Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 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)
 03/16/2025   04:00:46   (  -0.01, 140.76) (   0.15, 141.42)   76.39                80
 03/18/2025   16:03:48   (   0.01, 140.76) (   0.00, 140.69)    7.97                80
 03/21/2025   04:04:19   (  -0.01, 140.78) (  -0.19, 139.92)   97.62                80
 03/22/2025   03:48:13   (  -0.01, 140.78) (   0.81, 144.45)  418.78                80
 03/23/2025   16:10:00   (   0.01, 140.77) (   0.37, 139.19)  180.09                80
 03/24/2025   15:48:34   (   0.01, 140.77) (  -0.63, 143.72)  336.49                80
 03/26/2025   04:10:30   (  -0.02, 140.78) (  -0.52, 138.41)  268.62                80
 03/27/2025   03:54:25   (  -0.01, 140.77) (   0.49, 142.95)  248.67                80
 03/28/2025   16:16:11   (   0.02, 140.75) (   0.68, 137.68)  348.59                80
 03/29/2025   15:54:46   (   0.01, 140.74) (  -0.34, 142.21)  168.90                80