Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 6 10.  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)
 06/12/2017   14:41:36   ( -70.14, 136.04) 06/12/2017   14:40:37  ( -70.12, 136.11)    3.31                59
 06/12/2017   15:31:03   (  70.04, -56.45) 06/12/2017   15:31:22  (  70.04, -56.46)    0.27                19
 06/12/2017   16:20:44   ( -69.32, 110.20) 06/12/2017   16:21:52  ( -69.33, 111.90)   66.99                68
 06/15/2017   06:58:06   ( -70.14,-108.07) 06/15/2017   06:57:32  ( -70.12,-108.11)    3.04                34
 06/15/2017   07:47:34   (  69.98,  59.35) 06/15/2017   07:48:16  (  69.99,  59.39)    1.57                42
 06/17/2017   22:25:02   (  70.47,-159.34) 06/17/2017   22:23:51  (  70.52,-160.29)   35.52                71
 06/17/2017   23:14:37   ( -70.09,   7.74) 06/17/2017   23:14:26  ( -70.07,   7.73)    1.99                11
 06/18/2017   00:04:04   (  69.98, 175.23) 06/18/2017   00:05:11  (  70.00, 175.15)    3.47                67
 06/20/2017   14:41:38   (  70.13, -43.95) 06/20/2017   14:40:39  (  70.16, -43.95)    2.85                59
 06/20/2017   15:31:08   ( -70.03, 123.53) 06/20/2017   15:31:20  ( -70.02, 123.58)    1.89                12
 06/20/2017   16:20:45   (  69.37, -69.73) 06/20/2017   16:21:54  (  69.37, -68.15)   61.85                69
 06/23/2017   06:58:07   (  70.12,  71.91) 06/23/2017   06:57:32  (  70.12,  71.89)    1.06                35
 06/23/2017   07:47:37   ( -70.02,-120.60) 06/23/2017   07:48:14  ( -70.03,-120.66)    2.56                37