Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 23.  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)
 03/24/2025   10:46:22   (   0.00,-136.99) (   0.64,-139.86)  327.99                80
 03/25/2025   10:24:57   (  -0.00,-136.99) (  -0.37,-135.33)  188.81                80
 03/26/2025   22:46:52   (   0.00,-137.00) (  -0.82,-140.63)  414.55                80
 03/27/2025   22:30:47   (   0.00,-137.00) (   0.20,-136.10)  102.16                80
 03/29/2025   10:52:32   (  -0.00,-136.98) (   1.00,-141.35)  498.83                80
 03/30/2025   10:31:06   (  -0.00,-136.98) (  -0.03,-136.82)   17.52                80
 04/01/2025   22:34:15   (  -0.00,-136.96) (  -0.15,-137.59)   71.09                80
 04/02/2025   22:18:10   (   0.00,-136.95) (   0.89,-133.06)  444.55                80
 04/04/2025   10:39:55   (  -0.00,-136.92) (   0.29,-138.32)  158.20                80
 04/05/2025   10:18:29   (   0.00,-136.91) (  -0.70,-133.77)  357.15                80