Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 7 16.  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)
 07/17/2019   22:25:24   ( -70.11,  20.14) 07/17/2019   22:24:14  ( -70.14,  20.18)    3.35                70
 07/17/2019   23:14:51   (  70.01,-172.36) 07/17/2019   23:14:58  (  70.01,-172.32)    1.47                 7
 07/18/2019   00:04:24   ( -69.73,  -5.11) 07/18/2019   00:05:36  ( -69.72,  -4.56)   21.05                72
 07/20/2019   14:41:54   ( -70.08, 135.98) 07/20/2019   14:41:09  ( -70.09, 136.02)    1.95                45
 07/20/2019   15:31:21   (  69.98, -56.52) 07/20/2019   15:31:53  (  69.97, -56.48)    1.83                32
 07/23/2019   06:08:42   (  70.76,  85.23) 07/23/2019   06:07:34  (  70.82,  83.32)   70.12                68
 07/23/2019   06:58:23   ( -70.05,-108.18) 07/23/2019   06:58:03  ( -70.05,-108.14)    1.79                20
 07/23/2019   07:47:50   (  69.94,  59.31) 07/23/2019   07:48:47  (  69.93,  59.35)    2.38                57
 07/25/2019   22:25:23   (  70.12,-159.83) 07/25/2019   22:24:17  (  70.15,-159.83)    2.88                66
 07/25/2019   23:14:53   ( -70.01,   7.65) 07/25/2019   23:14:58  ( -70.00,   7.70)    2.45                 5
 07/26/2019   00:04:26   (  69.57, 174.68) 07/26/2019   00:05:36  (  69.57, 175.66)   37.81                70
 07/28/2019   14:41:53   (  70.08, -44.01) 07/28/2019   14:41:12  (  70.10, -44.00)    2.88                41
 07/28/2019   15:31:23   ( -69.98, 123.48) 07/28/2019   15:31:53  ( -69.96, 123.54)    3.13                30