Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 8 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)
 08/18/2025   03:54:52   (   0.01, 140.76) (   0.45, 142.81)  233.00                80
 08/19/2025   16:16:40   (  -0.01, 140.77) (   0.70, 137.53)  368.53                80
 08/20/2025   15:55:14   (  -0.00, 140.77) (  -0.27, 142.07)  147.90                80
 08/22/2025   04:17:11   (   0.00, 140.76) (  -0.89, 136.77)  455.42                80
 08/23/2025   04:01:06   (  -0.00, 140.76) (   0.15, 141.29)   61.92                80
 08/25/2025   16:04:09   (   0.00, 140.73) (   0.03, 140.56)   19.74                80
 08/26/2025   15:42:45   (   0.00, 140.72) (  -1.00, 145.09)  498.06                80
 08/28/2025   04:04:40   (  -0.00, 140.70) (  -0.20, 139.79)  103.37                80
 08/29/2025   03:48:35   (  -0.00, 140.68) (   0.84, 144.31)  414.95                80
 08/30/2025   16:10:23   (   0.01, 140.66) (   0.38, 139.05)  182.96                80
 08/31/2025   15:48:58   (   0.01, 140.64) (  -0.66, 143.58)  335.37                80