Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2025 4 17.  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)
 04/18/2025   18:54:21   (   0.05, -79.41) (  -0.53, -81.90)  283.90                80
 04/19/2025   18:32:57   (   0.05, -79.91) (   0.60, -77.38)  287.01                80
 04/21/2025   06:57:25   (  -0.04, -80.65) (   0.40, -82.68)  230.96                80
 04/22/2025   06:36:01   (  -0.04, -81.15) (  -0.73, -78.17)  340.15                80
 04/23/2025   19:00:36   (   0.03, -81.93) (  -0.32, -83.49)  177.77                80
 04/24/2025   18:39:12   (   0.03, -82.44) (   0.82, -78.98)  393.83                80
 04/26/2025   07:03:39   (  -0.03, -83.19) (   0.23, -84.27)  123.15                80
 04/27/2025   06:42:14   (  -0.03, -83.70) (  -0.91, -79.76)  448.41                80
 04/28/2025   19:06:50   (   0.03, -84.48) (  -0.12, -85.08)   69.10                80
 05/01/2025   07:09:53   (  -0.03, -85.74) (   0.01, -85.86)   14.01                80