Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2014 5 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)
 05/22/2014   02:00:54   ( -71.26, -32.21) 05/22/2014   01:59:46  ( -71.32, -34.36)   77.30                68
 05/22/2014   02:50:33   (  70.51, 134.27) 05/22/2014   02:50:17  (  70.52, 134.31)    1.49                16
 05/22/2014   03:40:02   ( -70.45, -58.18) 05/22/2014   03:40:59  ( -70.44, -58.25)    2.80                57
 05/24/2014   18:17:34   ( -70.60,  82.65) 05/24/2014   18:16:31  ( -70.60,  82.63)    0.79                63
 05/24/2014   19:07:01   (  70.50,-109.86) 05/24/2014   19:07:15  (  70.47,-109.85)    2.60                14
 05/24/2014   19:56:39   ( -69.95,  56.98) 05/24/2014   19:57:48  ( -69.92,  58.33)   51.53                69
 05/27/2014   10:34:02   ( -70.57,-161.50) 05/27/2014   10:33:29  ( -70.56,-161.52)    1.81                33
 05/27/2014   11:23:30   (  70.41,   5.91) 05/27/2014   11:24:13  (  70.43,   5.99)    3.71                43
 05/30/2014   02:00:58   (  70.69, 146.94) 05/30/2014   01:59:46  (  70.71, 146.69)    9.57                72
 05/30/2014   02:50:29   ( -70.53, -45.67) 05/30/2014   02:50:26  ( -70.52, -45.68)    1.49                 3
 05/30/2014   03:39:57   (  70.37, 121.73) 05/30/2014   03:41:09  (  70.34, 121.90)    6.95                72
 06/01/2014   18:17:27   (  70.58, -97.34) 06/01/2014   18:16:42  (  70.57, -97.31)    1.30                45
 06/01/2014   19:06:57   ( -70.47,  70.13) 06/01/2014   19:07:24  ( -70.48,  70.15)    1.12                27
 06/04/2014   09:44:17   ( -71.21,-148.11) 06/04/2014   09:43:08  ( -71.28,-150.04)   69.26                69
 06/04/2014   10:33:54   (  70.56,  18.52) 06/04/2014   10:33:40  (  70.54,  18.51)    2.01                14
 06/04/2014   11:23:24   ( -70.45,-174.00) 06/04/2014   11:24:22  ( -70.44,-174.02)    0.93                58