Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 5 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)
 05/14/2018   13:51:21   (  70.56, -31.10) 05/14/2018   13:50:10  (  70.61, -32.03)   34.86                71
 05/14/2018   14:40:56   ( -70.17, 135.97) 05/14/2018   14:40:46  ( -70.20, 135.94)    2.99                10
 05/14/2018   15:30:23   (  70.07, -56.53) 05/14/2018   15:31:30  (  70.09, -56.58)    2.67                67
 05/17/2018   06:07:54   (  70.24,  84.31) 05/17/2018   06:06:58  (  70.22,  84.36)    2.75                56
 05/17/2018   06:57:24   ( -70.13,-108.22) 05/17/2018   06:57:40  ( -70.12,-108.18)    1.66                16
 05/17/2018   07:47:04   (  69.30,  58.30) 05/17/2018   07:48:11  (  69.32,  60.31)   79.20                67
 05/19/2018   22:24:22   (  70.18,-159.89) 05/19/2018   22:23:53  (  70.20,-159.84)    2.75                29
 05/19/2018   23:13:51   ( -70.13,   7.67) 05/19/2018   23:14:35  ( -70.10,   7.63)    3.34                44
 05/22/2018   13:51:19   ( -70.40, 148.66) 05/22/2018   13:50:06  ( -70.45, 148.23)   16.61                73
 05/22/2018   14:40:48   (  70.18, -44.02) 05/22/2018   14:40:47  (  70.18, -44.04)    1.18                 1
 05/22/2018   15:30:18   ( -70.07, 123.47) 05/22/2018   15:31:29  ( -70.08, 123.43)    1.95                71
 05/25/2018   06:07:49   ( -70.23, -95.71) 05/25/2018   06:06:57  ( -70.22, -95.64)    2.87                52
 05/25/2018   06:57:16   (  70.11,  71.77) 05/25/2018   06:57:41  (  70.12,  71.83)    2.33                25