Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 23.  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)
 01/24/2025   15:54:47   (   0.01, 140.77) (  -0.31, 142.30)  173.56                80
 01/26/2025   04:16:39   (  -0.01, 140.77) (  -0.83, 137.00)  429.40                80
 01/27/2025   04:00:32   (  -0.00, 140.77) (   0.19, 141.54)   88.25                80
 01/29/2025   16:00:47   (  -0.00, 140.77) (  -0.04, 140.83)    8.13                80
 02/01/2025   04:03:50   (   0.00, 140.75) (  -0.17, 140.10)   75.44                80
 02/02/2025   03:47:43   (   0.00, 140.74) (   0.86, 144.63)  443.48                80
 02/03/2025   16:09:26   (  -0.00, 140.72) (   0.29, 139.38)  152.94                80
 02/04/2025   15:47:58   (  -0.00, 140.71) (  -0.70, 143.93)  366.02                80
 02/06/2025   04:09:49   (   0.01, 140.70) (  -0.47, 138.64)  234.82                80