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, -32.04)   34.98                71
 05/14/2018   14:40:56   ( -70.17, 135.96) 05/14/2018   14:40:45  ( -70.15, 136.01)    2.90                11
 05/14/2018   15:30:23   (  70.07, -56.54) 05/14/2018   15:31:30  (  70.09, -56.59)    3.20                67
 05/17/2018   06:07:54   (  70.23,  84.30) 05/17/2018   06:06:58  (  70.22,  84.35)    2.26                56
 05/17/2018   06:57:24   ( -70.12,-108.22) 05/17/2018   06:57:40  ( -70.13,-108.18)    1.61                16
 05/17/2018   07:47:04   (  69.30,  58.29) 05/17/2018   07:48:11  (  69.33,  60.31)   79.17                67
 05/19/2018   22:24:22   (  70.18,-159.90) 05/19/2018   22:23:53  (  70.20,-159.85)    3.22                29
 05/19/2018   23:13:51   ( -70.13,   7.66) 05/19/2018   23:14:35  ( -70.11,   7.62)    2.71                44
 05/22/2018   13:51:19   ( -70.40, 148.65) 05/22/2018   13:50:06  ( -70.45, 148.22)   17.11                73
 05/22/2018   14:40:48   (  70.18, -44.02) 05/22/2018   14:40:47  (  70.19, -44.05)    1.77                 1
 05/22/2018   15:30:18   ( -70.07, 123.46) 05/22/2018   15:31:29  ( -70.09, 123.42)    2.70                71
 05/25/2018   06:07:49   ( -70.23, -95.71) 05/25/2018   06:06:57  ( -70.23, -95.65)    2.33                52
 05/25/2018   06:57:16   (  70.11,  71.77) 05/25/2018   06:57:41  (  70.12,  71.82)    2.19                25