Simultaneous Nadir Overpasses (SNOs) between GOES-16 and METOP-B
TLE Epoch: 2017 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2017   14:52:12   (   0.02, -77.65) (   0.70, -80.73)  351.30                80
 12/10/2017   14:34:07   (   0.03, -76.33) (  -0.11, -75.67)   74.70                80
 12/13/2017   02:29:37   (  -0.03, -72.98) (  -0.51, -75.12)  243.69                80
 12/14/2017   02:11:33   (  -0.03, -71.67) (   0.35, -70.07)  182.87                80
 12/16/2017   14:06:53   (   0.02, -68.38) (   0.29, -69.47)  125.36                80
 12/17/2017   13:48:50   (   0.02, -67.07) (  -0.57, -64.42)  301.64                80
 12/19/2017   02:05:03   (  -0.02, -65.04) (  -0.91, -68.92)  442.11                80
 12/20/2017   01:44:20   (  -0.03, -63.74) (  -0.04, -63.87)   14.47                80
 12/21/2017   01:26:15   (  -0.03, -62.43) (   0.76, -58.81)  413.22                80
 12/22/2017   13:42:19   (   0.04, -60.46) (   0.68, -63.27)  320.15                80