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   18:32:37   (   0.07, -75.20) (  -0.37, -77.31)  239.39                80
 03/14/2023   18:16:31   (   0.07, -75.20) (   0.63, -72.77)  277.00                80
 03/16/2023   06:38:18   (  -0.06, -75.19) (   0.56, -78.04)  323.99                80
 03/17/2023   06:16:52   (  -0.06, -75.19) (  -0.45, -73.51)  192.53                80
 03/18/2023   18:38:47   (   0.05, -75.20) (  -0.78, -78.80)  410.93                80
 03/19/2023   18:22:41   (   0.05, -75.20) (   0.24, -74.27)  106.28                80
 03/21/2023   06:44:27   (  -0.04, -75.21) (   0.93, -79.53)  492.93                80
 03/22/2023   06:23:02   (  -0.05, -75.22) (  -0.09, -75.00)   24.64                80
 03/24/2023   18:28:51   (   0.05, -75.25) (  -0.08, -75.77)   59.26                80
 03/25/2023   18:07:25   (   0.05, -75.27) (   0.96, -71.24)  458.95                80