Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 1.  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)
 07/03/2017   22:25:02   (  70.72,-158.97) 07/03/2017   22:23:53  (  70.75,-160.64)   61.64                69
 07/03/2017   23:14:41   ( -70.11,   7.77) 07/03/2017   23:14:24  ( -70.09,   7.72)    2.50                17
 07/04/2017   00:04:09   (  69.95, 175.20) 07/04/2017   00:05:08  (  69.97, 175.22)    2.02                59
 07/06/2017   14:41:41   (  70.14, -43.93) 07/06/2017   14:40:35  (  70.14, -43.90)    1.33                66
 07/06/2017   15:31:11   ( -70.03, 123.55) 07/06/2017   15:31:17  ( -70.06, 123.55)    2.87                 6
 07/06/2017   16:20:44   (  69.60, -69.41) 07/06/2017   16:21:54  (  69.57, -68.41)   39.19                70
 07/09/2017   06:58:11   (  70.11,  71.91) 07/09/2017   06:57:29  (  70.12,  71.92)    0.53                42
 07/09/2017   07:47:41   ( -70.01,-120.61) 07/09/2017   07:48:11  ( -70.02,-120.62)    1.91                30
 07/11/2017   22:25:01   ( -70.90,  21.32) 07/11/2017   22:23:53  ( -70.93,  19.08)   81.38                68
 07/11/2017   23:14:41   (  70.08,-172.25) 07/11/2017   23:14:23  (  70.09,-172.26)    0.72                18
 07/12/2017   00:04:11   ( -69.98,  -4.76) 07/12/2017   00:05:05  ( -69.99,  -4.80)    1.87                54
 07/14/2017   14:41:44   ( -70.16, 136.10) 07/14/2017   14:40:33  ( -70.17, 136.09)    0.72                71
 07/14/2017   15:31:11   (  70.05, -56.42) 07/14/2017   15:31:17  (  70.06, -56.45)    2.02                 6
 07/14/2017   16:20:44   ( -69.78, 110.85) 07/14/2017   16:21:56  ( -69.81, 111.26)   16.13                72