Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 5 10.  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)
 05/11/2025   10:46:02   (   0.00,-136.99) (   0.65,-139.81)  321.30                80
 05/12/2025   10:24:39   (   0.00,-136.99) (  -0.37,-135.28)  193.97                80
 05/13/2025   22:46:36   (   0.00,-136.98) (  -0.83,-140.59)  412.04                80
 05/14/2025   22:30:33   (   0.00,-136.97) (   0.19,-136.06)  102.64                80
 05/17/2025   10:30:59   (  -0.02,-136.93) (  -0.05,-136.82)   12.51                80
 05/19/2025   22:34:13   (   0.02,-136.89) (  -0.12,-137.61)   81.02                80
 05/20/2025   22:18:09   (   0.02,-136.87) (   0.84,-133.07)  432.96                80
 05/22/2025   10:37:19   (  -0.02,-136.84) (   0.30,-138.35)  172.27                80
 05/23/2025   10:21:15   (  -0.02,-136.82) (  -0.67,-133.82)  341.29                80