Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 4.  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)
 04/06/2025   04:04:01   (  -0.04, 140.79) (  -0.24, 139.99)   91.60                80
 04/07/2025   03:47:55   (  -0.04, 140.78) (   0.81, 144.52)  425.86                80
 04/08/2025   16:09:40   (   0.05, 140.78) (   0.39, 139.26)  173.33                80
 04/09/2025   15:48:14   (   0.05, 140.77) (  -0.60, 143.80)  344.58                80
 04/11/2025   04:10:08   (  -0.05, 140.75) (  -0.57, 138.50)  256.52                80
 04/12/2025   03:54:03   (  -0.05, 140.73) (   0.49, 143.03)  262.07                80
 04/13/2025   16:15:48   (   0.05, 140.71) (   0.70, 137.77)  335.49                80
 04/14/2025   15:54:22   (   0.05, 140.70) (  -0.30, 142.31)  183.17                80
 04/16/2025   04:16:15   (  -0.05, 140.67) (  -0.90, 137.02)  417.16                80
 04/17/2025   04:00:09   (  -0.05, 140.66) (   0.17, 141.55)  101.97                80
 04/18/2025   16:21:55   (   0.06, 140.63) (   1.01, 136.29)  494.73                80