Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2026 6 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 06/13/2026   20:40:24   (   0.15,-104.69) (  -0.75,-108.79)  466.04                80
 06/14/2026   20:24:19   (   0.13,-104.69) (   0.26,-104.25)   51.15                80
 06/17/2026   08:24:39   (  -0.15,-104.70) (  -0.09,-104.99)   32.14                80
 06/18/2026   08:08:34   (  -0.13,-104.71) (  -1.11,-100.46)  485.28                80
 06/19/2026   20:27:49   (   0.17,-104.71) (  -0.04,-105.76)  119.40                80
 06/20/2026   20:11:43   (   0.15,-104.72) (   0.92,-101.22)  398.38                80
 06/22/2026   08:30:50   (  -0.18,-104.73) (   0.20,-106.50)  201.03                80
 06/23/2026   08:14:44   (  -0.17,-104.74) (  -0.76,-101.96)  316.82                80
 06/24/2026   20:34:00   (   0.21,-104.75) (  -0.34,-107.28)  287.61                80
 06/25/2026   20:17:54   (   0.19,-104.76) (   0.63,-102.73)  230.11                80
 06/27/2026   08:37:01   (  -0.23,-104.77) (   0.48,-108.02)  369.53                80