Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 13.  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)
 10/15/2025   04:04:03   (   0.02, 140.76) (  -0.14, 139.96)   90.62                80
 10/16/2025   03:47:57   (   0.02, 140.76) (   0.84, 144.50)  426.72                80
 10/17/2025   16:09:42   (  -0.03, 140.74) (   0.34, 139.25)  171.03                80
 10/18/2025   15:48:17   (  -0.02, 140.73) (  -0.71, 143.78)  346.88                80
 10/20/2025   04:10:11   (   0.02, 140.73) (  -0.47, 138.48)  255.88                80
 10/21/2025   03:54:04   (   0.02, 140.72) (   0.52, 143.03)  262.59                80
 10/22/2025   16:15:50   (  -0.03, 140.69) (   0.64, 137.77)  333.55                80
 10/23/2025   15:54:24   (  -0.03, 140.68) (  -0.41, 142.29)  184.93                80
 10/25/2025   04:16:19   (   0.03, 140.67) (  -0.77, 137.00)  417.49                80
 10/26/2025   04:00:12   (   0.04, 140.65) (   0.23, 141.54)  101.33                80
 10/27/2025   16:21:57   (  -0.04, 140.61) (   0.92, 136.28)  493.72                80