Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 29.  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)
 03/31/2025   04:16:39   (  -0.02, 140.77) (  -0.88, 136.93)  437.31                80
 04/01/2025   04:00:33   (  -0.02, 140.77) (   0.15, 141.46)   79.13                80
 04/03/2025   16:03:33   (   0.02, 140.79) (   0.01, 140.73)    6.15                80
 04/06/2025   04:04:01   (  -0.03, 140.78) (  -0.22, 139.98)   91.17                80
 04/07/2025   03:47:55   (  -0.03, 140.77) (   0.83, 144.51)  426.44                80
 04/08/2025   16:09:41   (   0.04, 140.77) (   0.36, 139.25)  172.38                80
 04/09/2025   15:48:14   (   0.04, 140.76) (  -0.63, 143.79)  345.67                80
 04/11/2025   04:10:08   (  -0.04, 140.73) (  -0.53, 138.49)  255.11                80
 04/12/2025   03:54:02   (  -0.04, 140.72) (   0.47, 143.03)  263.61                80