Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 17.  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)
 03/18/2025   16:03:48   (   0.01, 140.76) (  -0.00, 140.69)    8.43                80
 03/21/2025   04:04:19   (  -0.01, 140.78) (  -0.18, 139.92)   97.45                80
 03/22/2025   03:48:13   (  -0.01, 140.78) (   0.82, 144.45)  418.98                80
 03/23/2025   16:10:00   (   0.02, 140.77) (   0.35, 139.19)  180.33                80
 03/24/2025   15:48:34   (   0.02, 140.77) (  -0.65, 143.72)  336.26                80
 03/26/2025   04:10:29   (  -0.02, 140.78) (  -0.55, 138.42)  268.39                80
 03/27/2025   03:54:24   (  -0.02, 140.77) (   0.47, 142.96)  248.89                80
 03/28/2025   16:16:10   (   0.02, 140.75) (   0.69, 137.69)  348.74                80
 03/29/2025   15:54:45   (   0.02, 140.74) (  -0.33, 142.22)  168.74                80
 03/31/2025   04:16:39   (  -0.02, 140.74) (  -0.90, 136.93)  434.92                80