Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 5 7.  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   (  -0.00, 140.76) (  -0.17, 140.00)   86.51                80
 05/09/2025   03:47:48   (   0.00, 140.74) (   0.84, 144.52)  431.50                80
 05/10/2025   16:09:38   (  -0.00, 140.70) (   0.32, 139.24)  166.77                80
 05/11/2025   15:48:15   (  -0.00, 140.68) (  -0.69, 143.77)  351.29                80
 05/13/2025   04:10:12   (   0.00, 140.65) (  -0.50, 138.46)  250.16                80
 05/14/2025   03:54:09   (   0.00, 140.63) (   0.51, 142.98)  268.32                80
 05/15/2025   16:15:59   (  -0.00, 140.59) (   0.64, 137.70)  329.00                80
 05/16/2025   15:54:35   (  -0.00, 140.56) (  -0.38, 142.23)  189.43                80
 05/18/2025   04:16:33   (   0.00, 140.53) (  -0.81, 136.92)  411.63                80
 05/19/2025   04:00:29   (  -0.00, 140.50) (   0.21, 141.44)  107.57                80
 05/20/2025   16:22:19   (   0.01, 140.44) (   1.00, 136.17)  487.82                80
 05/21/2025   16:00:55   (   0.01, 140.41) (  -0.03, 140.69)   31.66                80