Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 8 20.  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)
 08/20/2025   20:11:53   (   0.08,-104.72) (   0.82,-101.50)  367.55                80
 08/22/2025   08:33:40   (  -0.09,-104.70) (   0.39,-106.76)  235.67                80
 08/23/2025   08:12:15   (  -0.09,-104.70) (  -0.64,-102.24)  280.65                80
 08/24/2025   20:34:11   (   0.09,-104.72) (  -0.57,-107.53)  321.54                80
 08/25/2025   20:18:06   (   0.09,-104.72) (   0.47,-103.00)  195.30                80
 08/27/2025   08:39:54   (  -0.09,-104.71) (   0.69,-108.28)  406.84                80
 08/28/2025   08:18:29   (  -0.09,-104.71) (  -0.29,-103.74)  109.66                80
 08/29/2025   20:40:25   (   0.10,-104.72) (  -0.85,-109.05)  493.01                80
 08/30/2025   20:24:20   (   0.10,-104.72) (   0.13,-104.51)   23.63                80
 09/02/2025   08:27:24   (  -0.11,-104.71) (  -0.01,-105.26)   62.56                80
 09/03/2025   08:05:58   (  -0.11,-104.70) (  -0.98,-100.72)  453.58                80