Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2015 3 24.  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)
 03/24/2015   18:17:27   ( -71.13,  83.35) 03/24/2015   18:16:16  ( -71.17,  82.15)   43.37                71
 03/24/2015   19:07:01   (  70.66,-109.74) 03/24/2015   19:06:52  (  70.65,-109.68)    2.44                 9
 03/24/2015   19:56:31   ( -70.54,  57.72) 03/24/2015   19:57:34  ( -70.55,  57.79)    3.41                63
 03/27/2015   10:34:01   ( -70.76,-161.35) 03/27/2015   10:33:00  ( -70.76,-161.40)    1.76                61
 03/27/2015   11:23:28   (  70.66,   6.14) 03/27/2015   11:23:44  (  70.67,   6.07)    2.55                16
 03/27/2015   12:13:07   ( -70.05, 172.89) 03/27/2015   12:14:16  ( -70.04, 174.37)   56.29                69
 03/30/2015   02:50:28   ( -70.74, -45.50) 03/30/2015   02:49:51  ( -70.73, -45.57)    2.92                37
 03/30/2015   03:39:56   (  70.58, 121.91) 03/30/2015   03:40:34  (  70.58, 121.98)    2.66                38
 04/01/2015   18:17:17   (  71.20, -96.53) 04/01/2015   18:16:07  (  71.23, -97.94)   50.66                70
 04/01/2015   19:06:55   ( -70.65,  70.25) 04/01/2015   19:06:40  ( -70.65,  70.33)    2.96                15
 04/01/2015   19:56:22   (  70.55,-122.26) 04/01/2015   19:57:24  (  70.56,-122.21)    2.56                62
 04/04/2015   10:33:51   (  70.76,  18.67) 04/04/2015   10:32:49  (  70.75,  18.64)    2.12                62
 04/04/2015   11:23:21   ( -70.65,-173.86) 04/04/2015   11:23:31  ( -70.64,-173.87)    1.34                10
 04/04/2015   12:12:57   (  70.05,  -7.10) 04/04/2015   12:14:06  (  70.07,  -5.67)   54.22                69
 04/07/2015   02:50:18   (  70.69, 134.44) 04/07/2015   02:49:39  (  70.69, 134.51)    2.69                39