Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 6 7.  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)
 06/09/2023   06:41:02   (  -0.03, -75.18) (   0.96, -79.48)  490.30                80
 06/10/2023   06:24:58   (  -0.02, -75.18) (  -0.07, -74.95)   26.37                80
 06/12/2023   18:25:30   (   0.02, -75.20) (  -0.08, -75.73)   60.49                80
 06/13/2023   18:09:24   (   0.02, -75.21) (   0.90, -71.19)  456.88                80
 06/15/2023   06:28:33   (  -0.03, -75.22) (   0.22, -76.48)  142.23                80
 06/16/2023   06:12:27   (  -0.03, -75.23) (  -0.76, -71.94)  375.31                80
 06/17/2023   18:31:43   (   0.04, -75.25) (  -0.42, -77.25)  227.77                80
 06/18/2023   18:15:39   (   0.04, -75.26) (   0.63, -72.72)  290.15                80
 06/20/2023   06:34:46   (  -0.05, -75.29) (   0.55, -77.99)  307.90                80
 06/21/2023   06:18:41   (  -0.04, -75.30) (  -0.44, -73.45)  210.40                80