Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 9 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)
 09/04/2021   15:22:36   (   0.05,-128.23) (  -0.92,-124.14)  467.44                80
 09/06/2021   03:52:29   (   0.02,-128.22) (  -0.85,-131.93)  423.80                80
 09/07/2021   03:40:43   (   0.01,-128.21) (  -0.18,-129.06)   96.88                80
 09/08/2021   03:31:38   (  -0.00,-128.20) (   0.49,-126.19)  229.91                80
 09/10/2021   15:49:48   (  -0.05,-128.15) (   0.61,-131.13)  338.74                80
 09/11/2021   15:38:01   (  -0.03,-128.14) (  -0.01,-128.24)   12.13                80
 09/12/2021   15:28:56   (  -0.02,-128.12) (  -0.68,-125.38)  314.12                80
 09/15/2021   03:47:04   (   0.07,-128.09) (  -0.44,-130.30)  252.35                80
 09/16/2021   03:37:58   (   0.06,-128.06) (   0.24,-127.43)   73.16                80
 09/17/2021   03:26:12   (   0.05,-128.04) (   0.85,-124.55)  398.60                80