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   (  70.12,-159.88) 01/14/2019   22:24:15  (  70.13,-159.80)    2.81                60
 01/14/2019   23:14:45   ( -70.02,   7.61) 01/14/2019   23:14:57  ( -70.03,   7.66)    2.22                12
 01/15/2019   00:04:22   (  69.36, 174.34) 01/15/2019   00:05:30  (  69.34, 175.99)   64.47                68
 01/17/2019   14:41:44   (  70.10, -44.04) 01/17/2019   14:41:09  (  70.11, -44.00)    1.76                35
 01/17/2019   15:31:14   ( -70.00, 123.46) 01/17/2019   15:31:51  ( -70.01, 123.46)    1.52                37
 01/20/2019   06:08:38   ( -70.62, -95.03) 01/20/2019   06:07:28  ( -70.67, -96.42)   51.44                70
 01/20/2019   06:58:13   (  70.07,  71.80) 01/20/2019   06:58:03  (  70.09,  71.79)    2.86                10
 01/20/2019   07:47:43   ( -69.97,-120.70) 01/20/2019   07:48:45  ( -69.99,-120.74)    2.89                62
 01/22/2019   22:25:15   ( -70.15,  20.16) 01/22/2019   22:24:12  ( -70.13,  20.20)    3.19                63
 01/22/2019   23:14:42   (  70.03,-172.36) 01/22/2019   23:14:56  (  70.03,-172.33)    1.51                14
 01/23/2019   00:04:20   ( -69.50,  -5.47) 01/23/2019   00:05:30  ( -69.50,  -4.24)   47.97                70
 01/25/2019   14:41:43   ( -70.12, 135.99) 01/25/2019   14:41:05  ( -70.12, 136.00)    0.30                38
 01/25/2019   15:31:10   (  70.00, -56.54) 01/25/2019   15:31:49  (  70.01, -56.54)    2.07                39