Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 9 13.  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   06:08:34   ( -70.18, -95.64) 09/14/2018   06:07:26  ( -70.18, -95.58)    2.27                68
 09/14/2018   06:58:01   (  70.08,  71.86) 09/14/2018   06:58:10  (  70.07,  71.90)    1.80                 9
 09/14/2018   07:47:36   ( -69.69,-121.05) 09/14/2018   07:48:47  ( -69.71,-120.24)   31.08                71
 09/16/2018   22:25:04   ( -70.17,  20.22) 09/16/2018   22:24:22  ( -70.15,  20.23)    1.80                42
 09/16/2018   23:14:31   (  70.06,-172.28) 09/16/2018   23:15:06  (  70.04,-172.29)    2.16                35
 09/19/2018   13:51:55   (  70.69, -30.75) 09/19/2018   13:50:45  (  70.75, -32.27)   56.00                70
 09/19/2018   14:41:33   ( -70.15, 136.08) 09/19/2018   14:41:17  ( -70.12, 136.04)    2.97                16
 09/19/2018   15:31:00   (  70.04, -56.43) 09/19/2018   15:32:01  (  70.02, -56.48)    3.15                61
 09/22/2018   06:08:34   (  70.17,  84.36) 09/22/2018   06:07:31  (  70.20,  84.38)    3.16                63
 09/22/2018   06:58:04   ( -70.07,-108.15) 09/22/2018   06:58:13  ( -70.10,-108.15)    3.11                 9
 09/22/2018   07:47:39   (  69.52,  58.73) 09/22/2018   07:48:48  (  69.52,  60.03)   50.61                69
 09/24/2018   22:25:04   (  70.14,-159.80) 09/24/2018   22:24:26  (  70.13,-159.74)    2.76                38
 09/24/2018   23:14:34   ( -70.05,   7.69) 09/24/2018   23:15:08  ( -70.02,   7.73)    2.72                34