Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 17.  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)
 07/18/2025   16:16:37   (   0.00, 140.75) (   0.71, 137.55)  364.53                80
 07/19/2025   15:55:13   (  -0.01, 140.74) (  -0.29, 142.08)  152.12                80
 07/21/2025   04:17:10   (   0.01, 140.73) (  -0.89, 136.77)  451.36                80
 07/22/2025   04:01:06   (   0.00, 140.72) (   0.12, 141.30)   66.07                80
 07/24/2025   16:04:09   (   0.00, 140.69) (   0.01, 140.55)   14.94                80
 07/27/2025   04:04:42   (  -0.01, 140.64) (  -0.18, 139.77)   98.38                80
 07/28/2025   03:48:38   (  -0.01, 140.62) (   0.84, 144.30)  420.52                80
 07/29/2025   16:10:25   (   0.01, 140.58) (   0.37, 139.04)  175.69                80
 07/30/2025   15:49:01   (   0.01, 140.55) (  -0.65, 143.57)  343.40                80