Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2021 9 13.  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)
 09/13/2021   14:25:12   (   0.07, -75.21) (  -0.22, -73.94)  144.23                80
 09/15/2021   02:46:53   (  -0.09, -75.19) (  -0.83, -78.53)  380.57                80
 09/16/2021   02:23:33   (  -0.08, -75.19) (   0.28, -73.54)  188.60                80
 09/17/2021   14:45:04   (   0.10, -75.21) (   0.73, -78.10)  328.22                80
 09/18/2021   14:21:45   (   0.09, -75.22) (  -0.38, -73.10)  241.60                80
 09/20/2021   02:43:25   (  -0.10, -75.22) (  -0.67, -77.69)  281.59                80
 09/21/2021   02:20:07   (  -0.09, -75.24) (   0.50, -72.71)  288.71                80
 09/22/2021   14:41:37   (   0.10, -75.27) (   0.57, -77.25)  226.52                80
 09/23/2021   14:18:19   (   0.09, -75.29) (  -0.60, -72.27)  344.33                80
 09/25/2021   02:39:59   (  -0.11, -75.30) (  -0.45, -76.86)  177.47                80
 09/26/2021   02:16:39   (  -0.10, -75.32) (   0.67, -71.87)  393.51                80