Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 22.  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)
 01/23/2025   16:16:15   (   0.01, 140.77) (   0.69, 137.75)  343.71                80
 01/24/2025   15:54:47   (   0.01, 140.77) (  -0.33, 142.30)  173.53                80
 01/26/2025   04:16:38   (  -0.01, 140.77) (  -0.87, 137.01)  429.43                80
 01/27/2025   04:00:31   (  -0.00, 140.77) (   0.15, 141.55)   88.24                80
 01/29/2025   16:00:47   (  -0.00, 140.77) (   0.01, 140.84)    8.21                80
 02/01/2025   04:03:51   (   0.00, 140.75) (  -0.16, 140.09)   75.45                80
 02/02/2025   03:47:43   (   0.00, 140.74) (   0.87, 144.63)  443.41                80
 02/03/2025   16:09:26   (  -0.00, 140.72) (   0.28, 139.37)  153.05                80
 02/04/2025   15:47:58   (  -0.00, 140.71) (  -0.70, 143.92)  365.91                80