Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 12 12.  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)
 12/13/2018   22:25:17   (  70.13,-159.85) 12/13/2018   22:24:23  (  70.14,-159.81)    1.95                54
 12/13/2018   23:14:47   ( -70.02,   7.62) 12/13/2018   23:15:05  ( -70.05,   7.65)    3.02                18
 12/14/2018   00:04:28   (  69.14, 174.08) 12/14/2018   00:05:34  (  69.14, 176.28)   87.41                66
 12/16/2018   14:41:46   (  70.09, -44.03) 12/16/2018   14:41:17  (  70.10, -43.98)    2.51                29
 12/16/2018   15:31:16   ( -69.98, 123.45) 12/16/2018   15:31:59  ( -70.00, 123.49)    2.72                43
 12/19/2018   06:08:43   ( -70.37, -95.39) 12/19/2018   06:07:31  ( -70.42, -96.02)   24.47                72
 12/19/2018   06:58:14   (  70.04,  71.78) 12/19/2018   06:58:10  (  70.06,  71.85)    3.60                 4
 12/19/2018   07:47:44   ( -69.93,-120.73) 12/19/2018   07:48:52  ( -69.96,-120.68)    3.33                68
 12/21/2018   22:25:15   ( -70.15,  20.18) 12/21/2018   22:24:21  ( -70.17,  20.14)    2.85                54
 12/21/2018   23:14:42   (  70.04,-172.33) 12/21/2018   23:15:04  (  70.02,-172.32)    1.96                22
 12/22/2018   00:04:25   ( -69.22,  -5.81) 12/22/2018   00:05:32  ( -69.18,  -3.77)   80.75                67
 12/24/2018   14:41:44   ( -70.10, 135.99) 12/24/2018   14:41:14  ( -70.08, 136.04)    2.58                30
 12/24/2018   15:31:11   (  69.98, -56.53) 12/24/2018   15:31:58  (  69.99, -56.50)    1.54                47