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   16:16:14   (   0.01, 140.77) (   0.71, 137.76)  343.73                80
 01/24/2025   15:54:47   (   0.01, 140.77) (  -0.30, 142.30)  173.55                80
 01/26/2025   04:16:39   (  -0.00, 140.77) (  -0.84, 137.00)  429.44                80
 01/27/2025   04:00:32   (  -0.00, 140.77) (   0.18, 141.55)   88.18                80
 01/29/2025   16:00:47   (  -0.00, 140.77) (  -0.03, 140.83)    7.84                80
 02/01/2025   04:03:51   (   0.00, 140.75) (  -0.13, 140.09)   75.48                80
 02/02/2025   03:47:43   (   0.00, 140.74) (   0.85, 144.64)  443.40                80
 02/03/2025   16:09:26   (  -0.00, 140.72) (   0.30, 139.38)  153.03                80
 02/04/2025   15:47:59   (  -0.00, 140.71) (  -0.74, 143.92)  365.92                80