Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 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)
 03/13/2023   18:32:36   (   0.07, -75.20) (  -0.40, -77.30)  239.37                80
 03/14/2023   18:16:31   (   0.07, -75.20) (   0.60, -72.77)  277.00                80
 03/16/2023   06:38:17   (  -0.06, -75.19) (   0.59, -78.03)  324.00                80
 03/17/2023   06:16:52   (  -0.06, -75.19) (  -0.42, -73.50)  192.53                80
 03/18/2023   18:38:47   (   0.05, -75.20) (  -0.75, -78.80)  410.94                80
 03/19/2023   18:22:42   (   0.05, -75.20) (   0.27, -74.27)  106.24                80
 03/21/2023   06:44:28   (  -0.04, -75.21) (   0.91, -79.54)  492.98                80
 03/22/2023   06:23:02   (  -0.05, -75.22) (  -0.11, -75.01)   24.66                80
 03/24/2023   18:28:51   (   0.05, -75.25) (  -0.06, -75.77)   59.37                80
 03/25/2023   18:07:26   (   0.05, -75.27) (   0.97, -71.24)  458.82                80
 03/27/2023   06:31:51   (  -0.04, -75.29) (   0.25, -76.50)  139.05                80