Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 2 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)
 02/12/2018   22:25:03   (  70.74,-159.00) 02/12/2018   22:23:54  (  70.76,-160.70)   62.23                69
 02/12/2018   23:14:43   ( -70.08,   7.66) 02/12/2018   23:14:25  ( -70.11,   7.66)    3.34                18
 02/13/2018   00:04:10   (  69.97, 175.16) 02/13/2018   00:05:09  (  69.98, 175.16)    0.61                59
 02/15/2018   14:41:41   (  70.20, -43.92) 02/15/2018   14:40:36  (  70.18, -43.99)    3.51                65
 02/15/2018   15:31:12   ( -70.03, 123.48) 02/15/2018   15:31:17  ( -70.05, 123.53)    2.40                 5
 02/15/2018   16:20:45   (  69.60, -69.48) 02/15/2018   16:21:55  (  69.60, -68.50)   38.02                70
 02/18/2018   06:58:10   (  70.15,  71.89) 02/18/2018   06:57:28  (  70.12,  71.87)    2.97                42
 02/18/2018   07:47:40   ( -70.04,-120.63) 02/18/2018   07:48:10  ( -70.04,-120.68)    1.98                30
 02/20/2018   22:24:59   ( -70.92,  21.26) 02/20/2018   22:23:51  ( -70.97,  18.98)   83.09                68
 02/20/2018   23:14:39   (  70.10,-172.31) 02/20/2018   23:14:21  (  70.12,-172.35)    3.25                18
 02/21/2018   00:04:09   ( -69.99,  -4.82) 02/21/2018   00:05:02  ( -69.99,  -4.82)    0.75                53
 02/23/2018   14:41:39   ( -70.21, 136.08) 02/23/2018   14:40:28  ( -70.19, 136.03)    3.35                71
 02/23/2018   15:31:06   (  70.09, -56.44) 02/23/2018   15:31:12  (  70.07, -56.49)    3.19                 6
 02/23/2018   16:20:39   ( -69.83, 110.83) 02/23/2018   16:21:51  ( -69.83, 111.20)   14.34                72