Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 10 19.  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)
 10/19/2023   18:08:34   (  -0.05, -75.21) (   0.87, -71.11)  467.45                80
 10/21/2023   06:27:44   (   0.04, -75.21) (   0.30, -76.39)  135.04                80
 10/22/2023   06:11:42   (   0.04, -75.21) (  -0.74, -71.87)  380.64                80
 10/23/2023   18:31:01   (  -0.03, -75.22) (  -0.44, -77.19)  224.37                80
 10/24/2023   18:14:58   (  -0.03, -75.23) (   0.55, -72.66)  291.99                80
 10/26/2023   06:34:08   (   0.02, -75.23) (   0.61, -77.95)  308.76                80
 10/27/2023   06:18:04   (   0.03, -75.25) (  -0.38, -73.42)  208.09                80
 10/28/2023   18:37:24   (  -0.02, -75.27) (  -0.78, -78.74)  395.37                80
 10/29/2023   18:21:20   (  -0.03, -75.28) (   0.22, -74.21)  121.87                80
 10/31/2023   06:43:10   (   0.02, -75.30) (   0.98, -79.48)  477.72                80
 11/01/2023   06:21:47   (   0.02, -75.31) (  -0.08, -74.97)   39.69                80