Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 18.  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)
 01/19/2025   15:48:46   (  -0.01, 140.76) (  -0.65, 143.76)  341.43                80
 01/21/2025   04:10:38   (   0.01, 140.77) (  -0.51, 138.47)  262.57                80
 01/22/2025   03:54:31   (   0.01, 140.77) (   0.50, 143.01)  254.72                80
 01/23/2025   16:16:15   (  -0.01, 140.76) (   0.66, 137.75)  343.87                80
 01/24/2025   15:54:48   (  -0.01, 140.77) (  -0.36, 142.29)  173.42                80
 01/26/2025   04:16:39   (   0.02, 140.78) (  -0.85, 137.01)  430.24                80
 01/27/2025   04:00:32   (   0.02, 140.77) (   0.17, 141.55)   87.47                80
 01/29/2025   16:00:48   (  -0.02, 140.76) (  -0.06, 140.82)    8.46                80
 02/01/2025   04:03:52   (   0.01, 140.75) (  -0.11, 140.08)   76.06                80