Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 4 23.  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)
 04/23/2019   14:41:17   (  70.18, -43.99) 04/23/2019   14:40:34  (  70.19, -44.03)    1.96                43
 04/23/2019   15:30:47   ( -70.07, 123.49) 04/23/2019   15:31:15  ( -70.05, 123.51)    2.91                28
 04/26/2019   06:08:07   ( -70.88, -94.72) 04/26/2019   06:06:59  ( -70.93, -96.76)   74.54                68
 04/26/2019   06:57:46   (  70.11,  71.79) 04/26/2019   06:57:30  (  70.14,  71.81)    3.32                16
 04/26/2019   07:47:15   ( -70.06,-120.65) 04/26/2019   07:48:12  ( -70.04,-120.72)    3.36                57
 04/28/2019   22:24:47   ( -70.21,  20.16) 04/28/2019   22:23:42  ( -70.20,  20.18)    1.35                65
 04/28/2019   23:14:14   (  70.09,-172.36) 04/28/2019   23:14:26  (  70.09,-172.34)    0.48                12
 04/29/2019   00:03:51   ( -69.61,  -5.40) 04/29/2019   00:05:01  ( -69.62,  -4.32)   41.58                70
 05/01/2019   14:41:14   ( -70.19, 136.01) 05/01/2019   14:40:38  ( -70.20, 135.94)    2.87                36
 05/01/2019   15:30:41   (  70.07, -56.51) 05/01/2019   15:31:21  (  70.04, -56.51)    3.05                40
 05/04/2019   06:08:09   (  70.43,  84.61) 05/04/2019   06:06:57  (  70.52,  83.88)   28.81                72
 05/04/2019   06:57:42   ( -70.17,-108.14) 05/04/2019   06:57:34  ( -70.15,-108.22)    3.36                 8
 05/04/2019   07:47:10   (  69.99,  59.26) 05/04/2019   07:48:17  (  70.00,  59.33)    2.88                67
 05/06/2019   22:24:40   (  70.23,-159.80) 05/06/2019   22:23:48  (  70.21,-159.87)    3.20                52
 05/06/2019   23:14:11   ( -70.08,   7.62) 05/06/2019   23:14:30  ( -70.10,   7.62)    2.16                19