90) (   0.51,-134.53)  269.25                80
 04/09/2025   10:43:22   (  -0.01,-136.87) (   0.67,-139.79)  333.34                80