Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 1 18.  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)
 01/18/2021   03:52:51   (   0.00,-137.21) (  -0.93,-141.11)  446.60                80
 01/19/2021   03:41:08   (   0.00,-137.21) (  -0.25,-138.26)  119.86                80
 01/20/2021   03:32:06   (   0.00,-137.21) (   0.43,-135.40)  206.78                80
 01/22/2021   15:52:56   (  -0.00,-137.21) (   0.73,-140.32)  355.37                80
 01/23/2021   15:41:13   (  -0.00,-137.21) (   0.08,-137.46)   29.41                80
 01/24/2021   15:26:50   (  -0.00,-137.20) (  -0.62,-134.60)  296.64                80
 01/27/2021   03:50:30   (   0.00,-137.16) (  -0.53,-139.57)  274.61                80
 01/28/2021   03:36:07   (   0.00,-137.14) (   0.10,-136.70)   50.49                80
 01/29/2021   03:24:24   (   0.01,-137.13) (   0.78,-133.84)  375.40                80
 01/31/2021   15:47:52   (  -0.01,-137.10) (   0.41,-138.75)  189.66                80