Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2023 4 1.  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)
 04/01/2023   06:38:00   (  -0.05, -75.20) (   0.57, -78.00)  318.47                80
 04/02/2023   06:16:34   (  -0.05, -75.21) (  -0.42, -73.46)  199.01                80
 04/03/2023   18:41:08   (   0.04, -75.22) (  -0.75, -78.76)  403.86                80
 04/04/2023   18:19:42   (   0.05, -75.23) (   0.30, -74.23)  114.14                80
 04/06/2023   06:44:08   (  -0.04, -75.25) (   0.89, -79.49)  483.19                80
 04/07/2023   06:22:41   (  -0.05, -75.26) (  -0.11, -74.95)   34.91                80
 04/09/2023   18:28:29   (   0.04, -75.28) (  -0.04, -75.72)   49.09                80
 04/10/2023   18:07:03   (   0.04, -75.30) (   0.97, -71.18)  469.22                80
 04/12/2023   06:31:28   (  -0.04, -75.32) (   0.20, -76.44)  127.69                80
 04/13/2023   06:10:01   (  -0.04, -75.33) (  -0.81, -71.91)  390.73                80
 04/14/2023   18:34:35   (   0.03, -75.35) (  -0.38, -77.20)  210.78                80