Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 15.  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)
 04/16/2025   04:16:16   (  -0.01, 140.77) (  -0.84, 137.01)  428.68                80
 04/17/2025   04:00:09   (  -0.01, 140.77) (   0.17, 141.55)   88.41                80
 04/19/2025   16:00:28   (   0.02, 140.78) (  -0.00, 140.83)    5.86                80
 04/22/2025   04:03:35   (  -0.03, 140.77) (  -0.16, 140.07)   78.79                80
 04/23/2025   03:47:29   (  -0.03, 140.76) (   0.85, 144.61)  439.26                80
 04/24/2025   16:09:14   (   0.03, 140.75) (   0.32, 139.35)  159.05                80
 04/25/2025   15:47:47   (   0.03, 140.74) (  -0.70, 143.89)  359.12                80
 04/27/2025   04:09:40   (  -0.03, 140.72) (  -0.51, 138.60)  241.94                80
 04/28/2025   03:53:33   (  -0.03, 140.71) (   0.52, 143.14)  276.63                80
 04/29/2025   16:15:18   (   0.03, 140.69) (   0.65, 137.88)  320.67                80