Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 8.  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)
 01/10/2025   04:17:21   (  -0.01, 140.77) (  -0.89, 136.86)  445.00                80
 01/11/2025   04:01:14   (  -0.01, 140.77) (   0.15, 141.40)   72.55                80
 01/13/2025   16:04:11   (   0.01, 140.75) (   0.05, 140.69)    7.74                80
 01/16/2025   04:04:37   (  -0.01, 140.73) (  -0.17, 139.93)   91.49                80
 01/17/2025   03:48:30   (  -0.01, 140.72) (   0.83, 144.47)  427.44                80
 01/18/2025   16:10:14   (   0.00, 140.68) (   0.34, 139.21)  167.86                80
 01/19/2025   15:48:47   (   0.00, 140.66) (  -0.72, 143.74)  351.42                80
 01/21/2025   04:10:39   (  -0.00, 140.65) (  -0.50, 138.46)  249.25                80
 01/22/2025   03:54:31   (  -0.00, 140.62) (   0.51, 143.00)  270.60                80