Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 14.  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)
 12/14/2022   18:12:17   (   0.01, -75.19) (   0.82, -71.50)  419.69                80
 12/16/2022   06:27:56   (  -0.02, -75.18) (   0.16, -75.93)   85.45                80
 12/17/2022   06:09:38   (  -0.01, -75.19) (  -0.99, -70.86)  493.03                80
 12/18/2022   18:25:32   (   0.02, -75.20) (  -0.00, -75.35)   17.51                80
 12/21/2022   06:22:51   (  -0.01, -75.20) (  -0.11, -74.70)   57.53                80
 12/22/2022   18:41:25   (   0.01, -75.21) (  -0.90, -79.19)  453.27                80
 12/23/2022   18:23:07   (   0.00, -75.22) (   0.25, -74.12)  125.58                80
 12/25/2022   06:41:24   (   0.00, -75.22) (   0.74, -78.54)  377.41                80
 12/26/2022   06:17:44   (   0.00, -75.23) (  -0.37, -73.46)  201.66                80
 12/27/2022   18:36:20   (  -0.00, -75.25) (  -0.59, -77.96)  308.45                80