Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2024 12 15.  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)
 12/16/2024   03:49:31   (  -0.02, 140.75) (   0.75, 144.29)  401.79                80
 12/17/2024   16:11:17   (   0.01, 140.74) (   0.41, 139.02)  197.16                80
 12/18/2024   15:49:52   (   0.00, 140.74) (  -0.62, 143.55)  320.24                80
 12/20/2024   04:14:26   (  -0.00, 140.72) (  -0.55, 138.24)  282.33                80
 12/21/2024   03:53:00   (   0.01, 140.71) (   0.44, 142.79)  236.00                80
 12/22/2024   16:17:26   (  -0.00, 140.68) (   0.72, 137.52)  360.55                80
 12/23/2024   15:56:01   (  -0.01, 140.66) (  -0.33, 142.04)  158.14                80
 12/25/2024   04:20:34   (   0.00, 140.64) (  -0.87, 136.75)  442.87                80
 12/26/2024   03:59:07   (   0.00, 140.61) (   0.12, 141.29)   76.42                80
 12/28/2024   16:04:47   (   0.01, 140.55) (   0.03, 140.56)    2.30                80