Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 15.  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)
 12/16/2022   06:27:56   (  -0.02, -75.18) (   0.14, -75.93)   85.41                80
 12/17/2022   06:09:38   (  -0.02, -75.19) (  -1.00, -70.86)  493.14                80
 12/18/2022   18:25:32   (   0.02, -75.20) (   0.01, -75.36)   17.42                80
 12/21/2022   06:25:31   (  -0.01, -75.21) (  -0.12, -74.70)   57.87                80
 12/22/2022   18:41:25   (   0.01, -75.22) (  -0.88, -79.19)  452.68                80
 12/23/2022   18:23:07   (   0.00, -75.22) (   0.27, -74.12)  126.25                80
 12/25/2022   06:41:24   (  -0.00, -75.23) (   0.72, -78.54)  376.79                80
 12/26/2022   06:17:45   (   0.00, -75.24) (  -0.39, -73.46)  202.36                80
 12/27/2022   18:36:20   (  -0.00, -75.26) (  -0.57, -77.96)  307.53                80
 12/28/2022   18:18:01   (  -0.00, -75.27) (   0.53, -72.88)  272.34                80