Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 12 30.  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)
 12/31/2024   04:05:13   (  -0.02, 140.75) (  -0.21, 139.81)  106.88                80
 01/01/2025   03:49:07   (  -0.02, 140.75) (   0.81, 144.35)  410.80                80
 01/02/2025   16:10:52   (   0.02, 140.74) (   0.37, 139.08)  187.81                80
 01/03/2025   15:49:26   (   0.01, 140.73) (  -0.65, 143.62)  330.16                80
 01/05/2025   04:13:58   (  -0.02, 140.71) (  -0.56, 138.33)  271.07                80
 01/06/2025   03:52:32   (  -0.01, 140.70) (   0.47, 142.87)  247.56                80
 01/07/2025   16:16:57   (   0.02, 140.67) (   0.68, 137.60)  349.26                80
 01/08/2025   15:55:29   (   0.02, 140.66) (  -0.29, 142.15)  169.55                80
 01/10/2025   04:20:02   (  -0.03, 140.63) (  -0.89, 136.86)  430.84                80
 01/11/2025   03:58:35   (  -0.02, 140.62) (   0.15, 141.39)   88.35                80