Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 24.  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)
 03/24/2018   22:24:54   ( -70.28,  20.29) 03/24/2018   22:23:42  ( -70.30,  20.04)    9.55                72
 03/24/2018   23:14:23   (  70.07,-172.37) 03/24/2018   23:14:24  (  70.08,-172.31)    2.46                 1
 03/25/2018   00:03:53   ( -69.96,  -4.90) 03/25/2018   00:05:06  ( -69.99,  -4.86)    3.92                73
 03/27/2018   14:41:24   ( -70.17, 136.01) 03/27/2018   14:40:36  ( -70.18, 135.99)    1.19                48
 03/27/2018   15:30:51   (  70.07, -56.50) 03/27/2018   15:31:20  (  70.07, -56.52)    1.02                29
 03/30/2018   06:08:11   (  70.88,  85.30) 03/30/2018   06:07:03  (  70.95,  83.20)   76.63                68
 03/30/2018   06:57:53   ( -70.11,-108.20) 03/30/2018   06:57:31  ( -70.12,-108.14)    2.25                22
 03/30/2018   07:47:19   (  70.00,  59.29) 03/30/2018   07:48:14  (  70.01,  59.33)    1.68                55
 04/01/2018   22:24:50   (  70.21,-159.82) 04/01/2018   22:23:44  (  70.21,-159.84)    0.66                66
 04/01/2018   23:14:20   ( -70.10,   7.66) 04/01/2018   23:14:26  ( -70.11,   7.64)    1.12                 6
 04/02/2018   00:03:53   (  69.66, 174.69) 04/02/2018   00:05:03  (  69.63, 175.66)   37.54                70
 04/04/2018   14:41:19   (  70.14, -44.04) 04/04/2018   14:40:39  (  70.15, -43.98)    2.90                40
 04/04/2018   15:30:49   ( -70.04, 123.45) 04/04/2018   15:31:21  ( -70.05, 123.50)    2.46                32