Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 13.  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)
 12/13/2022   18:30:36   (   0.02, -75.19) (  -0.28, -76.58)  158.37                80
 12/14/2022   18:12:17   (   0.01, -75.19) (   0.85, -71.51)  419.74                80
 12/16/2022   06:27:57   (  -0.02, -75.18) (   0.14, -75.94)   85.33                80
 12/17/2022   06:09:37   (  -0.01, -75.19) (  -0.95, -70.85)  493.20                80
 12/18/2022   18:25:31   (   0.02, -75.20) (  -0.04, -75.34)   17.43                80
 12/21/2022   06:25:31   (  -0.01, -75.21) (  -0.13, -74.70)   57.80                80
 12/22/2022   18:41:25   (   0.01, -75.21) (  -0.88, -79.19)  452.96                80
 12/23/2022   18:23:07   (  -0.00, -75.22) (   0.27, -74.12)  125.95                80
 12/25/2022   06:41:24   (   0.00, -75.23) (   0.72, -78.54)  376.99                80
 12/26/2022   06:17:45   (   0.01, -75.24) (  -0.39, -73.46)  202.11                80