Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 24.  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)
 04/25/2025   15:47:54   (   0.02, 140.73) (  -0.69, 143.86)  356.58                80
 04/27/2025   04:09:52   (  -0.02, 140.71) (  -0.48, 138.55)  246.10                80
 04/28/2025   03:53:49   (  -0.01, 140.69) (   0.51, 143.07)  271.05                80
 04/29/2025   16:15:39   (   0.01, 140.68) (   0.67, 137.79)  328.97                80
 04/30/2025   15:54:16   (   0.02, 140.66) (  -0.33, 142.32)  188.25                80
 05/02/2025   04:16:14   (  -0.02, 140.64) (  -0.83, 137.01)  413.80                80
 05/03/2025   04:00:11   (  -0.03, 140.62) (   0.17, 141.53)  104.20                80
 05/04/2025   16:22:01   (   0.04, 140.58) (   1.01, 136.25)  493.86                80
 05/05/2025   16:00:37   (   0.04, 140.56) (  -0.00, 140.78)   24.58                80
 05/08/2025   04:03:52   (  -0.04, 140.49) (  -0.13, 139.98)   56.70                80