Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 17.  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)
 09/19/2017   06:08:53   (  70.79,  85.26) 09/19/2017   06:07:45  (  70.85,  83.31)   71.49                68
 09/19/2017   06:58:34   ( -70.08,-108.17) 09/19/2017   06:58:14  ( -70.08,-108.15)    0.65                20
 09/19/2017   07:48:01   (  69.98,  59.34) 09/19/2017   07:48:58  (  69.96,  59.35)    2.30                57
 09/21/2017   22:25:35   (  70.16,-159.81) 09/21/2017   22:24:29  (  70.17,-159.84)    1.94                66
 09/21/2017   23:15:05   ( -70.05,   7.67) 09/21/2017   23:15:10  ( -70.03,   7.69)    2.15                 5
 09/22/2017   00:04:38   (  69.62, 174.71) 09/22/2017   00:05:48  (  69.59, 175.65)   36.66                70
 09/24/2017   14:42:05   (  70.12, -43.98) 09/24/2017   14:41:24  (  70.13, -44.01)    1.05                41
 09/24/2017   15:31:35   ( -70.02, 123.50) 09/24/2017   15:32:06  ( -70.04, 123.45)    3.20                31
 09/27/2017   06:08:57   ( -70.85, -94.68) 09/27/2017   06:07:49  ( -70.88, -96.76)   75.83                68
 09/27/2017   06:58:36   (  70.08,  71.83) 09/27/2017   06:58:20  (  70.09,  71.83)    0.61                16
 09/27/2017   07:48:06   ( -69.98,-120.68) 09/27/2017   07:49:02  ( -70.00,-120.72)    2.46                56
 09/29/2017   22:25:40   ( -70.15,  20.16) 09/29/2017   22:24:32  ( -70.16,  20.17)    1.55                68
 09/29/2017   23:15:07   (  70.04,-172.36) 09/29/2017   23:15:16  (  70.05,-172.34)    1.28                 9
 09/30/2017   00:04:42   ( -69.66,  -5.24) 09/30/2017   00:05:53  ( -69.69,  -4.49)   29.20                71