Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 7 16.  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)
 07/17/2017   06:58:14   ( -70.15,-108.05) 07/17/2017   06:57:26  ( -70.14,-108.10)    2.12                48
 07/17/2017   07:47:41   (  70.05,  59.46) 07/17/2017   07:48:10  (  70.03,  59.39)    3.61                29
 07/19/2017   22:25:01   (  71.01,-158.51) 07/19/2017   22:23:54  (  71.05,-161.11)   93.94                67
 07/19/2017   23:14:46   ( -70.08,   7.73) 07/19/2017   23:14:19  ( -70.07,   7.80)    2.89                27
 07/20/2017   00:04:13   (  69.97, 175.23) 07/20/2017   00:05:03  (  69.95, 175.27)    2.82                50
 07/22/2017   14:41:46   (  70.22, -43.82) 07/22/2017   14:40:33  (  70.24, -44.02)    7.96                73
 07/22/2017   15:31:17   ( -70.06, 123.58) 07/22/2017   15:31:13  ( -70.04, 123.61)    2.33                 4
 07/22/2017   16:20:44   (  69.95, -68.93) 07/22/2017   16:21:57  (  69.93, -68.92)    1.94                73
 07/25/2017   06:58:18   (  70.14,  71.94) 07/25/2017   06:57:25  (  70.12,  71.95)    2.29                53
 07/25/2017   07:47:48   ( -70.04,-120.57) 07/25/2017   07:48:07  ( -70.02,-120.58)    2.41                19
 07/25/2017   08:37:30   (  69.10,  45.80) 07/25/2017   08:38:36  (  69.12,  48.04)   88.72                66
 07/27/2017   23:14:48   (  70.12,-172.21) 07/27/2017   23:14:18  (  70.11,-172.25)    2.05                30
 07/28/2017   00:04:18   ( -70.02,  -4.72) 07/28/2017   00:05:00  ( -70.00,  -4.77)    3.05                42
 07/30/2017   14:41:46   ( -70.54, 136.63) 07/30/2017   14:40:35  ( -70.55, 135.51)   41.46                71
 07/30/2017   15:31:20   (  70.04, -56.45) 07/30/2017   15:31:11  (  70.04, -56.38)    2.79                 9
 07/30/2017   16:20:50   ( -69.94, 111.05) 07/30/2017   16:21:53  ( -69.93, 111.11)    2.86                63