Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 19.  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)
 01/21/2025   04:10:38   (   0.02, 140.77) (  -0.51, 138.47)  262.72                80
 01/22/2025   03:54:31   (   0.02, 140.77) (   0.50, 143.01)  254.62                80
 01/23/2025   16:16:14   (   0.02, 140.77) (   0.71, 137.76)  343.61                80
 01/24/2025   15:54:47   (   0.01, 140.77) (  -0.30, 142.30)  173.65                80
 01/26/2025   04:16:39   (  -0.01, 140.78) (  -0.84, 137.00)  429.73                80
 01/27/2025   04:00:32   (  -0.00, 140.78) (   0.18, 141.55)   87.87                80
 01/29/2025   16:00:47   (   0.00, 140.77) (  -0.02, 140.83)    7.73                80
 02/01/2025   04:03:51   (  -0.00, 140.76) (  -0.14, 140.09)   75.93                80
 02/02/2025   03:47:44   (  -0.00, 140.75) (   0.89, 144.63)  442.88                80