Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 3 10.  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)
 03/11/2019   22:25:03   ( -70.19,  20.18) 03/11/2019   22:23:50  ( -70.19,  20.17)    0.37                73
 03/11/2019   23:14:29   (  70.08,-172.33) 03/11/2019   23:14:33  (  70.06,-172.33)    2.36                 4
 03/12/2019   00:04:00   ( -69.92,  -4.93) 03/12/2019   00:05:13  ( -69.88,  -4.73)    8.35                73
 03/14/2019   14:41:31   ( -70.14, 135.99) 03/14/2019   14:40:42  ( -70.16, 136.00)    2.30                49
 03/14/2019   15:30:58   (  70.03, -56.52) 03/14/2019   15:31:26  (  70.03, -56.51)    0.88                28
 03/17/2019   06:08:16   (  70.95,  85.45) 03/17/2019   06:07:09  (  71.05,  83.01)   88.85                67
 03/17/2019   06:57:59   ( -70.14,-108.13) 03/17/2019   06:57:35  ( -70.13,-108.18)    2.04                24
 03/17/2019   07:47:26   (  70.02,  59.35) 03/17/2019   07:48:19  (  70.01,  59.31)    2.63                53
 03/19/2019   22:24:58   (  70.18,-159.82) 03/19/2019   22:23:46  (  70.18,-159.81)    0.54                72
 03/19/2019   23:14:28   ( -70.08,   7.66) 03/19/2019   23:14:28  ( -70.10,   7.64)    2.17                 0
 03/20/2019   00:03:57   (  69.85, 174.99) 03/20/2019   00:05:09  (  69.82, 175.37)   14.72                72
 03/22/2019   14:41:26   (  70.18, -43.95) 03/22/2019   14:40:39  (  70.16, -44.00)    2.25                47
 03/22/2019   15:30:55   ( -70.07, 123.54) 03/22/2019   15:31:20  ( -70.07, 123.46)    2.92                25