Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 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)
 02/23/2017   06:58:18   ( -70.14,-108.15) 02/23/2017   06:57:49  ( -70.13,-108.20)    2.32                29
 02/23/2017   07:47:46   (  69.98,  59.28) 02/23/2017   07:48:33  (  70.00,  59.31)    1.80                47
 02/25/2017   22:25:16   (  70.26,-159.73) 02/25/2017   22:24:03  (  70.34,-160.07)   15.30                73
 02/25/2017   23:14:47   ( -70.09,   7.66) 02/25/2017   23:14:42  ( -70.10,   7.62)    1.94                 5
 02/26/2017   00:04:14   (  69.99, 175.16) 02/26/2017   00:05:26  (  69.98, 175.12)    2.13                72
 02/28/2017   14:41:45   (  70.15, -44.01) 02/28/2017   14:40:52  (  70.16, -44.02)    1.37                53
 02/28/2017   15:31:15   ( -70.04, 123.47) 02/28/2017   15:31:33  ( -70.03, 123.51)    2.27                18
 02/28/2017   16:20:56   (  69.16, -70.08) 02/28/2017   16:22:03  (  69.16, -67.92)   85.43                67
 03/03/2017   06:58:13   (  70.14,  71.86) 03/03/2017   06:57:45  (  70.15,  71.79)    2.88                28
 03/03/2017   07:47:44   ( -69.98,-120.73) 03/03/2017   07:48:26  ( -70.01,-120.68)    3.14                42
 03/05/2017   22:25:11   ( -70.41,  20.48) 03/05/2017   22:23:59  ( -70.50,  19.70)   31.08                72
 03/05/2017   23:14:42   (  70.08,-172.35) 03/05/2017   23:14:37  (  70.08,-172.33)    0.60                 5
 03/06/2017   00:04:12   ( -69.98,  -4.86) 03/06/2017   00:05:19  ( -69.99,  -4.87)    1.13                67