Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 8 4.  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)
 08/06/2025   08:33:41   (  -0.05,-104.73) (   0.38,-106.77)  232.11                80
 08/07/2025   08:12:16   (  -0.05,-104.73) (  -0.64,-102.24)  284.03                80
 08/08/2025   20:34:13   (   0.06,-104.73) (  -0.56,-107.54)  320.01                80
 08/09/2025   20:18:08   (   0.06,-104.73) (   0.47,-103.01)  196.52                80
 08/11/2025   08:39:55   (  -0.06,-104.73) (   0.74,-108.28)  404.75                80
 08/12/2025   08:18:31   (  -0.06,-104.73) (  -0.28,-103.75)  111.64                80
 08/13/2025   20:40:27   (   0.07,-104.73) (  -0.90,-109.05)  492.48                80
 08/14/2025   20:24:23   (   0.07,-104.73) (   0.13,-104.53)   24.07                80
 08/17/2025   08:27:26   (  -0.07,-104.72) (   0.06,-105.26)   61.46                80
 08/18/2025   08:06:01   (  -0.07,-104.72) (  -0.97,-100.73)  454.40                80