Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 19.  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)
 09/20/2025   20:27:44   (   0.10,-104.68) (  -0.20,-105.97)  147.06                80
 09/21/2025   20:11:38   (   0.10,-104.69) (   0.80,-101.43)  370.39                80
 09/23/2025   08:33:26   (  -0.10,-104.68) (   0.37,-106.70)  230.07                80
 09/24/2025   08:12:00   (  -0.10,-104.69) (  -0.64,-102.16)  286.98                80
 09/25/2025   20:33:56   (   0.10,-104.70) (  -0.52,-107.47)  314.93                80
 09/26/2025   20:17:50   (   0.10,-104.71) (   0.49,-102.93)  202.31                80
 09/28/2025   08:39:37   (  -0.10,-104.71) (   0.67,-108.20)  397.85                80
 09/29/2025   08:18:12   (  -0.10,-104.71) (  -0.34,-103.66)  118.80                80
 09/30/2025   20:40:06   (   0.10,-104.71) (  -0.88,-108.96)  484.10                80
 10/01/2025   20:24:02   (   0.11,-104.72) (   0.19,-104.43)   33.05                80