Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 8.  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)
 01/08/2025   15:55:29   (   0.01, 140.76) (  -0.29, 142.16)  158.94                80
 01/10/2025   04:17:21   (  -0.01, 140.77) (  -0.90, 136.87)  444.82                80
 01/11/2025   04:01:14   (  -0.01, 140.76) (   0.15, 141.40)   72.74                80
 01/13/2025   16:04:11   (   0.01, 140.74) (   0.04, 140.69)    7.46                80
 01/16/2025   04:04:36   (  -0.01, 140.73) (  -0.21, 139.94)   90.99                80
 01/17/2025   03:48:30   (  -0.01, 140.71) (   0.85, 144.47)  428.02                80
 01/18/2025   16:10:14   (   0.01, 140.68) (   0.32, 139.21)  167.26                80
 01/19/2025   15:48:46   (   0.00, 140.66) (  -0.69, 143.75)  352.11                80
 01/21/2025   04:10:38   (  -0.00, 140.64) (  -0.52, 138.47)  248.40                80