Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 5 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)
 05/13/2016   21:35:28   ( -70.33,  32.81) 05/13/2016   21:34:16  ( -70.32,  32.71)    4.09                72
 05/13/2016   22:24:56   (  70.17,-159.77) 05/13/2016   22:25:00  (  70.19,-159.79)    1.92                 4
 05/13/2016   23:14:27   ( -70.01,   7.62) 05/13/2016   23:15:40  ( -70.01,   7.81)    7.08                73
 05/16/2016   13:52:00   ( -70.25, 148.57) 05/16/2016   13:51:10  ( -70.25, 148.58)    0.50                50
 05/16/2016   14:41:27   (  70.14, -43.94) 05/16/2016   14:41:54  (  70.12, -43.92)    2.10                27
 05/16/2016   15:31:13   ( -69.15, 122.34) 05/16/2016   15:32:19  ( -69.14, 124.83)   98.36                66
 05/19/2016   05:18:46   (  71.14,  98.16) 05/19/2016   05:17:40  (  71.21,  95.45)   97.70                66
 05/19/2016   06:08:31   ( -70.21, -95.61) 05/19/2016   06:08:05  ( -70.24, -95.64)    3.20                26
 05/19/2016   06:57:58   (  70.10,  71.88) 05/19/2016   06:58:49  (  70.12,  71.86)    1.66                51
 05/21/2016   21:35:31   (  70.33,-147.19) 05/21/2016   21:34:18  (  70.32,-147.31)    4.62                73
 05/21/2016   22:25:02   ( -70.17,  20.21) 05/21/2016   22:24:59  ( -70.18,  20.22)    1.10                 3
 05/21/2016   23:14:30   (  70.00,-172.38) 05/21/2016   23:15:42  (  70.01,-172.21)    6.54                72
 05/24/2016   13:52:01   (  70.28, -31.39) 05/24/2016   13:51:11  (  70.27, -31.46)    3.11                50
 05/24/2016   14:41:32   ( -70.12, 136.03) 05/24/2016   14:41:52  ( -70.13, 136.07)    1.76                20