Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 12 21.  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)
 12/22/2019   06:58:39   (  70.11,  71.85) 12/22/2019   06:57:32  (  70.13,  71.85)    2.77                67
 12/22/2019   07:48:09   ( -70.00,-120.67) 12/22/2019   07:48:13  ( -69.99,-120.61)    2.23                 4
 12/22/2019   08:37:41   (  69.61,  46.45) 12/22/2019   08:38:52  (  69.61,  47.26)   31.52                71
 12/24/2019   23:15:08   (  70.07,-172.32) 12/24/2019   23:14:24  (  70.06,-172.27)    2.18                44
 12/25/2019   00:04:38   ( -69.97,  -4.83) 12/25/2019   00:05:06  ( -69.97,  -4.81)    0.93                28
 12/27/2019   14:41:56   ( -70.91, 137.16) 12/27/2019   14:40:49  ( -70.99, 134.71)   89.41                67
 12/27/2019   15:31:37   (  70.03, -56.49) 12/27/2019   15:31:17  (  70.05, -56.47)    2.16                20
 12/27/2019   16:21:07   ( -69.93, 111.00) 12/27/2019   16:21:59  ( -69.95, 110.99)    2.48                52
 12/30/2019   06:58:38   ( -70.16,-108.07) 12/30/2019   06:57:26  ( -70.14,-108.14)    3.34                72
 12/30/2019   07:48:06   (  69.99,  59.33) 12/30/2019   07:48:09  (  69.98,  59.41)    2.99                 3
 12/30/2019   08:37:37   ( -69.83,-133.25) 12/30/2019   08:38:50  ( -69.83,-133.05)    7.87                73
 01/01/2020   23:15:07   ( -70.06,   7.66) 01/01/2020   23:14:17  ( -70.08,   7.74)    3.25                50
 01/02/2020   00:04:33   (  69.99, 175.22) 01/02/2020   00:05:01  (  69.98, 175.20)    2.12                28