Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 13.  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)
 11/14/2025   10:39:38   (  -0.01,-136.99) (   0.26,-138.21)  139.56                80
 11/15/2025   10:18:16   (  -0.01,-136.99) (  -0.75,-133.69)  375.83                80
 11/16/2025   22:40:16   (   0.00,-137.00) (  -0.43,-139.01)  229.27                80
 11/17/2025   22:24:13   (  -0.00,-136.99) (   0.53,-134.48)  286.12                80
 11/19/2025   10:46:03   (   0.01,-136.97) (   0.63,-139.75)  316.91                80
 11/20/2025   10:24:41   (   0.01,-136.96) (  -0.39,-135.23)  197.69                80
 11/21/2025   22:46:40   (  -0.02,-136.95) (  -0.82,-140.54)  409.11                80
 11/22/2025   22:27:58   (  -0.01,-136.94) (   0.22,-136.02)  105.11                80
 11/24/2025   10:52:27   (   0.01,-136.91) (   1.00,-141.29)  499.27                80
 11/25/2025   10:31:04   (   0.01,-136.89) (  -0.04,-136.77)   14.67                80