Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2017 9 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)
 09/11/2017   06:08:49   ( -70.95, -94.50) 09/11/2017   06:07:42  ( -71.03, -96.98)   90.40                67
 09/11/2017   06:58:30   (  70.09,  71.86) 09/11/2017   06:58:10  (  70.08,  71.87)    1.57                20
 09/11/2017   07:48:00   ( -69.98,-120.67) 09/11/2017   07:48:52  ( -69.99,-120.68)    1.40                52
 09/13/2017   22:25:33   ( -70.13,  20.16) 09/13/2017   22:24:22  ( -70.14,  20.22)    2.80                71
 09/13/2017   23:15:00   (  70.03,-172.35) 09/13/2017   23:15:06  (  70.03,-172.29)    2.18                 6
 09/14/2017   00:04:33   ( -69.75,  -5.10) 09/14/2017   00:05:45  ( -69.78,  -4.60)   19.43                72
 09/16/2017   14:42:01   ( -70.12, 136.02) 09/16/2017   14:41:18  ( -70.15, 135.98)    3.27                43
 09/16/2017   15:31:28   (  70.01, -56.48) 09/16/2017   15:32:02  (  70.03, -56.53)    2.59                34
 09/19/2017   06:08:52   (  70.65,  85.05) 09/19/2017   06:07:42  (  70.72,  83.52)   56.58                70
 09/19/2017   06:58:30   ( -70.10,-108.12) 09/19/2017   06:58:14  ( -70.10,-108.18)    2.17                16
 09/19/2017   07:47:57   (  69.99,  59.37) 09/19/2017   07:48:58  (  69.99,  59.31)    2.48                61
 09/21/2017   22:25:30   (  70.12,-159.84) 09/21/2017   22:24:28  (  70.15,-159.81)    3.22                62
 09/21/2017   23:14:59   ( -70.08,   7.73) 09/21/2017   23:15:10  ( -70.06,   7.66)    3.44                11
 09/22/2017   00:04:36   (  69.41, 174.46) 09/22/2017   00:05:44  (  69.41, 175.92)   57.06                68
 09/24/2017   14:41:59   (  70.09, -44.00) 09/24/2017   14:41:24  (  70.11, -43.98)    2.67                35
 09/24/2017   15:31:29   ( -69.99, 123.49) 09/24/2017   15:32:06  ( -70.02, 123.48)    3.20                37