Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 21.  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)
 09/21/2025   20:11:38   (   0.10,-104.68) (   0.81,-101.43)  370.29                80
 09/23/2025   08:33:26   (  -0.10,-104.68) (   0.36,-106.70)  230.19                80
 09/24/2025   08:12:00   (  -0.10,-104.68) (  -0.64,-102.16)  286.78                80
 09/25/2025   20:33:56   (   0.10,-104.70) (  -0.51,-107.47)  315.31                80
 09/26/2025   20:17:50   (   0.10,-104.70) (   0.50,-102.93)  201.85                80
 09/28/2025   08:39:37   (  -0.10,-104.70) (   0.66,-108.20)  398.34                80
 09/29/2025   08:18:12   (  -0.10,-104.70) (  -0.35,-103.67)  118.28                80
 09/30/2025   20:40:06   (   0.10,-104.70) (  -0.86,-108.96)  484.80                80
 10/01/2025   20:24:01   (   0.11,-104.71) (   0.16,-104.42)   32.22                80
 10/04/2025   08:27:03   (  -0.11,-104.71) (  -0.03,-105.16)   50.52                80
 10/05/2025   08:05:37   (  -0.11,-104.71) (  -1.05,-100.63)  466.32                80