Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 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)
 10/20/2025   04:10:11   (   0.03, 140.75) (  -0.48, 138.49)  258.16                80
 10/21/2025   03:54:04   (   0.03, 140.74) (   0.51, 143.03)  259.78                80
 10/22/2025   16:15:49   (  -0.02, 140.72) (   0.65, 137.77)  336.86                80
 10/23/2025   15:54:23   (  -0.02, 140.71) (  -0.35, 142.31)  181.36                80
 10/25/2025   04:18:57   (   0.01, 140.71) (  -0.83, 137.02)  421.41                80
 10/26/2025   03:57:31   (   0.01, 140.70) (   0.18, 141.56)   96.99                80
 10/27/2025   16:21:56   (  -0.00, 140.67) (   0.96, 136.29)  498.65                80
 10/28/2025   16:00:30   (  -0.01, 140.66) (  -0.05, 140.83)   19.84                80
 10/31/2025   04:06:17   (   0.01, 140.63) (  -0.11, 140.08)   63.12                80
 11/01/2025   03:44:51   (   0.01, 140.61) (   0.90, 144.62)  456.20                80
 11/02/2025   16:09:15   (  -0.01, 140.57) (   0.28, 139.36)  137.55                80