Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 2 16.  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)
 02/17/2025   22:40:41   (   0.00,-136.98) (  -0.48,-139.09)  240.81                80
 02/18/2025   22:24:37   (   0.01,-136.97) (   0.56,-134.57)  274.19                80
 02/20/2025   10:46:25   (  -0.01,-136.95) (   0.62,-139.84)  329.76                80
 02/21/2025   10:25:01   (  -0.01,-136.93) (  -0.37,-135.31)  184.62                80
 02/22/2025   22:46:58   (   0.02,-136.91) (  -0.83,-140.62)  422.76                80
 02/23/2025   22:30:55   (   0.02,-136.89) (   0.22,-136.10)   91.25                80
 02/26/2025   10:31:18   (  -0.02,-136.83) (  -0.01,-136.83)    1.85                80
 02/28/2025   22:34:30   (   0.02,-136.78) (  -0.18,-137.61)   94.88                80
 03/01/2025   22:18:26   (   0.02,-136.76) (   0.82,-133.08)  418.60                80