Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-B
TLE Epoch: 2017 12 18.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(METOP-B) METOP-B Lat/Lon    Distance(km)  Time Diff(sec)
 12/18/2017   23:11:01   (  81.11,-128.20) 12/18/2017   23:09:48  (  81.11,-128.32)    2.11                73
 12/19/2017   00:00:27   ( -81.13,  39.74) 12/19/2017   00:00:27  ( -81.13,  39.75)    0.65                 0
 12/19/2017   00:49:52   (  81.16,-152.15) 12/19/2017   00:51:06  (  81.15,-152.30)    2.62                74
 12/21/2017   18:45:16   (  81.13, -61.45) 12/21/2017   18:44:09  (  81.13, -61.28)    2.89                67
 12/21/2017   19:34:42   ( -81.15, 106.51) 12/21/2017   19:34:49  ( -81.14, 106.46)    1.14                 7
 12/24/2017   14:19:31   (  81.12,   4.89) 12/24/2017   14:18:31  (  81.12,   4.99)    1.70                60
 12/24/2017   15:08:57   ( -81.14, 172.87) 12/24/2017   15:09:11  ( -81.14, 172.76)    1.86                14
 12/27/2017   09:53:47   (  81.11,  71.17) 12/27/2017   09:52:54  (  81.12,  71.23)    1.16                53
 12/27/2017   10:43:13   ( -81.14,-120.82) 12/27/2017   10:43:34  ( -81.14,-120.95)    2.20                21
 12/30/2017   05:28:02   (  81.12, 137.77) 12/30/2017   05:27:16  (  81.13, 137.82)    0.89                46