Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 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)
 09/14/2018   06:08:33   ( -70.20, -95.61) 09/14/2018   06:07:26  ( -70.21, -95.63)    1.62                67
 09/14/2018   06:58:00   (  70.10,  71.89) 09/14/2018   06:58:10  (  70.10,  71.85)    1.74                10
 09/14/2018   07:47:35   ( -69.71,-121.02) 09/14/2018   07:48:46  ( -69.69,-120.21)   31.19                71
 09/16/2018   22:25:03   ( -70.18,  20.25) 09/16/2018   22:24:22  ( -70.18,  20.18)    2.39                41
 09/16/2018   23:14:31   (  70.02,-172.34) 09/16/2018   23:15:05  (  70.02,-172.26)    2.86                34
 09/19/2018   13:51:55   (  70.71, -30.73) 09/19/2018   13:50:46  (  70.78, -32.32)   58.96                69
 09/19/2018   14:41:34   ( -70.11, 136.02) 09/19/2018   14:41:17  ( -70.10, 136.08)    2.30                17
 09/19/2018   15:31:01   (  70.00, -56.49) 09/19/2018   15:32:01  (  70.00, -56.45)    1.44                60
 09/22/2018   06:08:34   (  70.19,  84.38) 09/22/2018   06:07:31  (  70.18,  84.41)    1.45                63
 09/22/2018   06:58:04   ( -70.09,-108.13) 09/22/2018   06:58:13  ( -70.07,-108.11)    1.38                 9
 09/22/2018   07:47:39   (  69.53,  58.75) 09/22/2018   07:48:48  (  69.49,  60.06)   51.33                69
 09/24/2018   22:25:03   (  70.16,-159.78) 09/24/2018   22:24:26  (  70.16,-159.78)    0.13                37
 09/24/2018   23:14:33   ( -70.06,   7.71) 09/24/2018   23:15:08  ( -70.05,   7.69)    1.02                35