Simultaneous Nadir Overpasses (SNOs) between GOES-15 and METOP-B
TLE Epoch: 2020 1 10.  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)
 01/11/2020   05:49:20   (   0.05,-128.42) (   0.75,-125.22)  364.57                80
 01/12/2020   18:10:52   (  -0.04,-128.40) (   0.25,-129.78)  156.39                80
 01/13/2020   17:47:33   (  -0.04,-128.41) (  -0.82,-124.78)  413.05                80
 01/15/2020   06:09:14   (   0.03,-128.43) (  -0.21,-129.37)  107.64                80
 01/16/2020   05:45:56   (   0.03,-128.44) (   0.92,-124.38)  461.56                80
 01/17/2020   18:07:28   (  -0.02,-128.42) (   0.08,-128.95)   60.12                80
 01/20/2020   06:05:51   (   0.02,-128.44) (   0.02,-128.55)   13.03                80
 01/22/2020   18:01:24   (  -0.02,-128.40) (  -0.10,-128.11)   33.17                80
 01/24/2020   06:23:05   (   0.02,-128.42) (  -0.93,-132.71)  488.84                80