Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 12.  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)
 07/13/2025   16:10:21   (  -0.03, 140.77) (   0.38, 139.06)  195.02                80
 07/14/2025   15:48:56   (  -0.02, 140.77) (  -0.63, 143.60)  321.68                80
 07/16/2025   04:10:55   (   0.02, 140.76) (  -0.51, 138.28)  282.19                80
 07/17/2025   03:54:50   (   0.02, 140.75) (   0.50, 142.81)  235.08                80
 07/18/2025   16:16:37   (  -0.02, 140.73) (   0.70, 137.54)  363.65                80
 07/19/2025   15:55:13   (  -0.03, 140.72) (  -0.30, 142.07)  153.43                80
 07/21/2025   04:17:10   (   0.03, 140.71) (  -0.88, 136.77)  450.41                80
 07/22/2025   04:01:07   (   0.03, 140.70) (   0.18, 141.28)   67.17                80
 07/24/2025   16:04:10   (  -0.03, 140.66) (   0.01, 140.55)   12.70                80