Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2018 10 18.  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)
 10/18/2018   22:25:17   ( -70.19,  20.22) 10/18/2018   22:24:24  ( -70.19,  20.24)    0.90                53
 10/18/2018   23:14:44   (  70.09,-172.29) 10/18/2018   23:15:08  (  70.06,-172.26)    2.99                24
 10/19/2018   00:04:28   ( -69.21,  -5.85) 10/19/2018   00:05:35  ( -69.19,  -3.67)   86.30                67
 10/21/2018   14:41:48   ( -70.13, 136.00) 10/21/2018   14:41:18  ( -70.15, 136.06)    3.47                30
 10/21/2018   15:31:15   (  70.02, -56.50) 10/21/2018   15:32:02  (  70.03, -56.44)    2.54                47
 10/24/2018   06:08:45   (  70.33,  84.54) 10/24/2018   06:07:32  (  70.36,  84.19)   13.37                73
 10/24/2018   06:58:17   ( -70.11,-108.14) 10/24/2018   06:58:11  ( -70.12,-108.12)    0.98                 6
 10/24/2018   07:47:44   (  70.00,  59.35) 10/24/2018   07:48:55  (  69.99,  59.38)    1.42                71
 10/26/2018   22:25:17   (  70.19,-159.78) 10/26/2018   22:24:23  (  70.17,-159.75)    2.88                54
 10/26/2018   23:14:47   ( -70.09,   7.71) 10/26/2018   23:15:05  ( -70.08,   7.70)    0.69                18
 10/27/2018   00:04:28   (  69.20, 174.15) 10/27/2018   00:05:35  (  69.22, 176.27)   83.85                67
 10/29/2018   14:41:47   (  70.16, -43.94) 10/29/2018   14:41:17  (  70.14, -43.94)    2.29                30
 10/29/2018   15:31:17   ( -70.06, 123.55) 10/29/2018   15:31:59  ( -70.05, 123.51)    1.48                42