Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 8 6.  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)
 08/07/2025   04:01:07   (  -0.01, 140.78) (   0.09, 141.30)   59.23                80
 08/09/2025   16:04:11   (   0.01, 140.78) (   0.03, 140.55)   25.91                80
 08/10/2025   15:42:46   (   0.00, 140.78) (  -0.99, 145.08)  490.62                80
 08/12/2025   04:04:42   (  -0.00, 140.78) (  -0.20, 139.78)  113.02                80
 08/13/2025   03:48:37   (  -0.00, 140.77) (   0.77, 144.32)  404.09                80
 08/14/2025   16:10:25   (   0.00, 140.76) (   0.38, 139.04)  195.56                80
 08/15/2025   15:49:01   (   0.01, 140.76) (  -0.64, 143.57)  321.45                80
 08/17/2025   04:10:56   (  -0.01, 140.75) (  -0.58, 138.28)  281.78                80
 08/18/2025   03:54:52   (  -0.01, 140.74) (   0.45, 142.81)  235.64                80
 08/19/2025   16:16:40   (   0.01, 140.72) (   0.71, 137.53)  363.11                80
 08/20/2025   15:55:15   (   0.01, 140.71) (  -0.31, 142.06)  154.52                80