Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 8 10.  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)
 08/11/2025   08:39:55   (  -0.06,-104.73) (   0.76,-108.27)  404.47                80
 08/12/2025   08:18:31   (  -0.06,-104.73) (  -0.26,-103.74)  111.74                80
 08/13/2025   20:40:27   (   0.06,-104.73) (  -0.92,-109.05)  491.95                80
 08/14/2025   20:24:22   (   0.06,-104.73) (   0.11,-104.52)   24.32                80
 08/17/2025   08:27:25   (  -0.07,-104.71) (   0.07,-105.25)   62.27                80
 08/18/2025   08:06:01   (  -0.07,-104.70) (  -0.96,-100.73)  453.41                80
 08/19/2025   20:27:57   (   0.08,-104.71) (  -0.20,-106.03)  151.02                80
 08/20/2025   20:11:52   (   0.08,-104.70) (   0.77,-101.49)  365.13                80
 08/22/2025   08:33:40   (  -0.09,-104.69) (   0.38,-106.77)  236.75                80
 08/23/2025   08:12:15   (  -0.09,-104.69) (  -0.65,-102.24)  279.54                80