Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 1 18.  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)
 01/19/2024   04:08:57   (   0.00, 140.75) (  -0.55, 138.38)  269.94                80
 01/20/2024   03:52:52   (  -0.01, 140.74) (   0.46, 142.92)  248.14                80
 01/21/2024   16:14:39   (   0.01, 140.72) (   0.67, 137.64)  349.73                80
 01/22/2024   15:53:14   (   0.01, 140.71) (  -0.35, 142.18)  168.26                80
 01/24/2024   04:15:08   (  -0.00, 140.69) (  -0.88, 136.89)  433.72                80
 01/25/2024   03:59:02   (   0.00, 140.68) (   0.14, 141.43)   84.96                80
 01/27/2024   15:59:23   (  -0.01, 140.62) (   0.00, 140.70)    8.44                80
 01/30/2024   04:02:33   (   0.01, 140.57) (  -0.12, 139.93)   72.44                80
 01/31/2024   03:46:28   (   0.01, 140.54) (   0.91, 144.46)  447.60                80
 02/01/2024   16:08:13   (  -0.01, 140.49) (   0.30, 139.21)  146.63                80