Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 8 18.  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)
 08/19/2025   16:16:39   (  -0.01, 140.77) (   0.74, 137.54)  368.64                80
 08/20/2025   15:55:15   (  -0.01, 140.77) (  -0.29, 142.07)  147.73                80
 08/22/2025   04:17:11   (   0.00, 140.76) (  -0.87, 136.76)  455.54                80
 08/23/2025   04:01:06   (   0.00, 140.76) (   0.10, 141.30)   61.74                80
 08/25/2025   16:04:09   (  -0.00, 140.74) (   0.02, 140.56)   20.21                80
 08/26/2025   15:42:44   (  -0.00, 140.72) (  -0.96, 145.10)  497.66                80
 08/28/2025   04:04:40   (  -0.00, 140.70) (  -0.19, 139.79)  103.74                80
 08/29/2025   03:48:35   (  -0.00, 140.68) (   0.79, 144.33)  414.55                80
 08/30/2025   16:10:23   (   0.01, 140.66) (   0.37, 139.05)  183.53                80
 08/31/2025   15:48:59   (   0.01, 140.65) (  -0.67, 143.58)  334.77                80