Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 5.  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)   91.56                80
 04/07/2025   03:47:55   (  -0.04, 140.78) (   0.81, 144.52)  425.85                80
 04/08/2025   16:09:40   (   0.05, 140.78) (   0.38, 139.26)  173.56                80
 04/09/2025   15:48:14   (   0.05, 140.77) (  -0.60, 143.80)  344.29                80
 04/11/2025   04:10:08   (  -0.05, 140.75) (  -0.57, 138.50)  256.77                80
 04/12/2025   03:54:03   (  -0.05, 140.74) (   0.49, 143.03)  261.76                80
 04/13/2025   16:15:48   (   0.05, 140.72) (   0.69, 137.77)  335.99                80
 04/14/2025   15:54:22   (   0.05, 140.71) (  -0.31, 142.31)  182.61                80
 04/16/2025   04:16:15   (  -0.05, 140.68) (  -0.89, 137.02)  417.70                80
 04/17/2025   04:00:09   (  -0.05, 140.66) (   0.17, 141.54)  101.39                80
 04/18/2025   16:21:55   (   0.06, 140.64) (   1.01, 136.29)  495.52                80
 04/19/2025   16:00:28   (   0.06, 140.62) (  -0.00, 140.82)   23.68                80