Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 12 11.  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)
 12/13/2017   14:42:04   (  70.10, -44.06) 12/13/2017   14:41:14  (  70.11, -43.99)    3.07                50
 12/13/2017   15:31:33   ( -70.04, 123.50) 12/13/2017   15:31:56  ( -70.01, 123.47)    2.81                23
 12/16/2017   06:58:34   (  70.09,  71.81) 12/16/2017   06:58:08  (  70.11,  71.78)    2.71                26
 12/16/2017   07:48:04   ( -69.98,-120.71) 12/16/2017   07:48:49  ( -69.96,-120.67)    3.08                45
 12/18/2017   22:25:34   ( -70.35,  20.41) 12/18/2017   22:24:22  ( -70.42,  19.76)   25.46                72
 12/18/2017   23:15:04   (  70.07,-172.34) 12/18/2017   23:15:01  (  70.06,-172.37)    1.99                 3
 12/19/2017   00:04:34   ( -69.97,  -4.85) 12/19/2017   00:05:43  ( -69.95,  -4.89)    2.07                69
 12/21/2017   14:42:07   ( -70.16, 136.02) 12/21/2017   14:41:11  ( -70.16, 135.95)    2.82                56
 12/21/2017   15:31:35   (  70.00, -56.57) 12/21/2017   15:31:54  (  70.01, -56.52)    2.43                19
 12/21/2017   16:21:16   ( -69.29, 110.10) 12/21/2017   16:22:24  ( -69.27, 111.89)   70.38                68
 12/24/2017   06:58:37   ( -70.08,-108.22) 12/24/2017   06:58:03  ( -70.11,-108.20)    2.81                34
 12/24/2017   07:48:04   (  69.97,  59.27) 12/24/2017   07:48:46  (  69.96,  59.33)    2.73                42