Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 19.  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)
 06/20/2017   14:41:37   (  70.16, -43.92) 06/20/2017   14:40:38  (  70.14, -43.92)    1.22                59
 06/20/2017   15:31:07   ( -70.04, 123.55) 06/20/2017   15:31:19  ( -70.02, 123.59)    2.78                12
 06/20/2017   16:20:45   (  69.33, -69.77) 06/20/2017   16:21:53  (  69.35, -68.13)   64.65                68
 06/23/2017   06:58:08   (  70.09,  71.87) 06/23/2017   06:57:32  (  70.10,  71.92)    2.19                36
 06/23/2017   07:47:37   ( -70.03,-120.58) 06/23/2017   07:48:14  ( -70.03,-120.65)    2.78                37
 06/25/2017   22:25:02   ( -70.67,  20.96) 06/25/2017   22:23:52  ( -70.71,  19.42)   56.76                70
 06/25/2017   23:14:38   (  70.08,-172.27) 06/25/2017   23:14:26  (  70.06,-172.25)    1.94                12
 06/26/2017   00:04:08   ( -69.97,  -4.79) 06/26/2017   00:05:08  ( -69.98,  -4.81)    1.40                60
 06/28/2017   14:41:41   ( -70.17, 136.10) 06/28/2017   14:40:36  ( -70.14, 136.10)    3.02                65
 06/28/2017   15:31:09   (  70.01, -56.49) 06/28/2017   15:31:20  (  70.02, -56.41)    3.50                11
 06/28/2017   16:20:45   ( -69.57, 110.54) 06/28/2017   16:21:55  ( -69.57, 111.58)   40.37                70
 07/01/2017   06:58:11   ( -70.10,-108.13) 07/01/2017   06:57:29  ( -70.10,-108.07)    2.31                42
 07/01/2017   07:47:38   (  69.98,  59.36) 07/01/2017   07:48:13  (  69.99,  59.42)    2.15                35