Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 9 21.  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)
 09/21/2025   15:55:02   (  -0.03, 140.75) (  -0.36, 142.12)  156.83                80
 09/23/2025   04:16:57   (   0.03, 140.70) (  -0.86, 136.83)  441.87                80
 09/24/2025   04:00:52   (   0.03, 140.67) (   0.21, 141.35)   78.33                80
 09/26/2025   16:01:14   (  -0.03, 140.60) (  -0.05, 140.62)    3.96                80
 09/29/2025   04:04:24   (   0.03, 140.51) (  -0.09, 139.85)   74.86                80
 09/30/2025   03:48:18   (   0.04, 140.48) (   0.92, 144.39)  445.81                80
 10/01/2025   16:10:06   (  -0.04, 140.42) (   0.22, 139.12)  148.30                80
 10/02/2025   15:48:40   (  -0.04, 140.38) (  -0.79, 143.65)  372.53                80
 10/04/2025   04:10:35   (   0.05, 140.32) (  -0.42, 138.36)  224.79                80
 10/05/2025   03:54:30   (   0.05, 140.28) (   0.66, 142.88)  296.84                80