Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 11 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)
 11/22/2025   03:54:12   (  -0.02, 140.77) (   0.46, 143.04)  258.88                80
 11/23/2025   16:16:03   (   0.02, 140.79) (   0.71, 137.77)  345.16                80
 11/24/2025   15:54:40   (   0.01, 140.81) (  -0.32, 142.29)  168.40                80
 11/26/2025   04:16:41   (  -0.01, 140.84) (  -0.84, 136.97)  440.49                80
 11/27/2025   04:00:37   (   0.00, 140.85) (   0.13, 141.50)   73.82                80
 11/29/2025   16:03:45   (  -0.00, 140.87) (   0.01, 140.74)   13.91                80
 12/02/2025   04:04:21   (  -0.01, 140.89) (  -0.24, 139.96)  106.50                80
 12/03/2025   03:48:18   (  -0.01, 140.90) (   0.79, 144.48)  408.64                80
 12/04/2025   16:10:09   (   0.02, 140.90) (   0.38, 139.21)  192.65                80
 12/05/2025   15:48:45   (   0.01, 140.91) (  -0.60, 143.74)  322.26                80