Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 11 20.  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)
 11/22/2018   14:41:51   ( -70.15, 136.03) 11/22/2018   14:41:18  ( -70.14, 136.00)    1.37                33
 11/22/2018   15:31:18   (  70.04, -56.47) 11/22/2018   15:32:02  (  70.02, -56.51)    3.12                44
 11/25/2018   06:08:47   (  70.42,  84.67) 11/25/2018   06:07:35  (  70.43,  84.00)   24.88                72
 11/25/2018   06:58:21   ( -70.09,-108.17) 11/25/2018   06:58:12  ( -70.08,-108.13)    2.18                 9
 11/25/2018   07:47:48   (  69.98,  59.32) 11/25/2018   07:48:56  (  69.96,  59.36)    3.22                68
 11/27/2018   22:25:20   (  70.13,-159.86) 11/27/2018   22:24:24  (  70.15,-159.81)    3.13                56
 11/27/2018   23:14:49   ( -70.08,   7.70) 11/27/2018   23:15:06  ( -70.06,   7.65)    2.71                17
 11/28/2018   00:04:30   (  69.20, 174.14) 11/28/2018   00:05:36  (  69.20, 176.21)   81.86                66
 11/30/2018   14:41:49   (  70.12, -44.00) 11/30/2018   14:41:18  (  70.10, -43.95)    3.26                31
 11/30/2018   15:31:19   ( -70.01, 123.49) 11/30/2018   15:32:00  ( -70.00, 123.52)    1.97                41
 12/03/2018   06:08:47   ( -70.43, -95.31) 12/03/2018   06:07:35  ( -70.51, -96.14)   32.12                72
 12/03/2018   06:58:18   (  70.10,  71.86) 12/03/2018   06:58:13  (  70.09,  71.83)    1.57                 5
 12/03/2018   07:47:48   ( -70.00,-120.66) 12/03/2018   07:48:55  ( -69.99,-120.71)    2.01                67