Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 1 11.  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)
 01/11/2018   22:25:24   (  70.46,-159.42) 01/11/2018   22:24:13  (  70.57,-160.45)   39.83                71
 01/11/2018   23:14:59   ( -70.07,   7.64) 01/11/2018   23:14:47  ( -70.06,   7.67)    1.67                12
 01/12/2018   00:04:26   (  69.97, 175.15) 01/12/2018   00:05:31  (  69.94, 175.15)    3.41                65
 01/14/2018   14:41:58   (  70.12, -44.04) 01/14/2018   14:40:58  (  70.11, -43.96)    2.83                60
 01/14/2018   15:31:28   ( -70.01, 123.43) 01/14/2018   15:31:40  ( -70.03, 123.49)    2.99                12
 01/14/2018   16:21:05   (  69.35, -69.81) 01/14/2018   16:22:13  (  69.33, -68.18)   64.36                68
 01/17/2018   06:58:25   (  70.10,  71.82) 01/17/2018   06:57:50  (  70.09,  71.86)    2.44                35
 01/17/2018   07:47:55   ( -69.99,-120.70) 01/17/2018   07:48:32  ( -70.00,-120.69)    0.60                37
 01/19/2018   22:25:19   ( -70.57,  20.74) 01/19/2018   22:24:08  ( -70.64,  19.45)   48.47                71
 01/19/2018   23:14:53   (  70.08,-172.32) 01/19/2018   23:14:43  (  70.06,-172.33)    2.71                10
 01/20/2018   00:04:23   ( -69.97,  -4.84) 01/20/2018   00:05:25  ( -69.97,  -4.87)    1.24                62
 01/22/2018   14:41:54   ( -70.17, 136.03) 01/22/2018   14:40:52  ( -70.14, 136.01)    2.90                62
 01/22/2018   15:31:21   (  70.06, -56.48) 01/22/2018   15:31:36  (  70.03, -56.51)    2.94                15
 01/22/2018   16:21:00   ( -69.46, 110.33) 01/22/2018   16:22:09  ( -69.46, 111.65)   51.42                69
 01/25/2018   06:58:22   ( -70.14,-108.12) 01/25/2018   06:57:45  ( -70.12,-108.17)    3.19                37
 01/25/2018   07:47:49   (  70.03,  59.36) 01/25/2018   07:48:29  (  70.01,  59.30)    3.06                40