Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 14.  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)
 10/15/2025   08:17:50   (  -0.04,-104.69) (  -0.29,-103.55)  129.19                80
 10/16/2025   20:39:45   (   0.04,-104.69) (  -0.90,-108.85)  473.54                80
 10/17/2025   20:23:39   (   0.04,-104.70) (   0.15,-104.32)   43.98                80
 10/20/2025   08:26:38   (  -0.04,-104.70) (   0.03,-105.03)   37.50                80
 10/21/2025   08:05:12   (  -0.04,-104.70) (  -0.97,-100.49)  479.66                80
 10/22/2025   20:27:06   (   0.03,-104.71) (  -0.22,-105.78)  122.91                80
 10/23/2025   20:10:59   (   0.03,-104.71) (   0.78,-101.24)  394.60                80
 10/25/2025   08:32:45   (  -0.02,-104.71) (   0.38,-106.50)  203.84                80
 10/26/2025   08:11:18   (  -0.02,-104.71) (  -0.63,-101.96)  312.97                80
 10/27/2025   20:33:13   (   0.01,-104.70) (  -0.55,-107.26)  290.81                80