Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 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)
 10/14/2025   08:39:17   (  -0.03,-104.69) (   0.72,-108.09)  387.36                80
 10/15/2025   08:17:50   (  -0.04,-104.69) (  -0.27,-103.55)  129.32                80
 10/16/2025   20:39:44   (   0.04,-104.69) (  -0.92,-108.84)  473.38                80
 10/17/2025   20:23:39   (   0.04,-104.70) (   0.13,-104.31)   44.13                80
 10/20/2025   08:26:38   (  -0.03,-104.70) (   0.05,-105.03)   37.14                80
 10/21/2025   08:05:12   (  -0.04,-104.71) (  -1.00,-100.50)  480.11                80
 10/22/2025   20:27:06   (   0.02,-104.71) (  -0.24,-105.78)  122.43                80
 10/23/2025   20:11:00   (   0.03,-104.71) (   0.81,-101.25)  395.17                80
 10/25/2025   08:32:44   (  -0.01,-104.72) (   0.40,-106.50)  203.17                80
 10/26/2025   08:11:19   (  -0.02,-104.72) (  -0.66,-101.97)  313.71                80