Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 12 27.  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)
 12/28/2018   01:01:29   (   0.13,-128.51) (   0.24,-128.07)   50.30                80
 12/29/2018   00:49:53   (   0.13,-128.50) (   0.89,-125.24)  372.18                80
 12/31/2018   13:10:59   (  -0.14,-128.58) (   0.26,-130.24)  190.25                80
 01/01/2019   13:02:04   (  -0.13,-128.56) (  -0.41,-127.41)  131.66                80
 01/02/2019   12:50:27   (  -0.13,-128.55) (  -1.02,-124.57)  453.49                80
 01/04/2019   01:23:24   (   0.13,-128.43) (  -0.83,-132.46)  460.51                80
 01/05/2019   01:11:49   (   0.12,-128.41) (  -0.17,-129.63)  139.24                80
 01/06/2019   00:57:34   (   0.12,-128.40) (   0.49,-126.80)  181.94                80
 01/08/2019   13:18:38   (  -0.11,-128.44) (   0.64,-131.80)  382.91                80
 01/09/2019   13:07:02   (  -0.11,-128.42) (   0.02,-128.96)   61.73                80