Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 29.  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)
 04/30/2025   10:49:24   (   0.00,-137.00) (   0.96,-141.26)  485.69                80
 05/01/2025   10:33:20   (   0.00,-137.00) (  -0.04,-136.74)   29.91                80
 05/03/2025   22:33:55   (   0.00,-136.99) (  -0.11,-137.53)   60.49                80
 05/04/2025   22:17:52   (   0.00,-136.99) (   0.90,-133.00)  454.94                80
 05/06/2025   10:39:42   (  -0.00,-136.99) (   0.28,-138.28)  147.39                80
 05/07/2025   10:18:19   (  -0.00,-136.98) (  -0.74,-133.76)  367.99                80
 05/08/2025   22:40:16   (   0.00,-136.97) (  -0.46,-139.06)  237.97                80
 05/09/2025   22:24:12   (   0.00,-136.97) (   0.56,-134.54)  277.11                80
 05/11/2025   10:46:03   (  -0.01,-136.95) (   0.61,-139.82)  326.20                80
 05/12/2025   10:27:18   (  -0.01,-136.94) (  -0.36,-135.28)  188.35                80