Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 7 15.  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)
 07/16/2025   04:10:54   (  -0.02, 140.76) (  -0.57, 138.29)  281.52                80
 07/17/2025   03:54:49   (  -0.02, 140.75) (   0.44, 142.82)  235.37                80
 07/18/2025   16:16:37   (   0.01, 140.74) (   0.70, 137.54)  364.09                80
 07/19/2025   15:55:13   (  -0.01, 140.74) (  -0.30, 142.07)  152.35                80
 07/21/2025   04:17:10   (   0.01, 140.73) (  -0.88, 136.77)  451.96                80
 07/22/2025   04:01:06   (   0.01, 140.72) (   0.13, 141.30)   65.38                80
 07/24/2025   16:04:10   (  -0.00, 140.69) (   0.01, 140.55)   15.21                80
 07/27/2025   04:04:42   (  -0.00, 140.65) (  -0.17, 139.77)   99.43                80
 07/28/2025   03:48:38   (  -0.00, 140.63) (   0.84, 144.30)  419.42                80
 07/29/2025   16:10:25   (   0.00, 140.58) (   0.37, 139.04)  176.25                80