Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 3 23.  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)
 03/24/2018   22:24:55   ( -70.24,  20.23) 03/24/2018   22:23:42  ( -70.29,  20.06)    8.45                73
 03/24/2018   23:14:23   (  70.08,-172.35) 03/24/2018   23:14:24  (  70.07,-172.29)    2.96                 1
 03/25/2018   00:03:53   ( -69.97,  -4.88) 03/25/2018   00:05:06  ( -69.98,  -4.84)    1.87                73
 03/27/2018   14:41:24   ( -70.19, 136.03) 03/27/2018   14:40:36  ( -70.17, 136.01)    1.73                48
 03/27/2018   15:30:51   (  70.08, -56.48) 03/27/2018   15:31:20  (  70.06, -56.51)    2.59                29
 03/30/2018   06:08:10   (  70.89,  85.32) 03/30/2018   06:07:02  (  70.94,  83.22)   76.53                68
 03/30/2018   06:57:52   ( -70.13,-108.18) 03/30/2018   06:57:30  ( -70.11,-108.13)    2.99                22
 03/30/2018   07:47:19   (  70.02,  59.31) 03/30/2018   07:48:14  (  70.00,  59.35)    2.54                55
 04/01/2018   22:24:50   (  70.22,-159.80) 04/01/2018   22:23:44  (  70.20,-159.82)    2.52                66
 04/01/2018   23:14:20   ( -70.12,   7.69) 04/01/2018   23:14:26  ( -70.10,   7.65)    2.48                 6
 04/02/2018   00:03:53   (  69.67, 174.71) 04/02/2018   00:05:04  (  69.68, 175.60)   34.14                71
 04/04/2018   14:41:19   (  70.15, -44.02) 04/04/2018   14:40:39  (  70.15, -43.97)    2.00                40
 04/04/2018   15:30:49   ( -70.05, 123.47) 04/04/2018   15:31:21  ( -70.04, 123.51)    2.00                32