Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and METOP-A
TLE Epoch: 2017 12 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)
 12/23/2017   08:39:29   (  81.28,  92.49) 12/23/2017   08:38:24  (  81.28,  92.56)    1.23                65
 12/23/2017   09:28:56   ( -81.28, -99.94) 12/23/2017   09:29:05  ( -81.28,-100.02)    1.47                 9
 12/26/2017   04:13:45   (  81.28, 158.82) 12/26/2017   04:12:44  (  81.27, 158.64)    3.17                61
 12/26/2017   05:03:11   ( -81.29, -33.21) 12/26/2017   05:03:23  ( -81.29, -33.15)    1.03                12
 12/28/2017   23:48:01   (  81.27,-134.89) 12/28/2017   23:47:03  (  81.27,-134.91)    0.49                58
 12/29/2017   00:37:27   ( -81.29,  33.10) 12/29/2017   00:37:43  ( -81.28,  32.92)    3.06                16
 12/31/2017   19:22:15   (  81.28, -68.27) 12/31/2017   19:21:20  (  81.28, -68.10)    2.96                55
 12/31/2017   20:11:42   ( -81.28,  99.37) 12/31/2017   20:12:01  ( -81.28,  99.36)    0.62                19
 01/03/2018   14:56:30   (  81.29,  -1.69) 01/03/2018   14:55:39  (  81.28,  -1.69)    0.62                51