Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 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)
 07/22/2025   04:01:06   (   0.04, 140.77) (   0.16, 141.29)   59.54                80
 07/24/2025   16:04:09   (  -0.05, 140.80) (   0.03, 140.56)   27.85                80
 07/25/2025   15:42:45   (  -0.05, 140.79) (  -0.98, 145.09)  488.87                80
 07/27/2025   04:04:42   (   0.05, 140.75) (  -0.19, 139.78)  111.66                80
 07/28/2025   03:48:37   (   0.05, 140.74) (   0.82, 144.31)  405.95                80
 07/29/2025   16:10:26   (  -0.05, 140.75) (   0.32, 139.03)  195.21                80
 07/30/2025   15:49:01   (  -0.05, 140.73) (  -0.69, 143.56)  322.56                80
 08/01/2025   04:10:59   (   0.05, 140.69) (  -0.47, 138.25)  276.91                80
 08/02/2025   03:54:54   (   0.05, 140.67) (   0.55, 142.78)  241.36                80
 08/03/2025   16:16:41   (  -0.06, 140.66) (   0.66, 137.52)  358.77                80
 08/04/2025   15:55:17   (  -0.06, 140.64) (  -0.36, 142.05)  159.36                80