Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 30.  Predictions up to the next  14.0 days:

     Date     Time(HIMAWARI-9)   HIMAWARI-9 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 10/01/2025   16:10:03   (  -0.02, 140.80) (   0.34, 139.15)  187.74                80
 10/02/2025   15:48:38   (  -0.02, 140.82) (  -0.69, 143.68)  326.85                80
 10/04/2025   04:10:32   (   0.02, 140.84) (  -0.51, 138.39)  279.58                80
 10/05/2025   03:54:25   (   0.02, 140.86) (   0.46, 142.93)  235.79                80
 10/06/2025   16:16:12   (  -0.02, 140.88) (   0.70, 137.67)  366.26                80
 10/07/2025   15:54:46   (  -0.02, 140.90) (  -0.34, 142.20)  149.25                80
 10/09/2025   04:16:40   (   0.02, 140.92) (  -0.85, 136.91)  456.64                80
 10/10/2025   04:00:34   (   0.02, 140.93) (   0.13, 141.45)   59.12                80
 10/12/2025   16:03:34   (  -0.03, 140.96) (   0.02, 140.72)   26.40                80
 10/13/2025   15:42:07   (  -0.03, 140.97) (  -0.97, 145.27)  489.51                80