Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 3.  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) (  -0.22, 139.98)   91.52                80
 04/07/2025   03:47:55   (  -0.04, 140.78) (   0.82, 144.51)  425.97                80
 04/08/2025   16:09:41   (   0.05, 140.78) (   0.37, 139.25)  173.08                80
 04/09/2025   15:48:14   (   0.05, 140.77) (  -0.62, 143.80)  344.87                80
 04/11/2025   04:10:08   (  -0.05, 140.74) (  -0.55, 138.50)  256.20                80
 04/12/2025   03:54:02   (  -0.05, 140.73) (   0.45, 143.04)  262.42                80
 04/13/2025   16:15:48   (   0.05, 140.71) (   0.68, 137.77)  335.00                80
 04/14/2025   15:54:22   (   0.05, 140.70) (  -0.32, 142.31)  183.71                80
 04/16/2025   04:16:15   (  -0.05, 140.67) (  -0.88, 137.02)  416.59                80
 04/17/2025   04:00:09   (  -0.05, 140.65) (   0.12, 141.55)  102.58                80