Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 5 16.  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)
 05/16/2017   22:24:52   (  70.15,-159.80) 05/16/2017   22:23:46  (  70.17,-159.76)    2.88                66
 05/16/2017   23:14:21   ( -70.09,   7.75) 05/16/2017   23:14:28  ( -70.09,   7.68)    2.71                 7
 05/17/2017   00:03:55   (  69.60, 174.72) 05/17/2017   00:05:05  (  69.59, 175.73)   39.09                70
 05/19/2017   14:41:22   (  70.14, -43.93) 05/19/2017   14:40:40  (  70.15, -43.96)    1.69                42
 05/19/2017   15:30:52   ( -70.03, 123.55) 05/19/2017   15:31:21  ( -70.02, 123.56)    1.78                29
 05/22/2017   06:08:13   ( -70.95, -94.49) 05/22/2017   06:07:05  ( -70.99, -96.85)   85.56                68
 05/22/2017   06:57:54   (  70.08,  71.86) 05/22/2017   06:57:34  (  70.08,  71.91)    2.22                20
 05/22/2017   07:47:24   ( -69.97,-120.66) 05/22/2017   07:48:16  ( -70.00,-120.64)    3.28                52
 05/24/2017   22:24:58   ( -70.17,  20.23) 05/24/2017   22:23:45  ( -70.19,  20.21)    2.06                73
 05/24/2017   23:14:25   (  70.07,-172.28) 05/24/2017   23:14:29  (  70.07,-172.29)    0.81                 4
 05/25/2017   00:03:56   ( -69.91,  -4.87) 05/25/2017   00:05:09  ( -69.88,  -4.69)    7.67                73
 05/27/2017   14:41:29   ( -70.16, 136.08) 05/27/2017   14:40:39  ( -70.13, 136.08)    3.48                50
 05/27/2017   15:30:56   (  70.05, -56.43) 05/27/2017   15:31:24  (  70.06, -56.51)    3.33                28
 05/30/2017   06:08:15   (  71.06,  85.68) 05/30/2017   06:07:09  (  71.10,  82.96)   98.27                66
 05/30/2017   06:57:59   ( -70.14,-108.07) 05/30/2017   06:57:33  ( -70.12,-108.13)    3.39                26
 05/30/2017   07:47:27   (  69.97,  59.34) 05/30/2017   07:48:17  (  70.00,  59.36)    3.42                50