Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 30.  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)
 08/01/2025   04:10:57   (  -0.01, 140.72) (  -0.55, 138.27)  278.95                80
 08/02/2025   03:54:53   (   0.01, 140.71) (   0.47, 142.80)  238.33                80
 08/03/2025   16:16:41   (  -0.01, 140.70) (   0.67, 137.52)  361.32                80
 08/04/2025   15:55:15   (  -0.01, 140.69) (  -0.29, 142.07)  156.48                80
 08/06/2025   04:17:13   (   0.00, 140.66) (  -0.85, 136.75)  444.64                80
 08/07/2025   04:01:08   (  -0.00, 140.64) (   0.17, 141.28)   73.73                80
 08/09/2025   16:04:11   (   0.01, 140.60) (   0.01, 140.55)    6.13                80
 08/12/2025   04:04:43   (  -0.01, 140.54) (  -0.17, 139.77)   87.12                80
 08/13/2025   03:48:38   (  -0.01, 140.51) (   0.86, 144.30)  432.16                80