Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 8 14.  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)
 08/15/2025   15:49:00   (   0.01, 140.76) (  -0.61, 143.58)  321.47                80
 08/17/2025   04:10:56   (   0.01, 140.73) (  -0.56, 138.28)  280.58                80
 08/18/2025   03:54:52   (   0.01, 140.72) (   0.47, 142.80)  236.89                80
 08/19/2025   16:16:39   (  -0.00, 140.72) (   0.74, 137.54)  363.35                80
 08/20/2025   15:55:15   (   0.00, 140.71) (  -0.29, 142.07)  154.42                80
 08/22/2025   04:17:11   (  -0.00, 140.68) (  -0.86, 136.76)  445.81                80
 08/23/2025   04:01:06   (  -0.01, 140.66) (   0.11, 141.30)   72.94                80
 08/25/2025   16:04:09   (   0.01, 140.61) (   0.01, 140.55)    6.17                80
 08/28/2025   04:04:40   (  -0.01, 140.53) (  -0.17, 139.78)   85.24                80