Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 21.  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)
 03/22/2018   06:57:55   (  70.11,  71.81) 03/22/2018   06:57:29  (  70.10,  71.88)    2.94                26
 03/22/2018   07:47:25   ( -70.00,-120.72) 03/22/2018   07:48:11  ( -70.02,-120.67)    3.12                46
 03/24/2018   22:24:55   ( -70.22,  20.19) 03/24/2018   22:23:41  ( -70.26,  20.10)    6.02                74
 03/24/2018   23:14:22   (  70.11,-172.31) 03/24/2018   23:14:24  (  70.09,-172.33)    2.10                 2
 03/25/2018   00:03:53   ( -69.95,  -4.91) 03/25/2018   00:05:05  ( -69.95,  -4.79)    4.51                72
 03/27/2018   14:41:24   ( -70.16, 135.99) 03/27/2018   14:40:35  ( -70.14, 136.05)    3.05                49
 03/27/2018   15:30:51   (  70.05, -56.52) 03/27/2018   15:31:19  (  70.03, -56.47)    2.88                28
 03/30/2018   06:08:10   (  70.92,  85.36) 03/30/2018   06:07:03  (  70.97,  83.17)   79.78                67
 03/30/2018   06:57:52   ( -70.16,-108.14) 03/30/2018   06:57:31  ( -70.13,-108.17)    2.90                21
 03/30/2018   07:47:19   (  70.04,  59.35) 03/30/2018   07:48:15  (  70.03,  59.30)    2.63                56
 04/01/2018   22:24:51   (  70.20,-159.84) 04/01/2018   22:23:44  (  70.18,-159.79)    2.61                67
 04/01/2018   23:14:21   ( -70.09,   7.65) 04/01/2018   23:14:26  ( -70.07,   7.69)    2.65                 5
 04/02/2018   00:03:54   (  69.65, 174.68) 04/02/2018   00:05:04  (  69.65, 175.63)   36.81                70