Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 3 15.  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)
 03/16/2017   14:41:36   (  70.18, -43.97) 03/16/2017   14:40:41  (  70.19, -44.02)    2.25                55
 03/16/2017   15:31:06   ( -70.06, 123.49) 03/16/2017   15:31:22  ( -70.05, 123.52)    1.65                16
 03/16/2017   16:20:46   (  69.24, -69.98) 03/16/2017   16:21:53  (  69.25, -68.00)   77.97                67
 03/19/2017   06:58:03   (  70.14,  71.85) 03/19/2017   06:57:32  (  70.14,  71.84)    0.25                31
 03/19/2017   07:47:33   ( -70.02,-120.68) 03/19/2017   07:48:14  ( -70.04,-120.70)    2.29                41
 03/21/2017   22:24:59   ( -70.47,  20.57) 03/21/2017   22:23:47  ( -70.56,  19.65)   35.21                72
 03/21/2017   23:14:31   (  70.09,-172.34) 03/21/2017   23:14:24  (  70.09,-172.30)    1.51                 7
 03/22/2017   00:04:01   ( -69.98,  -4.86) 03/22/2017   00:05:06  ( -69.99,  -4.83)    1.30                65
 03/24/2017   14:41:31   ( -70.21, 136.06) 03/24/2017   14:40:33  ( -70.19, 136.02)    2.56                58
 03/24/2017   15:30:58   (  70.09, -56.45) 03/24/2017   15:31:17  (  70.09, -56.52)    2.80                19
 03/24/2017   16:20:39   ( -69.38, 110.21) 03/24/2017   16:21:48  ( -69.40, 111.81)   62.68                69
 03/27/2017   06:57:59   ( -70.15,-108.13) 03/27/2017   06:57:25  ( -70.14,-108.12)    1.79                34
 03/27/2017   07:47:26   (  70.04,  59.35) 03/27/2017   07:48:09  (  70.04,  59.33)    1.01                43