Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 3 22.  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)
 03/24/2017   14:41:32   ( -70.17, 136.01) 03/24/2017   14:40:33  ( -70.18, 136.03)    1.33                59
 03/24/2017   15:30:59   (  70.07, -56.49) 03/24/2017   15:31:17  (  70.07, -56.49)    0.46                18
 03/24/2017   16:20:38   ( -69.40, 110.23) 03/24/2017   16:21:47  ( -69.39, 111.82)   62.44                69
 03/27/2017   06:57:59   ( -70.11,-108.19) 03/27/2017   06:57:24  ( -70.13,-108.11)    3.28                35
 03/27/2017   07:47:26   (  70.01,  59.31) 03/27/2017   07:48:08  (  70.03,  59.35)    2.71                42
 03/29/2017   22:24:52   (  70.44,-159.47) 03/29/2017   22:23:40  (  70.50,-160.24)   29.29                72
 03/29/2017   23:14:26   ( -70.11,   7.69) 03/29/2017   23:14:17  ( -70.13,   7.66)    2.96                 9
 03/30/2017   00:03:53   (  70.00, 175.18) 03/30/2017   00:05:00  (  69.98, 175.20)    1.83                67
 04/01/2017   14:41:23   (  70.20, -43.93) 04/01/2017   14:40:27  (  70.20, -43.98)    1.86                56
 04/01/2017   15:30:53   ( -70.10, 123.55) 04/01/2017   15:31:09  ( -70.09, 123.51)    1.91                16
 04/01/2017   16:20:32   (  69.32, -69.86) 04/01/2017   16:21:40  (  69.31, -68.03)   72.01                68
 04/04/2017   06:57:50   (  70.18,  71.92) 04/04/2017   06:57:19  (  70.17,  71.86)    3.18                31
 04/04/2017   07:47:21   ( -70.03,-120.67) 04/04/2017   07:48:01  ( -70.05,-120.65)    2.98                40