Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 19.  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)
 09/21/2017   22:25:35   (  70.16,-159.81) 09/21/2017   22:24:29  (  70.18,-159.85)    3.02                66
 09/21/2017   23:15:05   ( -70.05,   7.66) 09/21/2017   23:15:10  ( -70.04,   7.68)    0.65                 5
 09/22/2017   00:04:38   (  69.61, 174.70) 09/22/2017   00:05:48  (  69.60, 175.64)   36.43                70
 09/24/2017   14:42:05   (  70.12, -43.99) 09/24/2017   14:41:24  (  70.14, -44.02)    2.16                41
 09/24/2017   15:31:35   ( -70.01, 123.49) 09/24/2017   15:32:05  ( -70.00, 123.51)    1.70                30
 09/27/2017   06:08:57   ( -70.85, -94.68) 09/27/2017   06:07:49  ( -70.90, -96.78)   76.57                68
 09/27/2017   06:58:36   (  70.08,  71.83) 09/27/2017   06:58:20  (  70.10,  71.81)    1.88                16
 09/27/2017   07:48:06   ( -69.98,-120.68) 09/27/2017   07:49:01  ( -69.96,-120.66)    2.38                55
 09/29/2017   22:25:40   ( -70.15,  20.16) 09/29/2017   22:24:32  ( -70.18,  20.15)    3.14                68
 09/29/2017   23:15:07   (  70.04,-172.35) 09/29/2017   23:15:16  (  70.06,-172.37)    2.28                 9
 09/30/2017   00:04:41   ( -69.72,  -5.17) 09/30/2017   00:05:53  ( -69.71,  -4.52)   25.12                72
 10/02/2017   14:42:11   ( -70.11, 135.97) 10/02/2017   14:41:27  ( -70.09, 136.05)    3.53                44
 10/02/2017   15:31:38   (  69.99, -56.54) 10/02/2017   15:32:12  (  70.03, -56.54)    3.51                34