Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 17.  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)
 09/18/2025   04:10:46   (   0.04, 140.73) (  -0.49, 138.32)  274.59                80
 09/19/2025   03:54:40   (   0.04, 140.72) (   0.51, 142.86)  243.74                80
 09/20/2025   16:16:27   (  -0.04, 140.75) (   0.67, 137.59)  360.78                80
 09/21/2025   15:55:02   (  -0.04, 140.74) (  -0.33, 142.13)  157.84                80
 09/23/2025   04:16:57   (   0.04, 140.65) (  -0.83, 136.82)  436.04                80
 09/24/2025   04:00:52   (   0.04, 140.62) (   0.18, 141.36)   83.40                80
 09/26/2025   16:01:14   (  -0.04, 140.62) (  -0.02, 140.63)    2.52                80
 09/29/2025   04:04:24   (   0.04, 140.50) (  -0.07, 139.85)   74.32                80
 09/30/2025   03:48:19   (   0.04, 140.47) (   0.94, 144.38)  445.61                80
 10/01/2025   16:10:05   (  -0.05, 140.48) (   0.28, 139.12)  155.78                80