Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 17.  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)
 07/19/2017   22:25:01   (  71.01,-158.50) 07/19/2017   22:23:55  (  71.09,-161.18)   97.08                66
 07/19/2017   23:14:46   ( -70.08,   7.74) 07/19/2017   23:14:20  ( -70.11,   7.73)    3.07                26
 07/20/2017   00:04:13   (  69.98, 175.24) 07/20/2017   00:05:04  (  70.00, 175.21)    2.17                51
 07/22/2017   14:41:46   (  70.22, -43.82) 07/22/2017   14:40:33  (  70.23, -44.01)    7.14                73
 07/22/2017   15:31:17   ( -70.06, 123.58) 07/22/2017   15:31:14  ( -70.08, 123.54)    3.28                 3
 07/22/2017   16:20:44   (  69.95, -68.92) 07/22/2017   16:21:57  (  69.92, -68.90)    3.15                73
 07/25/2017   06:58:17   (  70.13,  71.93) 07/25/2017   06:57:24  (  70.11,  71.96)    2.71                53
 07/25/2017   07:47:47   ( -70.03,-120.58) 07/25/2017   07:48:06  ( -70.01,-120.57)    2.38                19
 07/25/2017   08:37:29   (  69.09,  45.79) 07/25/2017   08:38:35  (  69.11,  48.05)   89.62                66
 07/27/2017   23:14:48   (  70.10,-172.24) 07/27/2017   23:14:18  (  70.10,-172.24)    0.43                30
 07/28/2017   00:04:18   ( -70.00,  -4.75) 07/28/2017   00:05:00  ( -69.99,  -4.76)    1.26                42
 07/30/2017   14:41:46   ( -70.51, 136.59) 07/30/2017   14:40:35  ( -70.55, 135.52)   39.69                71
 07/30/2017   15:31:19   (  70.06, -56.41) 07/30/2017   15:31:12  (  70.09, -56.44)    2.61                 7
 07/30/2017   16:20:49   ( -69.97, 111.08) 07/30/2017   16:21:54  ( -69.97, 111.04)    1.84                65