Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 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)
 06/17/2017   22:25:02   (  70.45,-159.38) 06/17/2017   22:23:50  (  70.49,-160.24)   32.57                72
 06/17/2017   23:14:37   ( -70.06,   7.69) 06/17/2017   23:14:25  ( -70.05,   7.76)    2.87                12
 06/18/2017   00:04:04   (  69.96, 175.20) 06/18/2017   00:05:10  (  69.97, 175.19)    1.34                66
 06/20/2017   14:41:38   (  70.11, -43.98) 06/20/2017   14:40:38  (  70.13, -43.90)    3.67                60
 06/20/2017   15:31:07   ( -70.05, 123.57) 06/20/2017   15:31:20  ( -70.06, 123.53)    1.52                13
 06/20/2017   16:20:45   (  69.35, -69.76) 06/20/2017   16:21:53  (  69.34, -68.11)   64.64                68
 06/23/2017   06:58:08   (  70.10,  71.89) 06/23/2017   06:57:32  (  70.09,  71.93)    2.12                36
 06/23/2017   07:47:38   ( -69.99,-120.64) 06/23/2017   07:48:14  ( -70.01,-120.63)    2.09                36
 06/25/2017   22:25:02   ( -70.69,  20.98) 06/25/2017   22:23:52  ( -70.70,  19.44)   56.89                70
 06/25/2017   23:14:38   (  70.09,-172.25) 06/25/2017   23:14:27  (  70.11,-172.32)    3.13                11
 06/26/2017   00:04:08   ( -69.99,  -4.77) 06/26/2017   00:05:08  ( -69.97,  -4.79)    1.77                60
 06/28/2017   14:41:41   ( -70.13, 136.04) 06/28/2017   14:40:35  ( -70.14, 136.11)    2.51                66
 06/28/2017   15:31:08   (  70.02, -56.47) 06/28/2017   15:31:19  (  70.02, -56.41)    2.38                11
 06/28/2017   16:20:44   ( -69.59, 110.56) 06/28/2017   16:21:54  ( -69.56, 111.59)   39.98                70
 07/01/2017   06:58:11   ( -70.11,-108.10) 07/01/2017   06:57:29  ( -70.10,-108.06)    2.07                42
 07/01/2017   07:47:38   (  70.00,  59.38) 07/01/2017   07:48:13  (  69.99,  59.42)    1.82                35