Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 5 23.  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)
 05/24/2025   22:40:32   (  -0.00,-137.00) (  -0.50,-139.13)  242.45                80
 05/25/2025   22:24:29   (  -0.00,-137.00) (   0.53,-134.60)  273.07                80
 05/27/2025   10:46:18   (  -0.00,-136.99) (   0.66,-139.88)  330.09                80
 05/28/2025   10:27:34   (  -0.01,-136.98) (  -0.37,-135.35)  184.80                80
 05/29/2025   22:46:52   (   0.02,-136.97) (  -0.83,-140.66)  421.53                80
 05/30/2025   22:30:48   (   0.02,-136.96) (   0.20,-136.14)   93.26                80
 06/02/2025   10:33:54   (  -0.02,-136.92) (  -0.06,-136.89)    5.29                80
 06/04/2025   22:34:27   (   0.03,-136.90) (  -0.16,-137.66)   87.38                80
 06/05/2025   22:18:23   (   0.03,-136.89) (   0.87,-133.14)  427.17                80