Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 12 14.  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)
 12/16/2017   06:58:35   (  70.07,  71.77) 12/16/2017   06:58:08  (  70.09,  71.82)    2.95                27
 12/16/2017   07:48:04   ( -70.01,-120.68) 12/16/2017   07:48:50  ( -69.99,-120.72)    2.65                46
 12/18/2017   22:25:34   ( -70.33,  20.38) 12/18/2017   22:24:21  ( -70.40,  19.80)   23.20                73
 12/18/2017   23:15:04   (  70.06,-172.36) 12/18/2017   23:15:00  (  70.03,-172.33)    2.97                 4
 12/19/2017   00:04:34   ( -69.95,  -4.88) 12/19/2017   00:05:42  ( -69.93,  -4.86)    2.00                68
 12/21/2017   14:42:07   ( -70.15, 136.00) 12/21/2017   14:41:10  ( -70.14, 135.98)    2.21                57
 12/21/2017   15:31:34   (  70.05, -56.50) 12/21/2017   15:31:54  (  70.04, -56.56)    2.37                20
 12/21/2017   16:21:16   ( -69.28, 110.08) 12/21/2017   16:22:24  ( -69.30, 111.84)   69.12                68
 12/24/2017   06:58:38   ( -70.09,-108.22) 12/24/2017   06:58:03  ( -70.09,-108.17)    1.80                35
 12/24/2017   07:48:05   (  69.98,  59.27) 12/24/2017   07:48:47  (  69.99,  59.29)    1.45                42
 12/26/2017   22:25:32   (  70.50,-159.37) 12/26/2017   22:24:21  (  70.51,-160.38)   37.49                71
 12/26/2017   23:15:08   ( -70.07,   7.63) 12/26/2017   23:14:57  ( -70.09,   7.60)    2.64                11
 12/27/2017   00:04:35   (  69.96, 175.12) 12/27/2017   00:05:40  (  69.94, 175.13)    1.75                65