Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 5 11.  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)
 05/11/2018   22:24:29   ( -70.19,  20.11) 05/11/2018   22:23:51  ( -70.19,  20.17)    2.48                38
 05/11/2018   23:13:56   (  70.09,-172.39) 05/11/2018   23:14:35  (  70.08,-172.35)    1.51                39
 05/14/2018   13:51:22   (  70.53, -31.14) 05/14/2018   13:50:10  (  70.58, -31.99)   32.00                72
 05/14/2018   14:40:57   ( -70.15, 135.93) 05/14/2018   14:40:46  ( -70.17, 135.98)    3.32                11
 05/14/2018   15:30:24   (  70.04, -56.57) 05/14/2018   15:31:30  (  70.06, -56.55)    2.44                66
 05/17/2018   06:07:53   (  70.27,  84.35) 05/17/2018   06:06:58  (  70.25,  84.31)    2.51                55
 05/17/2018   06:57:23   ( -70.16,-108.18) 05/17/2018   06:57:40  ( -70.15,-108.22)    1.76                17
 05/17/2018   07:47:03   (  69.33,  58.34) 05/17/2018   07:48:10  (  69.30,  60.35)   79.09                67
 05/19/2018   22:24:21   (  70.21,-159.85) 05/19/2018   22:23:53  (  70.23,-159.89)    2.26                28
 05/19/2018   23:13:51   ( -70.11,   7.63) 05/19/2018   23:14:35  ( -70.13,   7.58)    3.14                44
 05/22/2018   13:51:20   ( -70.38, 148.63) 05/22/2018   13:50:07  ( -70.47, 148.19)   19.40                73
 05/22/2018   14:40:49   (  70.16, -44.05) 05/22/2018   14:40:47  (  70.16, -44.01)    1.48                 2
 05/22/2018   15:30:19   ( -70.06, 123.44) 05/22/2018   15:31:29  ( -70.06, 123.46)    1.06                70