Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 10 21.  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)
 10/22/2025   16:15:50   (  -0.01, 140.70) (   0.62, 137.76)  333.95                80
 10/23/2025   15:54:23   (  -0.00, 140.69) (  -0.38, 142.31)  184.61                80
 10/25/2025   04:16:18   (   0.00, 140.68) (  -0.80, 137.01)  417.66                80
 10/26/2025   04:00:11   (   0.00, 140.66) (   0.20, 141.55)  101.15                80
 10/27/2025   16:21:56   (  -0.00, 140.63) (   1.00, 136.30)  494.32                80
 10/28/2025   16:00:30   (  -0.00, 140.62) (  -0.07, 140.83)   24.82                80
 10/31/2025   04:03:38   (   0.00, 140.58) (  -0.09, 140.07)   57.08                80
 11/01/2025   03:47:31   (   0.00, 140.56) (   0.92, 144.61)  462.77                80
 11/02/2025   16:09:16   (  -0.00, 140.51) (   0.26, 139.36)  130.94                80
 11/03/2025   15:47:49   (  -0.00, 140.48) (  -0.76, 143.90)  389.13                80