Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 10.  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)
 03/11/2025   03:54:32   (  -0.04, 140.76) (   0.44, 142.95)  248.64                80
 03/12/2025   16:16:19   (   0.04, 140.74) (   0.72, 137.67)  349.31                80
 03/13/2025   15:54:54   (   0.04, 140.73) (  -0.32, 142.20)  168.12                80
 03/15/2025   04:16:51   (  -0.04, 140.72) (  -0.89, 136.90)  435.47                80
 03/16/2025   04:00:46   (  -0.04, 140.70) (   0.15, 141.42)   82.62                80
 03/18/2025   16:01:08   (   0.04, 140.65) (   0.01, 140.69)    4.79                80
 03/21/2025   04:04:19   (  -0.04, 140.62) (  -0.21, 139.92)   80.04                80
 03/22/2025   03:48:14   (  -0.05, 140.60) (   0.84, 144.44)  438.62                80
 03/23/2025   16:10:01   (   0.05, 140.56) (   0.36, 139.18)  156.75                80
 03/24/2025   15:48:35   (   0.05, 140.54) (  -0.63, 143.72)  362.06                80