Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 24.  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)
 11/26/2025   04:16:40   (  -0.02, 140.77) (  -0.86, 136.97)  433.11                80
 11/27/2025   04:00:38   (  -0.01, 140.77) (   0.17, 141.49)   83.18                80
 11/29/2025   16:03:45   (   0.01, 140.73) (   0.03, 140.75)    2.55                80
 12/02/2025   04:07:01   (  -0.02, 140.72) (  -0.20, 139.96)   87.00                80
 12/03/2025   03:47:41   (  -0.02, 140.71) (   0.84, 144.48)  430.05                42
 12/04/2025   16:10:09   (   0.03, 140.68) (   0.33, 139.20)  167.80                80
 12/05/2025   15:48:46   (   0.02, 140.66) (  -0.65, 143.73)  349.13                80
 12/07/2025   04:13:25   (  -0.03, 140.66) (  -0.53, 138.42)  255.38                80
 12/08/2025   03:52:03   (  -0.02, 140.64) (   0.51, 142.93)  262.19                80