Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 1 20.  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)
 01/20/2023   18:10:37   (   0.03, -75.19) (   0.90, -71.20)  454.54                80
 01/22/2023   06:32:24   (  -0.04, -75.19) (   0.25, -76.47)  146.63                80
 01/23/2023   06:10:59   (  -0.04, -75.19) (  -0.75, -71.94)  370.31                80
 01/24/2023   18:32:54   (   0.04, -75.21) (  -0.44, -77.24)  232.23                80
 01/25/2023   18:16:50   (   0.04, -75.22) (   0.62, -72.72)  285.48                80
 01/27/2023   06:38:36   (  -0.04, -75.24) (   0.57, -77.99)  313.66                80
 01/28/2023   06:17:11   (  -0.04, -75.25) (  -0.44, -73.46)  204.42                80
 01/29/2023   18:39:06   (   0.03, -75.28) (  -0.74, -78.76)  396.66                80
 01/30/2023   18:23:00   (   0.03, -75.30) (   0.28, -74.23)  121.84                80
 02/01/2023   06:44:47   (  -0.02, -75.32) (   0.91, -79.50)  476.11                80
 02/02/2023   06:23:21   (   0.00, -75.34) (  -0.11, -74.97)   43.12                80