Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2020 12 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 12/24/2020   03:47:07   (   0.04,-137.21) (  -0.59,-140.06)  324.95                80
 12/25/2020   03:35:24   (   0.04,-137.20) (   0.02,-137.19)    2.11                80
 12/26/2020   03:21:01   (   0.03,-137.20) (   0.70,-134.33)  326.78                80
 12/28/2020   15:41:57   (  -0.02,-137.18) (   0.48,-139.28)  240.44                80
 12/29/2020   15:32:54   (  -0.02,-137.16) (  -0.20,-136.42)   84.75                80
 12/30/2020   15:21:11   (  -0.01,-137.14) (  -0.82,-133.55)  409.74                80
 01/01/2021   03:51:08   (   0.01,-137.11) (  -1.00,-141.35)  485.12                80
 01/02/2021   03:39:26   (   0.00,-137.09) (  -0.33,-138.49)  160.71                80
 01/03/2021   03:30:23   (   0.00,-137.06) (   0.35,-135.64)  163.57                80
 01/04/2021   03:18:40   (   0.00,-137.04) (   0.97,-132.76)  487.69                80