Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 1 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2020   06:05:50   (   0.02,-128.44) (  -0.01,-128.55)   12.32                80
 01/22/2020   18:01:23   (  -0.02,-128.41) (  -0.06,-128.11)   34.12                80
 01/24/2020   06:23:04   (   0.01,-128.42) (  -0.97,-132.70)  488.52                80
 01/25/2020   05:59:46   (   0.01,-128.42) (   0.17,-127.71)   79.92                80
 01/26/2020   18:21:18   (  -0.00,-128.39) (   0.84,-132.28)  442.46                80
 01/27/2020   17:57:59   (  -0.00,-128.38) (  -0.24,-127.28)  125.87                80
 01/29/2020   06:19:40   (  -0.01,-128.39) (  -0.79,-131.87)  396.97                80
 01/30/2020   05:56:21   (  -0.01,-128.38) (   0.35,-126.88)  171.26                80
 01/31/2020   18:17:53   (   0.01,-128.35) (   0.72,-131.43)  351.78                80