Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 1 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)
 01/16/2025   04:04:37   (   0.02, 140.76) (  -0.18, 139.93)   95.35                80
 01/17/2025   03:48:30   (   0.02, 140.75) (   0.87, 144.46)  423.43                80
 01/18/2025   16:10:15   (  -0.02, 140.74) (   0.30, 139.20)  174.67                80
 01/19/2025   15:48:47   (  -0.02, 140.73) (  -0.70, 143.75)  344.37                80
 01/21/2025   04:10:39   (   0.02, 140.69) (  -0.47, 138.45)  254.55                80
 01/22/2025   03:54:32   (   0.03, 140.67) (   0.53, 143.00)  265.05                80
 01/23/2025   16:16:16   (  -0.03, 140.65) (   0.63, 137.74)  331.64                80
 01/24/2025   15:54:49   (  -0.03, 140.63) (  -0.38, 142.28)  187.82                80
 01/26/2025   04:16:41   (   0.04, 140.59) (  -0.78, 136.99)  411.09                80
 01/27/2025   04:00:34   (   0.04, 140.57) (   0.23, 141.53)  108.88                80