Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 11.  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)
 07/12/2025   03:48:33   (   0.01, 140.77) (   0.79, 144.34)  405.50                80
 07/13/2025   16:10:21   (  -0.00, 140.77) (   0.35, 139.06)  194.30                80
 07/14/2025   15:48:57   (  -0.00, 140.77) (  -0.65, 143.59)  322.32                80
 07/16/2025   04:10:54   (  -0.00, 140.76) (  -0.54, 138.28)  282.13                80
 07/17/2025   03:54:50   (  -0.00, 140.75) (   0.46, 142.81)  235.05                80
 07/18/2025   16:16:37   (   0.01, 140.73) (   0.74, 137.55)  363.40                80
 07/19/2025   15:55:12   (   0.01, 140.73) (  -0.27, 142.08)  153.67                80
 07/21/2025   04:17:10   (  -0.01, 140.72) (  -0.92, 136.77)  450.62                80
 07/22/2025   04:01:05   (  -0.02, 140.71) (   0.09, 141.30)   66.98                80
 07/24/2025   16:04:09   (   0.02, 140.67) (   0.05, 140.56)   12.54                80