Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 5.  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)
 05/08/2025   04:03:51   (  -0.03, 140.76) (  -0.21, 140.01)   85.86                80
 05/09/2025   03:47:47   (  -0.03, 140.74) (   0.81, 144.53)  431.31                80
 05/10/2025   16:09:38   (   0.02, 140.72) (   0.36, 139.25)  167.95                80
 05/11/2025   15:48:14   (   0.02, 140.71) (  -0.66, 143.77)  349.26                80
 05/13/2025   04:10:11   (  -0.01, 140.69) (  -0.53, 138.47)  254.26                80
 05/14/2025   03:54:08   (  -0.01, 140.68) (   0.49, 142.99)  263.38                80
 05/15/2025   16:15:58   (   0.00, 140.64) (   0.67, 137.71)  334.99                80
 05/16/2025   15:54:35   (   0.01, 140.63) (  -0.35, 142.23)  182.82                80
 05/18/2025   04:16:32   (  -0.00, 140.61) (  -0.83, 136.92)  419.99                80
 05/19/2025   04:00:29   (  -0.01, 140.59) (   0.20, 141.45)   98.42                80