Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 31.  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)
 08/01/2025   04:10:57   (  -0.02, 140.73) (  -0.56, 138.27)  279.33                80
 08/02/2025   03:54:52   (   0.00, 140.71) (   0.46, 142.80)  238.02                80
 08/03/2025   16:16:41   (  -0.01, 140.70) (   0.68, 137.53)  361.16                80
 08/04/2025   15:55:16   (  -0.01, 140.69) (  -0.33, 142.06)  156.69                80
 08/06/2025   04:17:12   (   0.00, 140.66) (  -0.87, 136.76)  444.77                80
 08/07/2025   04:01:08   (  -0.00, 140.64) (   0.15, 141.28)   73.61                80
 08/09/2025   16:04:11   (   0.01, 140.59) (   0.03, 140.55)    5.65                80
 08/12/2025   04:04:43   (  -0.01, 140.53) (  -0.19, 139.77)   86.80                80
 08/13/2025   03:48:38   (  -0.01, 140.51) (   0.84, 144.30)  432.54                80
 08/14/2025   16:10:26   (   0.01, 140.47) (   0.32, 139.03)  163.71                80