Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 5 28.  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)
 05/30/2017   06:08:15   (  71.05,  85.67) 05/30/2017   06:07:09  (  71.10,  82.97)   97.50                66
 05/30/2017   06:58:00   ( -70.12,-108.10) 05/30/2017   06:57:34  ( -70.13,-108.15)    2.28                26
 05/30/2017   07:47:27   (  70.02,  59.40) 05/30/2017   07:48:18  (  70.00,  59.36)    2.56                51
 06/01/2017   22:25:00   (  70.20,-159.73) 06/01/2017   22:23:47  (  70.25,-159.88)    7.87                73
 06/01/2017   23:14:30   ( -70.09,   7.74) 06/01/2017   23:14:27  ( -70.07,   7.72)    2.40                 3
 06/02/2017   00:03:58   (  69.93, 175.16) 06/02/2017   00:05:11  (  69.94, 175.22)    2.54                73
 06/04/2017   14:41:31   (  70.17, -43.91) 06/04/2017   14:40:40  (  70.14, -43.94)    2.80                51
 06/04/2017   15:31:01   ( -70.06, 123.57) 06/04/2017   15:31:22  ( -70.06, 123.50)    2.76                21
 06/04/2017   16:20:44   (  69.07, -70.12) 06/04/2017   16:21:50  (  69.09, -67.77)   93.59                66
 06/07/2017   06:58:02   (  70.13,  71.92) 06/07/2017   06:57:35  (  70.14,  71.84)    3.48                27
 06/07/2017   07:47:32   ( -70.02,-120.60) 06/07/2017   07:48:16  ( -70.01,-120.64)    2.11                44
 06/09/2017   22:25:02   ( -70.41,  20.56) 06/09/2017   22:23:50  ( -70.47,  19.78)   29.89                72
 06/09/2017   23:14:33   (  70.08,-172.27) 06/09/2017   23:14:29  (  70.09,-172.31)    1.95                 4
 06/10/2017   00:04:03   ( -69.98,  -4.78) 06/10/2017   00:05:10  ( -69.95,  -4.78)    2.77                67