Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 22.  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)
 02/23/2018   14:41:40   ( -70.16, 136.02) 02/23/2018   14:40:28  ( -70.16, 136.06)    1.79                72
 02/23/2018   15:31:07   (  70.06, -56.48) 02/23/2018   15:31:13  (  70.09, -56.51)    2.87                 6
 02/23/2018   16:20:39   ( -69.84, 110.84) 02/23/2018   16:21:51  ( -69.80, 111.23)   15.85                72
 02/26/2018   06:58:07   ( -70.16,-108.12) 02/26/2018   06:57:20  ( -70.16,-108.16)    1.78                47
 02/26/2018   07:47:34   (  70.05,  59.38) 02/26/2018   07:48:04  (  70.04,  59.34)    1.99                30
 02/28/2018   22:24:52   (  70.96,-158.67) 02/28/2018   22:23:45  (  70.98,-161.02)   85.34                67
 02/28/2018   23:14:36   ( -70.09,   7.67) 02/28/2018   23:14:12  ( -70.11,   7.70)    3.05                24
 03/01/2018   00:04:03   (  69.98, 175.16) 03/01/2018   00:04:56  (  69.99, 175.19)    1.99                53
 03/03/2018   14:41:34   (  70.18, -43.96) 03/03/2018   14:40:22  (  70.15, -43.90)    3.31                72
 03/03/2018   15:31:04   ( -70.07, 123.52) 03/03/2018   15:31:04  ( -70.07, 123.55)    0.95                 0
 03/03/2018   16:20:34   (  69.79, -69.22) 03/03/2018   16:21:45  (  69.79, -68.73)   18.90                71
 03/06/2018   06:58:02   (  70.15,  71.88) 03/06/2018   06:57:15  (  70.17,  71.86)    2.08                47
 03/06/2018   07:47:32   ( -70.05,-120.63) 03/06/2018   07:47:56  ( -70.02,-120.61)    2.77                24