Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 8.  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)
 09/10/2025   16:04:03   (  -0.03, 140.74) (   0.01, 140.58)   18.35                80
 09/11/2025   15:42:38   (  -0.03, 140.74) (  -0.98, 145.12)  499.27                80
 09/13/2025   04:04:33   (   0.03, 140.72) (  -0.18, 139.82)  102.97                80
 09/14/2025   03:48:28   (   0.03, 140.71) (   0.82, 144.36)  414.87                80
 09/15/2025   16:10:16   (  -0.04, 140.69) (   0.31, 139.08)  183.73                80
 09/16/2025   15:48:51   (  -0.04, 140.68) (  -0.69, 143.61)  334.39                80
 09/18/2025   04:10:46   (   0.05, 140.65) (  -0.46, 138.31)  266.84                80
 09/19/2025   03:54:41   (   0.05, 140.63) (   0.54, 142.85)  252.20                80
 09/20/2025   16:16:28   (  -0.05, 140.59) (   0.63, 137.58)  343.99                80
 09/21/2025   15:55:02   (  -0.05, 140.57) (  -0.37, 142.11)  175.58                80