Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 12 23.  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)
 12/23/2024   15:56:00   (   0.01, 140.76) (  -0.30, 142.05)  147.67                80
 12/25/2024   04:17:53   (  -0.01, 140.77) (  -0.91, 136.76)  456.51                80
 12/26/2024   04:01:47   (  -0.01, 140.76) (   0.09, 141.30)   60.63                80
 12/28/2024   16:04:47   (   0.02, 140.76) (   0.06, 140.57)   21.34                80
 12/29/2024   15:43:20   (   0.02, 140.75) (  -0.94, 145.11)  495.82                80
 12/31/2024   04:05:13   (  -0.02, 140.76) (  -0.24, 139.81)  107.60                80
 01/01/2025   03:49:07   (  -0.02, 140.75) (   0.77, 144.35)  409.98                80
 01/02/2025   16:10:52   (   0.03, 140.73) (   0.42, 139.09)  188.02                80
 01/03/2025   15:49:27   (   0.02, 140.73) (  -0.65, 143.61)  329.86                80
 01/05/2025   04:13:59   (  -0.03, 140.72) (  -0.57, 138.33)  272.40                80