Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 12 19.  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)
 12/20/2024   04:11:45   (  -0.01, 140.75) (  -0.60, 138.26)  285.27                80
 12/21/2024   03:55:40   (  -0.01, 140.75) (   0.44, 142.79)  232.20                80
 12/22/2024   16:17:26   (   0.01, 140.74) (   0.71, 137.52)  366.76                80
 12/23/2024   15:56:00   (   0.01, 140.73) (  -0.28, 142.06)  151.06                80
 12/25/2024   04:17:54   (  -0.01, 140.71) (  -0.87, 136.75)  450.88                80
 12/26/2024   04:01:47   (  -0.01, 140.70) (   0.12, 141.29)   67.39                80
 12/28/2024   16:04:47   (   0.01, 140.67) (   0.03, 140.56)   12.15                80
 12/31/2024   04:05:14   (   0.00, 140.63) (  -0.21, 139.80)   95.28                80
 01/01/2025   03:49:09   (   0.01, 140.62) (   0.86, 144.33)  423.45                80
 01/02/2025   16:10:54   (  -0.01, 140.59) (   0.34, 139.07)  173.39                80