Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 3 9.  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)
 03/11/2017   06:58:10   ( -70.12,-108.18) 03/11/2017   06:57:37  ( -70.12,-108.15)    1.13                33
 03/11/2017   07:47:37   (  70.02,  59.32) 03/11/2017   07:48:21  (  70.01,  59.33)    1.35                44
 03/13/2017   22:25:05   (  70.37,-159.58) 03/13/2017   22:23:53  (  70.47,-160.23)   26.84                72
 03/13/2017   23:14:38   ( -70.09,   7.66) 03/13/2017   23:14:30  ( -70.11,   7.64)    2.19                 8
 03/14/2017   00:04:05   (  69.99, 175.15) 03/14/2017   00:05:14  (  70.00, 175.12)    2.16                69
 03/16/2017   14:41:36   (  70.17, -43.98) 03/16/2017   14:40:40  (  70.15, -43.95)    2.58                56
 03/16/2017   15:31:06   ( -70.06, 123.49) 03/16/2017   15:31:22  ( -70.05, 123.51)    1.37                16
 03/16/2017   16:20:46   (  69.23, -69.99) 03/16/2017   16:21:53  (  69.26, -68.01)   77.93                67
 03/19/2017   06:58:04   (  70.13,  71.84) 03/19/2017   06:57:33  (  70.15,  71.83)    2.06                31
 03/19/2017   07:47:34   ( -70.02,-120.68) 03/19/2017   07:48:15  ( -70.04,-120.70)    2.38                41
 03/21/2017   22:24:59   ( -70.47,  20.57) 03/21/2017   22:23:47  ( -70.56,  19.66)   35.32                72
 03/21/2017   23:14:31   (  70.08,-172.34) 03/21/2017   23:14:24  (  70.10,-172.31)    1.66                 7
 03/22/2017   00:04:01   ( -69.98,  -4.85) 03/22/2017   00:05:06  ( -69.99,  -4.83)    1.06                65