Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 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)
 07/14/2025   15:48:57   (  -0.03, 140.77) (  -0.69, 143.58)  321.26                80
 07/16/2025   04:10:55   (   0.03, 140.74) (  -0.51, 138.28)  280.60                80
 07/17/2025   03:54:50   (   0.04, 140.72) (   0.50, 142.81)  237.68                80
 07/18/2025   16:16:38   (  -0.04, 140.69) (   0.70, 137.54)  360.05                80
 07/19/2025   15:55:14   (  -0.04, 140.68) (  -0.37, 142.06)  158.05                80
 07/21/2025   04:17:11   (   0.05, 140.65) (  -0.82, 136.75)  443.79                80
 07/22/2025   04:01:07   (   0.05, 140.63) (   0.19, 141.28)   74.73                80
 07/24/2025   16:04:11   (  -0.06, 140.56) (  -0.06, 140.54)    3.15                80
 07/27/2025   04:04:44   (   0.06, 140.49) (  -0.10, 139.76)   83.63                80