Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 23.  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)
 09/24/2025   08:12:00   (  -0.10,-104.68) (  -0.64,-102.16)  286.87                80
 09/25/2025   20:33:55   (   0.10,-104.70) (  -0.51,-107.47)  315.40                80
 09/26/2025   20:17:50   (   0.10,-104.70) (   0.50,-102.93)  201.74                80
 09/28/2025   08:39:36   (  -0.10,-104.70) (   0.70,-108.19)  398.34                80
 09/29/2025   08:18:11   (  -0.10,-104.70) (  -0.31,-103.65)  118.27                80
 09/30/2025   20:40:06   (   0.10,-104.70) (  -0.83,-108.96)  484.96                80
 10/01/2025   20:24:01   (   0.11,-104.70) (   0.19,-104.43)   32.12                80
 10/04/2025   08:27:01   (  -0.11,-104.71) (  -0.03,-105.15)   50.49                80
 10/05/2025   08:05:36   (  -0.11,-104.71) (  -1.06,-100.62)  466.36                80
 10/06/2025   20:27:30   (   0.11,-104.71) (  -0.14,-105.91)  136.72                80