Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 5 5.  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)
 05/06/2017   06:08:08   ( -70.61, -94.99) 05/06/2017   06:06:58  ( -70.65, -96.29)   48.43                70
 05/06/2017   06:57:43   (  70.07,  71.87) 05/06/2017   06:57:33  (  70.07,  71.94)    2.74                10
 05/06/2017   07:47:13   ( -69.96,-120.65) 05/06/2017   07:48:15  ( -69.98,-120.61)    2.48                62
 05/08/2017   22:24:46   ( -70.18,  20.26) 05/08/2017   22:23:43  ( -70.15,  20.27)    3.40                63
 05/08/2017   23:14:14   (  70.03,-172.32) 05/08/2017   23:14:27  (  70.04,-172.25)    3.20                13
 05/09/2017   00:03:51   ( -69.53,  -5.37) 05/09/2017   00:05:01  ( -69.53,  -4.17)   46.72                70
 05/11/2017   14:41:18   ( -70.13, 136.07) 05/11/2017   14:40:38  ( -70.13, 136.08)    0.90                40
 05/11/2017   15:30:45   (  70.03, -56.44) 05/11/2017   15:31:22  (  70.01, -56.44)    1.40                37
 05/14/2017   06:08:11   (  70.67,  85.10) 05/14/2017   06:07:01  (  70.72,  83.59)   55.90                70
 05/14/2017   06:57:50   ( -70.08,-108.14) 05/14/2017   06:57:33  ( -70.10,-108.11)    3.19                17
 05/14/2017   07:47:17   (  69.97,  59.35) 05/14/2017   07:48:17  (  69.99,  59.37)    2.93                60
 05/16/2017   22:24:51   (  70.17,-159.77) 05/16/2017   22:23:46  (  70.18,-159.77)    1.15                65
 05/16/2017   23:14:21   ( -70.07,   7.72) 05/16/2017   23:14:28  ( -70.08,   7.69)    2.06                 7
 05/17/2017   00:03:55   (  69.57, 174.68) 05/17/2017   00:05:05  (  69.60, 175.72)   40.76                70