Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 29.  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)
 12/29/2022   18:23:13   (   0.04, -75.18) (   0.28, -74.19)  113.81                80
 12/31/2022   06:42:21   (  -0.04, -75.19) (   0.93, -79.46)  486.96                80
 01/01/2023   06:26:16   (  -0.03, -75.19) (  -0.10, -74.93)   29.83                80
 01/03/2023   18:26:48   (   0.02, -75.21) (  -0.06, -75.71)   56.94                80
 01/04/2023   18:10:43   (   0.01, -75.22) (   0.91, -71.18)  460.39                80
 01/06/2023   06:32:30   (  -0.01, -75.23) (   0.29, -76.45)  139.20                80
 01/07/2023   06:11:05   (  -0.00, -75.24) (  -0.74, -71.92)  378.29                80
 01/08/2023   18:33:02   (   0.00, -75.26) (  -0.43, -77.23)  224.49                80
 01/09/2023   18:16:57   (  -0.00, -75.28) (   0.60, -72.71)  293.46                80
 01/11/2023   06:38:44   (  -0.00, -75.30) (   0.59, -77.98)  304.81                80
 01/12/2023   06:17:20   (  -0.00, -75.32) (  -0.45, -73.45)  213.39                80