Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 13.  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)
 11/16/2025   04:03:51   (   0.01, 140.80) (  -0.16, 140.05)   85.51                80
 11/17/2025   03:47:48   (   0.00, 140.80) (   0.86, 144.58)  430.20                80
 11/18/2025   16:09:38   (   0.01, 140.79) (   0.37, 139.31)  169.71                80
 11/19/2025   15:48:15   (   0.01, 140.79) (  -0.66, 143.83)  345.99                80
 11/21/2025   04:10:15   (  -0.02, 140.80) (  -0.50, 138.51)  260.55                80
 11/22/2025   03:54:12   (  -0.01, 140.80) (   0.48, 143.04)  255.56                80
 11/23/2025   16:16:02   (   0.02, 140.78) (   0.68, 137.76)  343.38                80
 11/24/2025   15:54:39   (   0.01, 140.77) (  -0.30, 142.29)  172.77                80
 11/26/2025   04:19:18   (  -0.02, 140.77) (  -0.89, 136.98)  433.06                80
 11/27/2025   03:57:56   (  -0.01, 140.76) (   0.16, 141.50)   83.81                80