Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 9 14.  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)
 09/14/2018   06:08:33   ( -70.21, -95.60) 09/14/2018   06:07:26  ( -70.20, -95.62)    0.97                67
 09/14/2018   06:58:00   (  70.11,  71.91) 09/14/2018   06:58:10  (  70.09,  71.86)    2.56                10
 09/14/2018   07:47:35   ( -69.72,-121.01) 09/14/2018   07:48:46  ( -69.68,-120.20)   31.45                71
 09/16/2018   22:25:03   ( -70.19,  20.26) 09/16/2018   22:24:22  ( -70.17,  20.20)    3.42                41
 09/16/2018   23:14:31   (  70.04,-172.32) 09/16/2018   23:15:06  (  70.06,-172.32)    3.06                35
 09/19/2018   13:51:55   (  70.72, -30.71) 09/19/2018   13:50:46  (  70.77, -32.31)   58.84                69
 09/19/2018   14:41:34   ( -70.12, 136.04) 09/19/2018   14:41:18  ( -70.15, 136.01)    2.96                16
 09/19/2018   15:31:01   (  70.01, -56.47) 09/19/2018   15:32:02  (  70.04, -56.52)    3.28                61
 09/22/2018   06:08:33   (  70.20,  84.41) 09/22/2018   06:07:31  (  70.22,  84.34)    3.27                62
 09/22/2018   06:58:03   ( -70.10,-108.11) 09/22/2018   06:58:12  ( -70.07,-108.10)    3.42                 9
 09/22/2018   07:47:38   (  69.55,  58.77) 09/22/2018   07:48:48  (  69.54,  60.00)   47.69                70
 09/24/2018   22:25:03   (  70.18,-159.75) 09/24/2018   22:24:26  (  70.15,-159.78)    2.84                37
 09/24/2018   23:14:33   ( -70.08,   7.74) 09/24/2018   23:15:08  ( -70.05,   7.70)    3.30                35
 09/27/2018   13:51:58   ( -70.70, 149.25) 09/27/2018   13:50:48  ( -70.76, 147.71)   56.91                70
 09/27/2018   14:41:33   (  70.14, -43.92) 09/27/2018   14:41:22  (  70.13, -43.98)    2.57                11
 09/27/2018   15:31:04   ( -69.99, 123.50) 09/27/2018   15:32:03  ( -69.98, 123.58)    3.33                59