Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 8 28.  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)
 08/28/2025   22:41:03   (   0.01,-137.00) (  -0.52,-139.25)  257.59                80
 08/29/2025   22:24:58   (   0.01,-137.00) (   0.52,-134.73)  258.47                80
 08/31/2025   10:46:47   (  -0.02,-136.98) (   0.63,-140.00)  343.86                80
 09/01/2025   10:25:21   (  -0.02,-136.97) (  -0.35,-135.46)  171.63                80
 09/02/2025   22:47:16   (   0.02,-136.96) (  -0.84,-140.76)  433.79                80
 09/03/2025   22:31:12   (   0.03,-136.95) (   0.21,-136.24)   81.41                80
 09/06/2025   10:34:14   (  -0.03,-136.91) (   0.01,-136.96)    7.61                80
 09/08/2025   22:34:44   (   0.03,-136.87) (  -0.19,-137.73)   98.54                80
 09/09/2025   22:18:39   (   0.03,-136.85) (   0.86,-133.20)  416.03                80
 09/11/2025   10:40:26   (  -0.03,-136.81) (   0.34,-138.47)  188.63                80