Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 21.  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)
 05/24/2025   04:04:08   (   0.00, 140.75) (  -0.18, 139.92)   94.33                80
 05/25/2025   03:48:05   (   0.00, 140.75) (   0.85, 144.45)  422.26                80
 05/26/2025   16:09:54   (  -0.00, 140.73) (   0.34, 139.17)  177.39                80
 05/27/2025   15:48:31   (  -0.00, 140.72) (  -0.69, 143.70)  339.27                80
 05/29/2025   04:10:28   (  -0.00, 140.72) (  -0.50, 138.39)  265.07                80
 05/30/2025   03:54:23   (  -0.01, 140.71) (   0.47, 142.93)  252.26                80
 05/31/2025   16:16:13   (   0.01, 140.68) (   0.71, 137.65)  345.67                80
 06/01/2025   15:54:49   (   0.01, 140.66) (  -0.33, 142.17)  172.11                80
 06/03/2025   04:16:47   (  -0.01, 140.64) (  -0.86, 136.86)  430.64                80
 06/04/2025   04:00:43   (  -0.01, 140.62) (   0.18, 141.39)   87.95                80