Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 25.  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)
 05/26/2025   16:09:53   (   0.01, 140.78) (   0.39, 139.18)  182.06                80
 05/27/2025   15:48:30   (   0.00, 140.78) (  -0.64, 143.71)  333.55                80
 05/29/2025   04:10:27   (  -0.00, 140.77) (  -0.55, 138.40)  270.44                80
 05/30/2025   03:54:24   (   0.00, 140.77) (   0.48, 142.92)  245.70                80
 05/31/2025   16:16:13   (  -0.01, 140.77) (   0.70, 137.65)  356.09                80
 06/01/2025   15:54:50   (  -0.01, 140.76) (  -0.34, 142.17)  160.55                80
 06/03/2025   04:16:47   (   0.01, 140.74) (  -0.86, 136.86)  441.79                80
 06/04/2025   04:00:43   (   0.02, 140.72) (   0.17, 141.39)   75.71                80
 06/06/2025   16:03:48   (  -0.02, 140.69) (   0.01, 140.64)    6.37                80