Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 12 9.  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)
 12/11/2018   06:08:45   (  70.32,  84.54) 12/11/2018   06:07:32  (  70.36,  84.08)   17.81                73
 12/11/2018   06:58:17   ( -70.10,-108.15) 12/11/2018   06:58:11  ( -70.11,-108.22)    2.87                 6
 12/11/2018   07:47:45   (  69.94,  59.27) 12/11/2018   07:48:54  (  69.95,  59.34)    2.85                69
 12/13/2018   22:25:16   (  70.18,-159.79) 12/13/2018   22:24:23  (  70.16,-159.84)    2.86                53
 12/13/2018   23:14:46   ( -70.07,   7.69) 12/13/2018   23:15:05  ( -70.06,   7.63)    2.66                19
 12/14/2018   00:04:28   (  69.13, 174.06) 12/14/2018   00:05:34  (  69.15, 176.26)   87.01                66
 12/16/2018   14:41:46   (  70.09, -44.04) 12/16/2018   14:41:17  (  70.11, -44.00)    3.38                29
 12/16/2018   15:31:15   ( -70.04, 123.52) 12/16/2018   15:31:59  ( -70.01, 123.47)    3.40                44
 12/19/2018   06:08:44   ( -70.38, -95.38) 12/19/2018   06:07:32  ( -70.43, -96.03)   25.15                72
 12/19/2018   06:58:15   (  70.04,  71.79) 12/19/2018   06:58:11  (  70.07,  71.84)    3.35                 4
 12/19/2018   07:47:45   ( -69.94,-120.72) 12/19/2018   07:48:53  ( -69.96,-120.69)    2.78                68
 12/21/2018   22:25:15   ( -70.17,  20.20) 12/21/2018   22:24:21  ( -70.18,  20.13)    2.72                54
 12/21/2018   23:14:42   (  70.06,-172.31) 12/21/2018   23:15:04  (  70.03,-172.33)    3.22                22