Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 19.  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)
 07/21/2025   04:17:10   (   0.01, 140.76) (  -0.89, 136.77)  455.31                80
 07/22/2025   04:01:06   (   0.00, 140.77) (   0.12, 141.30)   60.35                80
 07/24/2025   16:04:09   (   0.01, 140.79) (   0.06, 140.57)   25.50                80
 07/25/2025   15:42:44   (   0.01, 140.79) (  -0.94, 145.10)  490.86                80
 07/27/2025   04:04:41   (  -0.01, 140.77) (  -0.23, 139.79)  112.31                80
 07/28/2025   03:48:37   (  -0.01, 140.77) (   0.79, 144.32)  404.84                80
 07/29/2025   16:10:24   (   0.02, 140.76) (   0.42, 139.05)  194.83                80
 07/30/2025   15:49:00   (   0.02, 140.75) (  -0.59, 143.58)  322.60                80
 08/01/2025   04:10:57   (  -0.02, 140.72) (  -0.56, 138.27)  279.38                80
 08/02/2025   03:54:53   (  -0.02, 140.71) (   0.45, 142.80)  238.51                80