Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 1 13.  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)
 01/14/2019   22:25:15   (  70.14,-159.86) 01/14/2019   22:24:16  (  70.17,-159.86)    3.15                59
 01/14/2019   23:14:45   ( -70.04,   7.63) 01/14/2019   23:14:57  ( -70.02,   7.68)    2.84                12
 01/15/2019   00:04:22   (  69.37, 174.36) 01/15/2019   00:05:31  (  69.38, 175.93)   61.38                69
 01/17/2019   14:41:44   (  70.11, -44.02) 01/17/2019   14:41:09  (  70.10, -43.98)    2.05                35
 01/17/2019   15:31:14   ( -70.01, 123.48) 01/17/2019   15:31:51  ( -70.00, 123.48)    1.55                37
 01/20/2019   06:08:39   ( -70.58, -95.09) 01/20/2019   06:07:28  ( -70.66, -96.40)   49.04                71
 01/20/2019   06:58:13   (  70.08,  71.82) 01/20/2019   06:58:03  (  70.08,  71.81)    0.42                10
 01/20/2019   07:47:43   ( -69.98,-120.68) 01/20/2019   07:48:45  ( -69.98,-120.72)    1.37                62
 01/22/2019   22:25:14   ( -70.17,  20.18) 01/22/2019   22:24:12  ( -70.17,  20.14)    1.67                62
 01/22/2019   23:14:41   (  70.05,-172.34) 01/22/2019   23:14:56  (  70.07,-172.40)    3.21                15
 01/23/2019   00:04:19   ( -69.51,  -5.45) 01/23/2019   00:05:29  ( -69.49,  -4.22)   47.84                70
 01/25/2019   14:41:43   ( -70.13, 136.01) 01/25/2019   14:41:05  ( -70.11, 136.01)    2.68                38
 01/25/2019   15:31:10   (  70.01, -56.52) 01/25/2019   15:31:49  (  70.01, -56.53)    0.62                39