Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 2 19.  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)
 02/20/2023   18:26:26   (   0.06, -75.19) (  -0.09, -75.76)   65.40                80
 02/21/2023   18:10:22   (   0.06, -75.18) (   0.93, -71.23)  450.65                80
 02/23/2023   06:32:10   (  -0.05, -75.18) (   0.23, -76.51)  150.42                80
 02/24/2023   06:10:46   (  -0.05, -75.19) (  -0.79, -71.98)  366.00                80
 02/25/2023   18:32:42   (   0.05, -75.19) (  -0.40, -77.29)  238.09                80
 02/26/2023   18:16:38   (   0.05, -75.20) (   0.62, -72.76)  278.73                80
 02/28/2023   06:38:25   (  -0.04, -75.21) (   0.58, -78.03)  321.22                80
 03/01/2023   06:17:00   (  -0.04, -75.21) (  -0.45, -73.50)  195.81                80
 03/02/2023   18:38:56   (   0.03, -75.23) (  -0.79, -78.80)  407.38                80
 03/03/2023   18:20:11   (   0.03, -75.24) (   0.24, -74.27)  110.18                80
 03/05/2023   06:44:38   (  -0.02, -75.26) (   0.95, -79.54)  488.28                80