Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 2 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)
 02/13/2019   06:08:30   (  70.72,  85.11) 02/13/2019   06:07:21  (  70.76,  83.45)   61.19                69
 02/13/2019   06:58:09   ( -70.12,-108.15) 02/13/2019   06:57:52  ( -70.10,-108.19)    2.55                17
 02/13/2019   07:47:37   (  69.96,  59.27) 02/13/2019   07:48:36  (  69.97,  59.30)    1.88                59
 02/15/2019   22:25:09   (  70.15,-159.86) 02/15/2019   22:24:04  (  70.18,-159.86)    3.70                65
 02/15/2019   23:14:39   ( -70.03,   7.61) 02/15/2019   23:14:45  ( -70.05,   7.66)    2.30                 6
 02/16/2019   00:04:12   (  69.60, 174.66) 02/16/2019   00:05:22  (  69.55, 175.70)   41.03                70
 02/18/2019   14:41:38   (  70.11, -44.03) 02/18/2019   14:40:57  (  70.13, -44.01)    2.58                41
 02/18/2019   15:31:08   ( -70.00, 123.44) 02/18/2019   15:31:38  ( -70.00, 123.51)    2.67                30
 02/21/2019   06:08:27   ( -70.83, -94.74) 02/21/2019   06:07:18  ( -70.89, -96.75)   73.70                69
 02/21/2019   06:58:06   (  70.07,  71.78) 02/21/2019   06:57:49  (  70.09,  71.83)    2.92                17
 02/21/2019   07:47:35   ( -70.01,-120.66) 02/21/2019   07:48:31  ( -70.00,-120.72)    2.68                56
 02/23/2019   22:25:07   ( -70.18,  20.18) 02/23/2019   22:23:58  ( -70.16,  20.19)    2.30                69
 02/23/2019   23:14:34   (  70.07,-172.33) 02/23/2019   23:14:42  (  70.04,-172.33)    3.00                 8
 02/24/2019   00:04:08   ( -69.74,  -5.15) 02/24/2019   00:05:20  ( -69.74,  -4.56)   22.77                72
 02/26/2019   14:41:36   ( -70.12, 135.98) 02/26/2019   14:40:51  ( -70.12, 136.03)    2.02                45
 02/26/2019   15:31:03   (  70.01, -56.53) 02/26/2019   15:31:35  (  70.00, -56.49)    2.02                32