Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 16.  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)
 01/17/2025   03:48:30   (   0.01, 140.75) (   0.83, 144.47)  424.14                80
 01/18/2025   16:10:14   (  -0.01, 140.73) (   0.34, 139.21)  173.78                80
 01/19/2025   15:48:46   (  -0.01, 140.72) (  -0.66, 143.76)  344.74                80
 01/21/2025   04:10:39   (   0.02, 140.71) (  -0.50, 138.46)  255.98                80
 01/22/2025   03:54:31   (   0.02, 140.69) (   0.51, 143.00)  263.06                80
 01/23/2025   16:16:16   (  -0.02, 140.67) (   0.65, 137.74)  333.56                80
 01/24/2025   15:54:48   (  -0.03, 140.65) (  -0.36, 142.29)  185.41                80
 01/26/2025   04:16:40   (   0.03, 140.63) (  -0.79, 136.99)  415.19                80
 01/27/2025   04:00:33   (   0.04, 140.61) (   0.22, 141.53)  104.19                80
 01/28/2025   16:22:17   (  -0.04, 140.58) (   0.92, 136.27)  491.31                80
 01/29/2025   16:00:50   (  -0.04, 140.56) (  -0.10, 140.81)   28.28                80