Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 10 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)
 10/18/2018   22:25:17   ( -70.20,  20.23) 10/18/2018   22:24:24  ( -70.18,  20.25)    2.44                53
 10/18/2018   23:14:44   (  70.10,-172.27) 10/18/2018   23:15:09  (  70.11,-172.33)    2.34                25
 10/19/2018   00:04:29   ( -69.16,  -5.91) 10/19/2018   00:05:35  ( -69.18,  -3.66)   89.27                66
 10/21/2018   14:41:48   ( -70.15, 136.03) 10/21/2018   14:41:18  ( -70.14, 136.08)    1.89                30
 10/21/2018   15:31:15   (  70.04, -56.48) 10/21/2018   15:32:02  (  70.02, -56.43)    3.01                47
 10/24/2018   06:08:45   (  70.36,  84.58) 10/24/2018   06:07:33  (  70.40,  84.12)   17.79                72
 10/24/2018   06:58:18   ( -70.09,-108.18) 10/24/2018   06:58:11  ( -70.11,-108.10)    3.71                 7
 10/24/2018   07:47:45   (  69.98,  59.31) 10/24/2018   07:48:55  (  69.99,  59.39)    3.05                70
 10/26/2018   22:25:18   (  70.18,-159.80) 10/26/2018   22:24:23  (  70.16,-159.74)    3.33                55
 10/26/2018   23:14:48   ( -70.08,   7.69) 10/26/2018   23:15:05  ( -70.07,   7.71)    1.07                17
 10/27/2018   00:04:29   (  69.19, 174.13) 10/27/2018   00:05:35  (  69.21, 176.28)   85.06                66
 10/29/2018   14:41:48   (  70.17, -43.94) 10/29/2018   14:41:18  (  70.19, -44.01)    3.23                30
 10/29/2018   15:31:18   ( -70.07, 123.55) 10/29/2018   15:31:59  ( -70.04, 123.53)    2.56                41