Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 24.  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)
 10/24/2023   18:14:59   (  -0.04, -75.20) (   0.55, -72.67)  289.50                80
 10/26/2023   06:34:09   (   0.03, -75.20) (   0.63, -77.95)  312.85                80
 10/27/2023   06:18:05   (   0.03, -75.20) (  -0.35, -73.42)  202.98                80
 10/28/2023   18:37:25   (  -0.03, -75.21) (  -0.83, -78.73)  402.08                80
 10/29/2023   18:21:22   (  -0.03, -75.21) (   0.22, -74.22)  114.15                80
 10/31/2023   06:40:32   (   0.03, -75.22) (   1.01, -79.49)  487.08                80
 11/01/2023   06:24:29   (   0.03, -75.22) (  -0.03, -74.97)   29.21                80
 11/03/2023   18:25:05   (  -0.02, -75.25) (  -0.13, -75.76)   58.52                80
 11/04/2023   18:09:01   (  -0.02, -75.26) (   0.86, -71.23)  458.42                80
 11/06/2023   06:30:52   (   0.01, -75.28) (   0.30, -76.52)  141.25                80