Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 10 16.  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)
 10/17/2025   20:23:38   (   0.04,-104.69) (   0.10,-104.30)   43.05                80
 10/20/2025   08:26:38   (  -0.03,-104.66) (   0.02,-105.03)   41.43                80
 10/21/2025   08:05:12   (  -0.03,-104.66) (  -0.98,-100.49)  474.91                80
 10/22/2025   20:27:06   (   0.02,-104.65) (  -0.21,-105.79)  128.79                80
 10/23/2025   20:11:00   (   0.02,-104.64) (   0.79,-101.24)  387.78                80
 10/25/2025   08:32:44   (  -0.01,-104.63) (   0.42,-106.49)  212.55                80
 10/26/2025   08:11:17   (  -0.02,-104.62) (  -0.59,-101.95)  303.34                80
 10/27/2025   20:33:12   (   0.01,-104.60) (  -0.59,-107.25)  301.54                80
 10/28/2025   20:17:05   (   0.02,-104.59) (   0.42,-102.71)  214.77                80
 10/30/2025   08:38:50   (  -0.01,-104.59) (   0.77,-107.96)  384.85                80