Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 9 25.  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)
 09/26/2025   20:17:50   (   0.09,-104.70) (   0.47,-102.92)  202.01                80
 09/28/2025   08:39:37   (  -0.09,-104.70) (   0.67,-108.20)  398.03                80
 09/29/2025   08:18:11   (  -0.09,-104.70) (  -0.34,-103.66)  118.59                80
 09/30/2025   20:40:06   (   0.09,-104.70) (  -0.86,-108.95)  484.74                80
 10/01/2025   20:24:00   (   0.09,-104.70) (   0.16,-104.42)   32.25                80
 10/04/2025   08:27:01   (  -0.10,-104.71) (  -0.01,-105.15)   50.17                80
 10/05/2025   08:05:36   (  -0.10,-104.71) (  -1.03,-100.62)  466.66                80
 10/06/2025   20:27:30   (   0.09,-104.71) (  -0.16,-105.91)  136.51                80
 10/07/2025   20:11:23   (   0.10,-104.71) (   0.82,-101.36)  380.71                80
 10/09/2025   08:33:10   (  -0.09,-104.72) (   0.34,-106.63)  218.17                80