Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 30.  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)
 03/31/2025   04:16:39   (  -0.03, 140.77) (  -0.88, 136.93)  437.35                80
 04/01/2025   04:00:33   (  -0.02, 140.77) (   0.16, 141.46)   79.10                80
 04/03/2025   16:03:33   (   0.03, 140.79) (   0.01, 140.74)    6.17                80
 04/06/2025   04:04:01   (  -0.04, 140.78) (  -0.23, 139.98)   91.24                80
 04/07/2025   03:47:55   (  -0.04, 140.78) (   0.81, 144.51)  426.35                80
 04/08/2025   16:09:41   (   0.04, 140.77) (   0.38, 139.26)  172.45                80
 04/09/2025   15:48:15   (   0.04, 140.76) (  -0.66, 143.78)  345.58                80
 04/11/2025   04:10:08   (  -0.04, 140.73) (  -0.57, 138.50)  255.33                80
 04/12/2025   03:54:03   (  -0.04, 140.72) (   0.48, 143.03)  263.36                80
 04/13/2025   16:15:48   (   0.04, 140.70) (   0.71, 137.77)  333.86                80