Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 3.  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)
 04/04/2025   10:37:16   (  -0.00,-136.99) (   0.29,-138.32)  150.95                80
 04/05/2025   10:21:10   (   0.00,-136.99) (  -0.74,-133.79)  365.31                80
 04/06/2025   22:43:04   (  -0.00,-136.98) (  -0.45,-139.08)  239.50                80
 04/07/2025   22:21:38   (  -0.00,-136.97) (   0.54,-134.54)  276.79                80
 04/09/2025   10:43:23   (   0.00,-136.96) (   0.65,-139.80)  323.99                80
 04/10/2025   10:24:38   (   0.00,-136.95) (  -0.40,-135.27)  192.19                80
 04/11/2025   22:49:11   (  -0.00,-136.94) (  -0.83,-140.56)  412.85                80
 04/12/2025   22:27:45   (  -0.00,-136.93) (   0.17,-136.02)  103.08                80
 04/14/2025   10:49:31   (   0.00,-136.91) (   0.96,-141.29)  498.72                80
 04/15/2025   10:30:44   (   0.01,-136.89) (  -0.05,-136.75)   16.80                80