Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 20.  Predictions up to the next  14.0 days:

     Date     Time(LANDSAT-8) LANDSAT-8 Lat/Lon Date Time(NPP) NPP Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2018   22:24:58   ( -70.92,  21.27) 02/20/2018   22:23:50  ( -70.96,  19.01)   82.25                68
 02/20/2018   23:14:38   (  70.12,-172.29) 02/20/2018   23:14:20  (  70.09,-172.31)    2.46                18
 02/21/2018   00:04:08   ( -70.00,  -4.82) 02/21/2018   00:05:02  ( -70.02,  -4.88)    3.32                54
 02/23/2018   14:41:40   ( -70.16, 136.01) 02/23/2018   14:40:28  ( -70.17, 136.05)    2.22                72
 02/23/2018   15:31:07   (  70.05, -56.50) 02/23/2018   15:31:12  (  70.04, -56.45)    2.11                 5
 02/23/2018   16:20:39   ( -69.83, 110.83) 02/23/2018   16:21:51  ( -69.81, 111.22)   15.39                72
 02/26/2018   06:58:08   ( -70.15,-108.13) 02/26/2018   06:57:21  ( -70.17,-108.17)    3.12                47
 02/26/2018   07:47:35   (  70.04,  59.37) 02/26/2018   07:48:05  (  70.05,  59.32)    1.86                30
 02/28/2018   22:24:52   (  70.95,-158.68) 02/28/2018   22:23:45  (  70.99,-161.04)   85.65                67
 02/28/2018   23:14:35   ( -70.14,   7.74) 02/28/2018   23:14:12  ( -70.12,   7.68)    2.48                23
 03/01/2018   00:04:02   (  70.02, 175.22) 03/01/2018   00:04:56  (  70.00, 175.17)    3.01                54
 03/03/2018   14:41:34   (  70.17, -43.97) 03/03/2018   14:40:22  (  70.17, -43.92)    1.96                72
 03/03/2018   15:31:04   ( -70.06, 123.51) 03/03/2018   15:31:04  ( -70.08, 123.53)    1.74                 0
 03/03/2018   16:20:33   (  69.84, -69.16) 03/03/2018   16:21:45  (  69.80, -68.75)   16.15                72
 03/06/2018   06:58:02   (  70.14,  71.87) 03/06/2018   06:57:14  (  70.13,  71.92)    2.46                48
 03/06/2018   07:47:32   ( -70.04,-120.64) 03/06/2018   07:47:56  ( -70.04,-120.62)    0.82                24