Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 27.  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)
 03/28/2025   16:16:09   (   0.02, 140.75) (   0.73, 137.70)  347.91                80
 03/29/2025   15:54:43   (   0.02, 140.74) (  -0.30, 142.23)  169.72                80
 03/31/2025   04:16:39   (  -0.02, 140.73) (  -0.87, 136.93)  432.87                80
 04/01/2025   04:00:33   (  -0.02, 140.72) (   0.17, 141.46)   85.20                80
 04/03/2025   16:00:53   (   0.02, 140.68) (  -0.01, 140.73)    6.49                80
 04/06/2025   04:04:01   (  -0.02, 140.65) (  -0.19, 139.98)   76.82                80
 04/07/2025   03:47:55   (  -0.03, 140.63) (   0.87, 144.50)  442.44                80
 04/08/2025   16:09:41   (   0.03, 140.59) (   0.32, 139.24)  152.61                80
 04/09/2025   15:48:14   (   0.03, 140.56) (  -0.68, 143.79)  367.09                80