Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 24.  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)
 03/25/2025   10:24:57   (   0.01,-136.99) (  -0.36,-135.33)  189.27                80
 03/26/2025   22:46:52   (  -0.01,-137.00) (  -0.84,-140.63)  414.06                80
 03/27/2025   22:30:46   (  -0.01,-137.00) (   0.19,-136.10)  102.63                80
 03/29/2025   10:52:33   (   0.01,-136.99) (   0.96,-141.36)  498.31                80
 03/30/2025   10:31:06   (   0.00,-136.98) (  -0.01,-136.82)   18.12                80
 04/01/2025   22:34:16   (   0.01,-136.97) (  -0.10,-137.60)   70.88                80
 04/02/2025   22:18:10   (   0.01,-136.96) (   0.88,-133.05)  444.80                80
 04/04/2025   10:37:15   (  -0.01,-136.93) (   0.31,-138.31)  157.72                80
 04/05/2025   10:21:08   (  -0.00,-136.92) (  -0.68,-133.77)  357.79                80
 04/06/2025   22:40:23   (   0.00,-136.90) (  -0.49,-139.07)  247.52                80