Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 18.  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)
 03/19/2025   10:40:11   (   0.00,-137.00) (   0.30,-138.37)  155.61                80
 03/20/2025   10:18:46   (   0.00,-136.99) (  -0.70,-133.83)  360.56                80
 03/21/2025   22:40:42   (  -0.00,-136.99) (  -0.47,-139.14)  243.94                80
 03/22/2025   22:24:36   (  -0.00,-136.99) (   0.53,-134.60)  271.82                80
 03/24/2025   10:46:23   (  -0.00,-136.96) (   0.64,-139.87)  330.77                80
 03/25/2025   10:24:57   (  -0.00,-136.95) (  -0.37,-135.33)  184.63                80
 03/26/2025   22:46:52   (   0.00,-136.94) (  -0.82,-140.63)  420.84                80
 03/27/2025   22:30:47   (   0.00,-136.93) (   0.20,-136.10)   94.47                80
 03/30/2025   10:31:07   (  -0.00,-136.88) (  -0.00,-136.82)    6.27                80