Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 3 22.  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)
 03/22/2015   02:50:33   (  70.73, 134.49) 03/22/2015   02:50:02  (  70.72, 134.45)    2.10                31
 03/22/2015   03:40:03   ( -70.61, -58.06) 03/22/2015   03:40:44  ( -70.62, -58.08)    1.19                41
 03/24/2015   18:17:27   ( -71.11,  83.31) 03/24/2015   18:16:16  ( -71.18,  82.13)   43.01                71
 03/24/2015   19:07:00   (  70.68,-109.70) 03/24/2015   19:06:52  (  70.66,-109.70)    1.98                 8
 03/24/2015   19:56:30   ( -70.57,  57.76) 03/24/2015   19:57:34  ( -70.56,  57.78)    0.89                64
 03/27/2015   10:34:00   ( -70.76,-161.34) 03/27/2015   10:33:00  ( -70.77,-161.40)    2.15                60
 03/27/2015   11:23:27   (  70.66,   6.15) 03/27/2015   11:23:44  (  70.67,   6.07)    3.18                17
 03/27/2015   12:13:07   ( -70.00, 172.82) 03/27/2015   12:14:15  ( -69.99, 174.45)   62.00                68
 03/30/2015   02:50:27   ( -70.71, -45.54) 03/30/2015   02:49:51  ( -70.72, -45.56)    1.50                36
 03/30/2015   03:39:54   (  70.61, 121.95) 03/30/2015   03:40:35  (  70.63, 121.91)    2.94                41
 04/01/2015   18:17:18   (  71.07, -96.73) 04/01/2015   18:16:07  (  71.16, -97.82)   40.66                71
 04/01/2015   19:06:53   ( -70.69,  70.31) 04/01/2015   19:06:42  ( -70.68,  70.28)    1.18                11
 04/01/2015   19:56:20   (  70.58,-122.20) 04/01/2015   19:57:26  (  70.59,-122.26)    2.61                66
 04/04/2015   10:33:48   (  70.74,  18.65) 04/04/2015   10:32:50  (  70.76,  18.62)    2.44                58
 04/04/2015   11:23:18   ( -70.63,-173.88) 04/04/2015   11:23:32  ( -70.65,-173.89)    2.41                14
 04/04/2015   12:12:56   (  69.92,  -7.27) 04/04/2015   12:14:04  (  69.93,  -5.46)   69.19                68