Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 12 30.  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)
 01/01/2018   06:58:33   (  70.10,  71.81) 01/01/2018   06:58:01  (  70.13,  71.77)    3.31                32
 01/01/2018   07:48:03   ( -69.98,-120.72) 01/01/2018   07:48:42  ( -69.98,-120.69)    1.49                39
 01/03/2018   22:25:27   ( -70.54,  20.68) 01/03/2018   22:24:16  ( -70.56,  19.55)   41.84                71
 01/03/2018   23:15:01   (  70.05,-172.38) 01/03/2018   23:14:52  (  70.03,-172.31)    3.07                 9
 01/04/2018   00:04:31   ( -69.94,  -4.90) 01/04/2018   00:05:34  ( -69.94,  -4.85)    2.03                63
 01/06/2018   14:42:02   ( -70.16, 136.01) 01/06/2018   14:41:02  ( -70.15, 135.97)    1.79                60
 01/06/2018   15:31:29   (  70.05, -56.50) 01/06/2018   15:31:46  (  70.05, -56.56)    2.62                17
 01/06/2018   16:21:09   ( -69.39, 110.23) 01/06/2018   16:22:18  ( -69.42, 111.68)   56.60                69
 01/09/2018   06:58:31   ( -70.11,-108.18) 01/09/2018   06:57:55  ( -70.12,-108.20)    1.69                36
 01/09/2018   07:47:58   (  69.99,  59.31) 01/09/2018   07:48:39  (  70.02,  59.26)    2.79                41
 01/11/2018   22:25:24   (  70.48,-159.39) 01/11/2018   22:24:13  (  70.56,-160.43)   39.44                71
 01/11/2018   23:14:59   ( -70.10,   7.69) 01/11/2018   23:14:48  ( -70.09,   7.62)    3.13                11
 01/12/2018   00:04:27   (  69.93, 175.10) 01/12/2018   00:05:31  (  69.93, 175.17)    2.59                64