Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 5 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)
 05/22/2015   10:33:24   (  71.27,  19.58) 05/22/2015   10:32:15  (  71.29,  17.72)   66.64                69
 05/22/2015   11:23:04   ( -70.61,-173.80) 05/22/2015   11:22:45  ( -70.59,-173.79)    2.66                19
 05/22/2015   12:12:31   (  70.51,  -6.32) 05/22/2015   12:13:30  (  70.51,  -6.36)    1.86                59
 05/25/2015   02:50:03   (  70.69, 134.56) 05/25/2015   02:48:57  (  70.68, 134.51)    2.45                66
 05/25/2015   03:39:34   ( -70.53, -58.04) 05/25/2015   03:39:38  ( -70.55, -57.96)    3.50                 4
 05/25/2015   04:29:06   (  70.15, 109.04) 05/25/2015   04:30:16  (  70.11, 110.04)   37.89                70
 05/27/2015   19:06:33   (  70.64,-109.63) 05/27/2015   19:05:51  (  70.65,-109.67)    1.90                42
 05/27/2015   19:56:03   ( -70.54,  57.85) 05/27/2015   19:56:32  ( -70.51,  57.86)    2.62                29
 05/30/2015   10:33:22   ( -71.44,-160.13) 05/30/2015   10:32:15  ( -71.46,-162.60)   87.50                67
 05/30/2015   11:23:03   (  70.57,   6.15) 05/30/2015   11:22:44  (  70.57,   6.22)    2.62                19
 05/30/2015   12:12:33   ( -70.46, 173.63) 05/30/2015   12:13:26  ( -70.48, 173.67)    2.53                53
 06/02/2015   02:50:05   ( -70.64, -45.50) 06/02/2015   02:48:54  ( -70.66, -45.47)    2.41                71
 06/02/2015   03:39:32   (  70.52, 121.98) 06/02/2015   03:39:38  (  70.54, 122.02)    2.67                 6
 06/02/2015   04:29:05   ( -70.26, -70.78) 06/02/2015   04:30:16  ( -70.24, -70.19)   22.17                71