Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2016 12 28.  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)
 12/29/2016   06:08:57   ( -70.93, -94.59) 12/29/2016   06:07:50  ( -71.00, -96.97)   86.84                67
 12/29/2016   06:58:38   (  70.07,  71.77) 12/29/2016   06:58:18  (  70.05,  71.85)    3.59                20
 12/29/2016   07:48:08   ( -69.95,-120.75) 12/29/2016   07:49:00  ( -69.96,-120.69)    2.45                52
 12/31/2016   22:25:40   ( -70.16,  20.14) 12/31/2016   22:24:28  ( -70.14,  20.17)    2.60                72
 12/31/2016   23:15:07   (  70.06,-172.36) 12/31/2016   23:15:12  (  70.03,-172.35)    2.76                 5
 01/01/2017   00:04:39   ( -69.84,  -5.04) 01/01/2017   00:05:52  ( -69.83,  -4.73)   11.66                73
 01/03/2017   14:42:08   ( -70.15, 136.00) 01/03/2017   14:41:21  ( -70.13, 135.97)    3.04                47
 01/03/2017   15:31:35   (  70.04, -56.51) 01/03/2017   15:32:05  (  70.02, -56.56)    3.32                30
 01/06/2017   06:08:55   (  70.90,  85.36) 01/06/2017   06:07:47  (  70.95,  83.11)   82.01                68
 01/06/2017   06:58:38   ( -70.08,-108.22) 01/06/2017   06:58:14  ( -70.06,-108.16)    2.91                24
 01/06/2017   07:48:05   (  69.97,  59.27) 01/06/2017   07:48:58  (  69.95,  59.31)    2.16                53
 01/08/2017   22:25:37   (  70.16,-159.86) 01/08/2017   22:24:26  (  70.15,-159.84)    1.23                71
 01/08/2017   23:15:07   ( -70.06,   7.63) 01/08/2017   23:15:08  ( -70.05,   7.63)    0.58                 1
 01/09/2017   00:04:37   (  69.78, 174.88) 01/09/2017   00:05:49  (  69.79, 175.33)   17.39                72