Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 1 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 01/15/2025   10:19:06   (   0.03,-136.99) (  -0.71,-133.83)  361.02                80
 01/16/2025   22:43:38   (  -0.03,-137.00) (  -0.52,-139.11)  241.05                80
 01/17/2025   22:22:11   (  -0.03,-137.00) (   0.53,-134.58)  276.47                80
 01/19/2025   10:46:34   (   0.03,-136.99) (   0.70,-139.82)  323.15                80
 01/20/2025   10:25:08   (   0.03,-136.99) (  -0.36,-135.29)  194.06                80
 01/21/2025   22:49:39   (  -0.04,-136.99) (  -0.86,-140.57)  408.84                80
 01/22/2025   22:28:12   (  -0.04,-136.98) (   0.15,-136.03)  108.01                80
 01/24/2025   10:52:36   (   0.05,-136.96) (   1.01,-141.29)  492.80                80
 01/25/2025   10:31:09   (   0.05,-136.95) (   0.01,-136.75)   23.40                80
 01/27/2025   22:36:52   (  -0.06,-136.92) (  -0.21,-137.48)   65.40                80