Simultaneous Nadir Overpasses (SNOs) between GOES-16 and NOAA-21
TLE Epoch: 2022 12 21.  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)
 12/21/2022   06:29:50   (  -0.02, -75.19) (   0.26, -76.40)  138.51                80
 12/22/2022   06:13:46   (  -0.02, -75.19) (  -0.75, -71.87)  377.62                80
 12/23/2022   18:33:02   (   0.02, -75.19) (  -0.45, -77.18)  227.04                80
 12/24/2022   18:16:57   (   0.01, -75.19) (   0.57, -72.65)  289.28                80
 12/26/2022   06:36:06   (  -0.01, -75.19) (   0.59, -77.93)  312.17                80
 12/27/2022   06:20:01   (  -0.01, -75.20) (  -0.43, -73.41)  204.49                80
 12/28/2022   18:39:18   (   0.02, -75.21) (  -0.76, -78.71)  398.96                80
 12/29/2022   18:23:13   (   0.02, -75.22) (   0.26, -74.19)  118.41                80
 12/31/2022   06:45:00   (  -0.02, -75.24) (   0.94, -79.46)  481.07                80
 01/01/2023   06:23:36   (  -0.01, -75.25) (  -0.08, -74.93)   36.68                80
 01/03/2023   18:26:48   (   0.00, -75.29) (  -0.07, -75.71)   47.34                80