Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 4 19.  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)
 04/21/2025   06:57:25   (  -0.04, -80.66) (   0.44, -82.68)  230.91                80
 04/22/2025   06:36:00   (  -0.04, -81.15) (  -0.69, -78.16)  340.27                80
 04/23/2025   19:00:36   (   0.03, -81.94) (  -0.30, -83.50)  177.36                80
 04/24/2025   18:39:12   (   0.04, -82.44) (   0.84, -78.99)  394.30                80
 04/26/2025   07:03:39   (  -0.03, -83.20) (   0.22, -84.27)  122.72                80
 04/27/2025   06:42:15   (  -0.04, -83.70) (  -0.92, -79.76)  448.88                80
 04/28/2025   19:06:50   (   0.03, -84.49) (  -0.11, -85.09)   68.37                80
 05/01/2025   07:09:53   (  -0.03, -85.75) (   0.02, -85.86)   13.43                80
 05/03/2025   19:10:24   (   0.02, -87.05) (   0.12, -86.68)   42.18                80