Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 16.  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)
 05/17/2018   00:57:01   (   0.03,-135.38) (   0.32,-134.21)  134.34                80
 05/18/2018   00:45:28   (   0.03,-135.36) (   0.93,-131.39)  453.78                80
 05/19/2018   13:15:33   (  -0.05,-135.31) (   0.88,-139.23)  448.18                80
 05/20/2018   13:04:01   (  -0.05,-135.29) (   0.22,-136.42)  129.20                80
 05/21/2018   12:55:08   (  -0.04,-135.27) (  -0.44,-133.61)  189.72                80
 05/24/2018   01:13:56   (   0.06,-135.22) (  -0.77,-138.69)  397.24                80
 05/25/2018   01:02:24   (   0.06,-135.20) (  -0.09,-135.88)   78.29                80
 05/26/2018   00:53:30   (   0.06,-135.17) (   0.53,-133.06)  240.51                80
 05/28/2018   13:12:05   (  -0.08,-135.08) (   0.59,-138.11)  344.56                80
 05/29/2018   13:00:31   (  -0.08,-135.05) (  -0.02,-135.28)   26.45                80
 05/30/2018   12:51:39   (  -0.08,-135.02) (  -0.68,-132.47)  291.51                80