Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 7 6.  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)
 07/06/2025   22:34:45   (  -0.01,-137.00) (  -0.17,-137.73)   83.68                80
 07/07/2025   22:18:40   (  -0.01,-136.99) (   0.83,-133.20)  431.76                80
 07/09/2025   10:40:27   (   0.01,-136.97) (   0.37,-138.46)  170.83                80
 07/10/2025   10:19:04   (   0.01,-136.96) (  -0.69,-133.95)  344.09                80
 07/11/2025   22:41:01   (  -0.01,-136.94) (  -0.51,-139.25)  263.00                80
 07/12/2025   22:24:57   (  -0.01,-136.93) (   0.49,-134.72)  251.61                80
 07/14/2025   10:46:44   (   0.00,-136.90) (   0.71,-139.98)  351.90                80
 07/15/2025   10:25:20   (  -0.00,-136.88) (  -0.29,-135.45)  162.42                80
 07/16/2025   22:47:17   (   0.00,-136.86) (  -0.90,-140.76)  445.56                80
 07/17/2025   22:31:12   (   0.00,-136.83) (   0.11,-136.23)   68.50                80
 07/20/2025   10:34:16   (   0.00,-136.77) (   0.03,-136.97)   22.99                80