Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 9 15.  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)
 09/16/2016   06:58:38   ( -70.12,-108.11) 09/16/2016   06:58:03  ( -70.13,-108.05)    2.39                35
 09/16/2016   07:48:05   (  70.02,  59.39) 09/16/2016   07:48:47  (  70.00,  59.45)    3.41                42
 09/18/2016   22:25:33   (  70.46,-159.36) 09/18/2016   22:24:22  (  70.54,-160.25)   34.21                71
 09/18/2016   23:15:08   ( -70.08,   7.71) 09/18/2016   23:14:57  ( -70.10,   7.76)    2.85                11
 09/19/2016   00:04:35   (  69.97, 175.21) 09/19/2016   00:05:41  (  69.97, 175.26)    2.07                66
 09/21/2016   14:42:07   (  70.20, -43.87) 09/21/2016   14:41:07  (  70.20, -43.93)    2.18                60
 09/21/2016   15:31:37   ( -70.09, 123.61) 09/21/2016   15:31:48  ( -70.07, 123.58)    1.90                11
 09/21/2016   16:21:14   (  69.43, -69.66) 09/21/2016   16:22:22  (  69.42, -68.14)   59.39                68
 09/24/2016   06:58:37   (  70.14,  71.93) 09/24/2016   06:57:54  (  70.12,  71.99)    2.92                43
 09/24/2016   07:48:07   ( -70.04,-120.58) 09/24/2016   07:48:36  ( -70.05,-120.58)    1.47                29
 09/26/2016   23:15:05   (  70.14,-172.19) 09/26/2016   23:14:39  (  70.15,-172.25)    2.94                26
 09/27/2016   00:04:35   ( -70.04,  -4.70) 09/27/2016   00:05:20  ( -70.03,  -4.74)    1.51                45