Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-19
TLE Epoch: 2021 12 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)
 12/18/2021   16:29:55   (  -0.04,-137.21) (   0.01,-137.49)   31.29                80
 12/19/2021   16:20:48   (  -0.04,-137.21) (  -0.61,-134.60)  296.67                80
 12/22/2021   04:41:35   (   0.03,-137.18) (  -0.50,-139.53)  267.87                80
 12/23/2021   04:27:07   (   0.03,-137.17) (   0.14,-136.64)   59.64                80
 12/24/2021   04:15:20   (   0.03,-137.16) (   0.79,-133.76)  387.03                80
 12/26/2021   16:36:05   (  -0.02,-137.14) (   0.31,-138.68)  174.65                80
 12/27/2021   16:26:57   (  -0.02,-137.13) (  -0.32,-135.80)  152.22                80
 12/28/2021   16:15:11   (  -0.02,-137.12) (  -1.02,-132.93)  478.87                80
 12/30/2021   04:47:41   (   0.02,-137.07) (  -0.85,-140.70)  414.37                80
 12/31/2021   04:33:15   (   0.01,-137.05) (  -0.15,-137.83)   88.21                80