Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 9.  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)
 10/10/2025   04:00:35   (   0.01, 140.62) (   0.17, 141.44)   93.85                80
 10/12/2025   16:00:55   (  -0.01, 140.59) (  -0.01, 140.72)   13.94                80
 10/15/2025   04:04:04   (   0.01, 140.43) (  -0.08, 139.94)   54.72                80
 10/16/2025   03:47:58   (   0.01, 140.38) (   0.91, 144.49)  467.48                80
 10/17/2025   16:09:44   (  -0.01, 140.37) (   0.22, 139.22)  130.88                80
 10/18/2025   15:48:18   (  -0.01, 140.32) (  -0.77, 143.76)  391.48                80
 10/20/2025   04:10:13   (   0.01, 140.18) (  -0.36, 138.45)  196.76                80
 10/21/2025   03:54:07   (   0.01, 140.13) (   0.64, 143.00)  326.59                80
 10/22/2025   16:15:52   (  -0.01, 140.10) (   0.54, 137.74)  269.40                80
 10/23/2025   15:54:26   (  -0.00, 140.05) (  -0.52, 142.27)  253.58                80