Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 3 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)
 03/16/2023   06:38:18   (  -0.07, -75.20) (   0.56, -78.04)  323.90                80
 03/17/2023   06:16:52   (  -0.07, -75.20) (  -0.46, -73.51)  192.77                80
 03/18/2023   18:38:47   (   0.06, -75.21) (  -0.77, -78.80)  410.27                80
 03/19/2023   18:22:41   (   0.06, -75.21) (   0.25, -74.27)  107.08                80
 03/21/2023   06:44:27   (  -0.05, -75.22) (   0.93, -79.53)  492.14                80
 03/22/2023   06:23:02   (  -0.05, -75.23) (  -0.09, -75.00)   25.59                80
 03/24/2023   18:28:51   (   0.05, -75.27) (  -0.08, -75.77)   57.85                80
 03/25/2023   18:07:25   (   0.05, -75.28) (   0.95, -71.24)  460.53                80
 03/27/2023   06:31:52   (  -0.05, -75.30) (   0.21, -76.51)  137.31                80
 03/28/2023   06:10:25   (  -0.05, -75.32) (  -0.77, -71.97)  381.22                80