Simultaneous Nadir Overpasses (SNOs) between GOES-15 and NOAA-19
TLE Epoch: 2018 5 18.  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)
 05/19/2018   13:15:34   (  -0.05,-135.31) (   0.85,-139.24)  448.03                80
 05/20/2018   13:04:00   (  -0.05,-135.29) (   0.24,-136.41)  129.06                80
 05/21/2018   12:55:08   (  -0.04,-135.27) (  -0.42,-133.60)  189.93                80
 05/24/2018   01:13:57   (   0.06,-135.22) (  -0.73,-138.70)  397.08                80
 05/25/2018   01:02:23   (   0.06,-135.20) (  -0.11,-135.88)   78.11                80
 05/26/2018   00:53:31   (   0.06,-135.17) (   0.57,-133.07)  240.74                80
 05/28/2018   13:12:04   (  -0.08,-135.09) (   0.60,-138.10)  344.08                80
 05/29/2018   13:00:31   (  -0.08,-135.06) (  -0.00,-135.28)   26.09                80
 05/30/2018   12:51:39   (  -0.08,-135.03) (  -0.67,-132.47)  292.06                80