Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 20.  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)
 05/21/2025   16:03:34   (   0.00, 140.76) (   0.04, 140.71)    6.74                80
 05/24/2025   04:04:08   (   0.00, 140.75) (  -0.21, 139.93)   94.37                80
 05/25/2025   03:48:04   (   0.00, 140.75) (   0.82, 144.45)  422.25                80
 05/26/2025   16:09:54   (  -0.00, 140.73) (   0.37, 139.18)  177.47                80
 05/27/2025   15:48:30   (  -0.00, 140.73) (  -0.66, 143.70)  339.18                80
 05/29/2025   04:10:27   (  -0.00, 140.72) (  -0.53, 138.39)  265.14                80
 05/30/2025   03:54:24   (  -0.01, 140.71) (   0.50, 142.92)  252.18                80
 05/31/2025   16:16:13   (   0.01, 140.68) (   0.67, 137.64)  345.77                80
 06/01/2025   15:54:49   (   0.01, 140.66) (  -0.31, 142.18)  172.01                80
 06/03/2025   04:16:46   (  -0.01, 140.64) (  -0.88, 136.87)  430.77                80