Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 14.  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)
 10/17/2025   01:44:28   (   0.02, 175.48) (  -0.11, 174.85)   70.74                80
 10/18/2025   12:24:58   (  -0.03,-163.27) (   0.41,-165.22)  222.27                80
 10/19/2025   23:08:46   (   0.02,-149.82) (   0.97,-145.72)  468.12                80
 10/20/2025   22:46:37   (   0.03,-138.12) (  -0.56,-140.61)  284.62                80
 10/21/2025   09:49:17   (  -0.03,-128.62) (  -0.68,-125.80)  321.85                80
 10/22/2025   09:27:07   (  -0.03,-116.70) (   0.85,-120.69)  454.63                80
 10/23/2025   20:10:55   (   0.03,-103.40) (   0.54,-101.19)  252.81                80
 10/25/2025   06:51:25   (  -0.03, -82.02) (  -0.19, -81.26)   87.07                80
 10/27/2025   17:13:05   (   0.03, -56.96) (   0.12, -56.66)   35.25                80