Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 22.  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)
 04/23/2025   03:47:28   (  -0.02, 140.75) (   0.82, 144.62)  439.98                80
 04/24/2025   16:09:13   (   0.02, 140.74) (   0.35, 139.36)  158.73                80
 04/25/2025   15:47:47   (   0.02, 140.74) (  -0.67, 143.89)  359.51                80
 04/27/2025   04:09:40   (  -0.01, 140.71) (  -0.49, 138.60)  240.89                80
 04/28/2025   03:53:34   (  -0.01, 140.70) (   0.54, 143.13)  277.74                80
 04/29/2025   16:15:19   (   0.01, 140.68) (   0.63, 137.87)  320.03                80
 04/30/2025   15:53:52   (   0.01, 140.67) (  -0.40, 142.41)  198.59                80
 05/02/2025   04:15:45   (  -0.01, 140.64) (  -0.80, 137.12)  401.26                80
 05/03/2025   03:59:38   (  -0.01, 140.62) (   0.24, 141.66)  118.23                80
 05/04/2025   16:21:23   (   0.02, 140.59) (   0.98, 136.41)  477.54                80
 05/05/2025   15:59:56   (   0.02, 140.57) (  -0.06, 140.94)   42.35                80