Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 11.  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)
 10/12/2025   20:17:31   (   0.03,-104.70) (   0.44,-102.83)  213.09                80
 10/14/2025   08:39:16   (  -0.03,-104.69) (   0.75,-108.08)  386.95                80
 10/15/2025   08:17:51   (  -0.04,-104.69) (  -0.29,-103.55)  129.84                80
 10/16/2025   20:39:45   (   0.03,-104.70) (  -0.89,-108.85)  472.81                80
 10/17/2025   20:23:39   (   0.04,-104.70) (   0.15,-104.32)   44.93                80
 10/20/2025   08:26:38   (  -0.03,-104.72) (   0.03,-105.03)   35.88                80
 10/21/2025   08:05:12   (  -0.03,-104.72) (  -0.96,-100.49)  481.47                80
 10/22/2025   20:27:06   (   0.02,-104.72) (  -0.22,-105.79)  121.00                80
 10/23/2025   20:11:00   (   0.02,-104.73) (   0.78,-101.24)  396.70                80
 10/25/2025   08:32:45   (  -0.01,-104.74) (   0.38,-106.50)  201.25                80