Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 6 21.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(METOP-A) METOP-A Lat/Lon    Distance(km)  Time Diff(sec)
 06/23/2017   11:50:40   (  81.21,  43.70) 06/23/2017   11:50:09  (  81.21,  43.64)    1.10                31
 06/23/2017   12:40:06   ( -81.23,-148.38) 06/23/2017   12:40:48  ( -81.22,-148.46)    1.28                42
 06/26/2017   07:24:55   (  81.21, 110.13) 06/26/2017   07:24:29  (  81.21, 110.07)    0.99                26
 06/26/2017   08:14:21   ( -81.23, -81.92) 06/26/2017   08:15:08  ( -81.23, -81.98)    1.06                47
 06/29/2017   02:59:11   (  81.21, 176.54) 06/29/2017   02:58:50  (  81.21, 176.50)    0.78                21
 06/29/2017   03:48:37   ( -81.23, -15.49) 06/29/2017   03:49:29  ( -81.23, -15.52)    0.64                52
 07/01/2017   22:33:26   (  81.22,-116.71) 07/01/2017   22:33:10  (  81.22,-116.71)    0.40                16
 07/01/2017   23:22:53   ( -81.22,  50.92) 07/01/2017   23:23:50  ( -81.23,  50.92)    0.60                57
 07/04/2017   18:07:41   (  81.22, -50.36) 07/04/2017   18:07:30  (  81.22, -50.31)    0.85                11