Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 7 11.  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)
 07/12/2023   06:22:04   (  -0.00, -75.20) (  -0.08, -74.93)   30.74                80
 07/14/2023   18:25:13   (   0.01, -75.21) (  -0.09, -75.70)   56.12                80
 07/15/2023   18:09:08   (   0.01, -75.21) (   0.92, -71.17)  460.99                80
 07/17/2023   06:30:54   (  -0.01, -75.22) (   0.27, -76.43)  138.68                80
 07/18/2023   06:09:29   (  -0.01, -75.22) (  -0.74, -71.90)  378.78                80
 07/19/2023   18:31:24   (   0.01, -75.24) (  -0.44, -77.20)  223.35                80
 07/20/2023   18:15:19   (   0.01, -75.26) (   0.58, -72.67)  294.64                80
 07/22/2023   06:37:05   (  -0.01, -75.27) (   0.61, -77.93)  303.59                80
 07/23/2023   06:15:39   (  -0.01, -75.29) (  -0.40, -73.40)  214.83                80
 07/24/2023   18:37:35   (   0.01, -75.32) (  -0.75, -78.71)  386.03                80