Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2021 3 18.  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)
 03/18/2021   15:07:35   (   0.09,-128.45) (  -0.12,-127.60)   97.89                80
 03/19/2021   14:55:51   (   0.08,-128.45) (  -0.77,-124.73)  424.38                80
 03/21/2021   03:31:15   (  -0.10,-128.36) (  -1.06,-132.56)  478.25                80
 03/22/2021   03:19:31   (  -0.10,-128.36) (  -0.40,-129.69)  151.90                80
 03/23/2021   03:05:08   (  -0.09,-128.36) (   0.27,-126.83)  174.34                80
 03/25/2021   15:28:37   (   0.10,-128.42) (   0.85,-131.75)  379.96                80
 03/26/2021   15:16:53   (   0.10,-128.41) (   0.20,-128.89)   54.29                80
 03/27/2021   15:02:30   (   0.10,-128.40) (  -0.45,-126.02)  271.27                80
 03/30/2021   03:26:06   (  -0.11,-128.28) (  -0.76,-130.96)  307.02                80
 03/31/2021   03:14:23   (  -0.10,-128.27) (  -0.09,-128.10)   18.52                80
 04/01/2021   03:00:00   (  -0.10,-128.25) (   0.58,-125.24)  343.39                80