Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 12.  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)
 01/13/2025   16:04:12   (   0.02, 140.75) (   0.01, 140.68)    8.47                80
 01/16/2025   04:04:37   (  -0.02, 140.74) (  -0.19, 139.93)   92.17                80
 01/17/2025   03:48:29   (  -0.02, 140.73) (   0.80, 144.48)  426.57                80
 01/18/2025   16:10:13   (   0.02, 140.70) (   0.37, 139.22)  169.26                80
 01/19/2025   15:48:47   (   0.01, 140.68) (  -0.69, 143.75)  349.80                80
 01/21/2025   04:10:38   (  -0.02, 140.66) (  -0.54, 138.47)  250.87                80
 01/22/2025   03:54:32   (  -0.02, 140.64) (   0.53, 143.00)  268.76                80
 01/23/2025   16:16:16   (   0.02, 140.60) (   0.64, 137.74)  325.62                80
 01/24/2025   15:54:49   (   0.02, 140.58) (  -0.37, 142.28)  193.97                80
 01/26/2025   04:19:20   (  -0.03, 140.56) (  -0.84, 137.00)  406.38                80