Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 1 14.  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)
 01/14/2017   06:08:51   ( -71.03, -94.44) 01/14/2017   06:07:44  ( -71.06, -97.08)   95.46                67
 01/14/2017   06:58:33   (  70.12,  71.84) 01/14/2017   06:58:12  (  70.10,  71.78)    2.84                21
 01/14/2017   07:48:03   ( -70.00,-120.69) 01/14/2017   07:48:53  ( -69.97,-120.70)    3.59                50
 01/16/2017   22:25:35   ( -70.18,  20.16) 01/16/2017   22:24:22  ( -70.22,  20.06)    6.04                73
 01/16/2017   23:15:02   (  70.08,-172.34) 01/16/2017   23:15:05  (  70.05,-172.36)    3.42                 3
 01/17/2017   00:04:33   ( -69.91,  -4.94) 01/17/2017   00:05:46  ( -69.91,  -4.84)    3.86                73
 01/19/2017   14:42:03   ( -70.14, 135.98) 01/19/2017   14:41:13  ( -70.11, 136.00)    2.64                50
 01/19/2017   15:31:30   (  70.03, -56.53) 01/19/2017   15:31:58  (  70.05, -56.59)    2.87                28
 01/22/2017   06:08:48   (  70.96,  85.46) 01/22/2017   06:07:41  (  71.04,  82.97)   90.56                67
 01/22/2017   06:58:32   ( -70.09,-108.21) 01/22/2017   06:58:07  ( -70.11,-108.23)    2.79                25
 01/22/2017   07:47:59   (  69.98,  59.28) 01/22/2017   07:48:51  (  69.99,  59.27)    1.69                52
 01/24/2017   22:25:31   (  70.14,-159.89) 01/24/2017   22:24:18  (  70.15,-159.82)    2.53                73
 01/24/2017   23:15:01   ( -70.04,   7.60) 01/24/2017   23:15:00  ( -70.06,   7.63)    3.03                 1
 01/25/2017   00:04:30   (  69.81, 174.93) 01/25/2017   00:05:42  (  69.84, 175.27)   13.36                72
 01/27/2017   14:41:59   (  70.14, -44.01) 01/27/2017   14:41:12  (  70.15, -44.05)    2.45                47
 01/27/2017   15:31:29   ( -70.03, 123.48) 01/27/2017   15:31:53  ( -70.01, 123.48)    2.34                24