Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 12.  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)
 09/13/2017   22:25:33   ( -70.14,  20.17) 09/13/2017   22:24:22  ( -70.14,  20.24)    2.62                71
 09/13/2017   23:15:00   (  70.04,-172.33) 09/13/2017   23:15:07  (  70.07,-172.35)    3.38                 7
 09/14/2017   00:04:33   ( -69.76,  -5.09) 09/14/2017   00:05:45  ( -69.77,  -4.59)   19.31                72
 09/16/2017   14:42:01   ( -70.13, 136.04) 09/16/2017   14:41:18  ( -70.14, 136.00)    1.57                43
 09/16/2017   15:31:28   (  70.02, -56.47) 09/16/2017   15:32:02  (  70.02, -56.51)    1.76                34
 09/19/2017   06:08:52   (  70.66,  85.06) 09/19/2017   06:07:42  (  70.70,  83.55)   56.05                70
 09/19/2017   06:58:31   ( -70.06,-108.18) 09/19/2017   06:58:14  ( -70.09,-108.16)    3.42                17
 09/19/2017   07:47:58   (  69.95,  59.31) 09/19/2017   07:48:58  (  69.97,  59.33)    2.39                60
 09/21/2017   22:25:30   (  70.14,-159.81) 09/21/2017   22:24:28  (  70.13,-159.78)    1.59                62
 09/21/2017   23:15:00   ( -70.04,   7.67) 09/21/2017   23:15:10  ( -70.04,   7.68)    0.70                10
 09/22/2017   00:04:36   (  69.43, 174.48) 09/22/2017   00:05:45  (  69.45, 175.87)   54.27                69
 09/24/2017   14:41:59   (  70.11, -43.97) 09/24/2017   14:41:24  (  70.09, -43.95)    2.52                35
 09/24/2017   15:31:29   ( -70.01, 123.51) 09/24/2017   15:32:06  ( -70.00, 123.51)    1.25                37