Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 8 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)
 08/25/2025   20:18:06   (   0.09,-104.71) (   0.44,-103.00)  194.37                80
 08/27/2025   08:39:54   (  -0.09,-104.69) (   0.71,-108.27)  407.96                80
 08/28/2025   08:18:30   (  -0.09,-104.69) (  -0.32,-103.75)  108.25                80
 08/29/2025   20:40:25   (   0.10,-104.70) (  -0.87,-109.04)  495.11                80
 08/30/2025   20:24:20   (   0.10,-104.70) (   0.16,-104.52)   21.32                80
 09/02/2025   08:27:23   (  -0.11,-104.68) (   0.01,-105.25)   65.34                80
 09/03/2025   08:05:58   (  -0.11,-104.67) (  -0.97,-100.71)  450.51                80
 09/04/2025   20:27:54   (   0.12,-104.67) (  -0.16,-106.03)  153.33                80
 09/05/2025   20:11:49   (   0.12,-104.67) (   0.83,-101.49)  362.95                80
 09/07/2025   08:33:37   (  -0.12,-104.66) (   0.33,-106.76)  239.00                80
 09/08/2025   08:12:11   (  -0.12,-104.66) (  -0.66,-102.22)  277.12                80