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)
 12/25/2024   04:17:54   (  -0.01, 140.77) (  -0.88, 136.76)  456.29                80
 12/26/2024   04:01:47   (  -0.01, 140.76) (   0.11, 141.30)   60.74                80
 12/28/2024   16:04:47   (   0.02, 140.76) (   0.03, 140.56)   21.62                80
 12/29/2024   15:43:21   (   0.02, 140.76) (  -0.97, 145.10)  495.72                80
 12/31/2024   04:05:14   (  -0.02, 140.76) (  -0.21, 139.81)  107.77                80
 01/01/2025   03:49:07   (  -0.02, 140.75) (   0.80, 144.34)  409.77                80
 01/02/2025   16:10:53   (   0.01, 140.74) (   0.39, 139.08)  188.41                80
 01/03/2025   15:49:26   (   0.01, 140.73) (  -0.62, 143.62)  329.35                80
 01/05/2025   04:11:20   (  -0.01, 140.72) (  -0.54, 138.32)  272.97                80
 01/06/2025   03:52:33   (  -0.00, 140.71) (   0.48, 142.86)  245.49                80