Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 15.  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)
 05/16/2018   01:05:53   (   0.03,-135.40) (  -0.37,-137.02)  185.30                80
 05/17/2018   00:57:01   (   0.03,-135.38) (   0.30,-134.21)  134.25                80
 05/18/2018   00:45:29   (   0.03,-135.36) (   0.97,-131.39)  453.64                80
 05/19/2018   13:15:34   (  -0.05,-135.31) (   0.84,-139.24)  448.50                80
 05/20/2018   13:04:00   (  -0.05,-135.29) (   0.24,-136.42)  129.64                80
 05/21/2018   12:55:08   (  -0.04,-135.26) (  -0.42,-133.60)  189.22                80
 05/24/2018   01:13:57   (   0.06,-135.22) (  -0.73,-138.70)  397.89                80
 05/25/2018   01:02:23   (   0.06,-135.19) (  -0.11,-135.88)   79.03                80
 05/26/2018   00:53:31   (   0.06,-135.16) (   0.56,-133.07)  239.70                80
 05/28/2018   13:12:05   (  -0.08,-135.08) (   0.61,-138.10)  345.60                80
 05/29/2018   13:00:32   (  -0.08,-135.04) (  -0.05,-135.29)   27.71                80