Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 12 25.  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)
 12/25/2024   04:17:53   (  -0.01, 140.76) (  -0.93, 136.77)  456.21                80
 12/26/2024   04:01:47   (  -0.02, 140.76) (   0.13, 141.29)   60.98                80
 12/28/2024   16:04:46   (   0.02, 140.76) (   0.07, 140.57)   21.48                80
 12/29/2024   15:43:20   (   0.02, 140.76) (  -0.94, 145.11)  495.64                80
 12/31/2024   04:05:13   (  -0.02, 140.76) (  -0.24, 139.82)  107.67                80
 01/01/2025   03:49:07   (  -0.01, 140.75) (   0.77, 144.35)  409.82                80
 01/02/2025   16:10:53   (   0.01, 140.74) (   0.36, 139.08)  188.61                80
 01/03/2025   15:49:26   (   0.00, 140.73) (  -0.66, 143.61)  329.13                80
 01/05/2025   04:13:59   (   0.00, 140.72) (  -0.56, 138.33)  273.01                80
 01/06/2025   03:55:12   (   0.01, 140.71) (   0.47, 142.87)  245.47                80
 01/07/2025   16:16:58   (  -0.00, 140.68) (   0.71, 137.60)  351.12                80