Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 6 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 06/18/2021   14:24:58   (  -0.04, -75.24) (  -0.34, -74.02)  139.82                80
 06/20/2021   02:46:38   (   0.04, -75.19) (  -0.73, -78.60)  388.91                80
 06/21/2021   02:23:20   (   0.04, -75.18) (   0.41, -73.61)  178.41                80
 06/22/2021   14:44:52   (  -0.04, -75.18) (   0.61, -78.17)  341.02                80
 06/23/2021   14:21:33   (  -0.04, -75.16) (  -0.47, -73.17)  226.41                80
 06/25/2021   02:43:14   (   0.04, -75.12) (  -0.53, -77.77)  301.86                80
 06/26/2021   02:19:55   (   0.05, -75.11) (   0.55, -72.77)  265.68                80
 06/27/2021   14:41:27   (  -0.05, -75.12) (   0.47, -77.33)  253.04                80
 06/28/2021   14:18:08   (  -0.06, -75.11) (  -0.67, -72.35)  315.17                80
 06/30/2021   02:39:49   (   0.05, -75.08) (  -0.38, -76.93)  211.23                80
 07/01/2021   02:16:30   (   0.06, -75.08) (   0.76, -71.95)  357.49                80