Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 21.  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)
 06/23/2017   06:58:08   (  70.12,  71.91) 06/23/2017   06:57:33  (  70.13,  71.88)    1.62                35
 06/23/2017   07:47:38   ( -70.01,-120.62) 06/23/2017   07:48:14  ( -70.00,-120.61)    0.51                36
 06/25/2017   22:25:02   ( -70.65,  20.92) 06/25/2017   22:23:52  ( -70.74,  19.37)   57.79                70
 06/25/2017   23:14:37   (  70.11,-172.22) 06/25/2017   23:14:26  (  70.09,-172.29)    3.31                11
 06/26/2017   00:04:08   ( -69.94,  -4.83) 06/26/2017   00:05:07  ( -69.96,  -4.77)    2.69                59
 06/28/2017   14:41:41   ( -70.15, 136.06) 06/28/2017   14:40:36  ( -70.17, 136.05)    3.03                65
 06/28/2017   15:31:08   (  70.04, -56.44) 06/28/2017   15:31:20  (  70.05, -56.46)    1.39                12
 06/28/2017   16:20:44   ( -69.60, 110.58) 06/28/2017   16:21:55  ( -69.60, 111.54)   36.99                71
 07/01/2017   06:58:11   ( -70.13,-108.08) 07/01/2017   06:57:30  ( -70.13,-108.11)    1.35                41
 07/01/2017   07:47:38   (  70.02,  59.41) 07/01/2017   07:48:14  (  70.02,  59.37)    1.62                36
 07/03/2017   22:25:02   (  70.71,-158.98) 07/03/2017   22:23:53  (  70.76,-160.66)   62.09                69
 07/03/2017   23:14:41   ( -70.11,   7.78) 07/03/2017   23:14:24  ( -70.09,   7.72)    3.07                17
 07/04/2017   00:04:08   (  70.00, 175.26) 07/04/2017   00:05:08  (  69.98, 175.20)    3.20                60