Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 4 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)
 04/22/2025   04:03:35   (  -0.03, 140.76) (  -0.18, 140.08)   77.75                80
 04/23/2025   03:47:28   (  -0.03, 140.75) (   0.84, 144.61)  440.52                80
 04/24/2025   16:09:14   (   0.03, 140.74) (   0.33, 139.35)  158.03                80
 04/25/2025   15:47:47   (   0.03, 140.73) (  -0.69, 143.89)  360.41                80
 04/27/2025   04:09:39   (  -0.03, 140.70) (  -0.53, 138.61)  239.73                80
 04/28/2025   03:53:33   (  -0.03, 140.69) (   0.50, 143.14)  279.16                80
 04/29/2025   16:15:18   (   0.02, 140.67) (   0.67, 137.88)  318.67                80
 04/30/2025   15:53:52   (   0.02, 140.66) (  -0.36, 142.42)  200.12                80
 05/02/2025   04:15:45   (  -0.02, 140.63) (  -0.78, 137.12)  399.71                80
 05/03/2025   03:59:38   (  -0.02, 140.61) (   0.20, 141.67)  119.96                80
 05/04/2025   16:21:23   (   0.02, 140.58) (   0.96, 136.40)  475.86                80
 05/05/2025   15:59:56   (   0.03, 140.55) (  -0.08, 140.94)   44.32                80