Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 6 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  NOAA-19 Lat/Lon    Distance(km)  Time Diff(sec)
 06/05/2021   03:43:28   (   0.05,-128.43) (  -0.95,-132.63)  479.40                80
 06/06/2021   03:31:45   (   0.04,-128.44) (  -0.24,-129.77)  151.70                80
 06/07/2021   03:17:20   (   0.04,-128.44) (   0.40,-126.90)  175.88                80
 06/09/2021   15:38:06   (  -0.06,-128.52) (   0.69,-131.82)  375.85                80
 06/10/2021   15:26:22   (  -0.06,-128.52) (   0.02,-128.95)   48.58                80
 06/11/2021   15:17:17   (  -0.06,-128.52) (  -0.65,-126.08)  278.56                80
 06/14/2021   03:38:15   (   0.08,-128.43) (  -0.54,-131.04)  297.51                80
 06/15/2021   03:23:51   (   0.08,-128.43) (   0.11,-128.17)   28.96                80
 06/16/2021   03:12:07   (   0.08,-128.42) (   0.83,-125.31)  355.18                80