Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 5 20.  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)
 05/20/2019   06:08:21   (  70.82,  85.31) 05/20/2019   06:07:13  (  70.88,  83.27)   74.69                68
 05/20/2019   06:58:02   ( -70.12,-108.10) 05/20/2019   06:57:42  ( -70.10,-108.17)    3.35                20
 05/20/2019   07:47:29   (  70.01,  59.38) 05/20/2019   07:48:26  (  69.99,  59.31)    3.70                57
 05/22/2019   22:25:04   (  70.15,-159.82) 05/22/2019   22:23:56  (  70.17,-159.82)    1.92                68
 05/22/2019   23:14:34   ( -70.05,   7.67) 05/22/2019   23:14:38  ( -70.07,   7.65)    2.27                 4
 05/23/2019   00:04:06   (  69.66, 174.77) 05/23/2019   00:05:17  (  69.69, 175.52)   28.91                71
 05/25/2019   14:41:34   (  70.13, -43.97) 05/25/2019   14:40:51  (  70.14, -44.01)    1.84                43
 05/25/2019   15:31:04   ( -70.03, 123.52) 05/25/2019   15:31:33  ( -70.04, 123.46)    2.44                29
 05/28/2019   06:08:25   ( -70.92, -94.55) 05/28/2019   06:07:18  ( -71.00, -96.94)   87.14                67
 05/28/2019   06:58:05   (  70.10,  71.87) 05/28/2019   06:57:47  (  70.11,  71.80)    2.77                18
 05/28/2019   07:47:36   ( -69.95,-120.71) 05/28/2019   07:48:28  ( -69.95,-120.65)    2.53                52
 05/30/2019   22:25:10   ( -70.13,  20.15) 05/30/2019   22:23:58  ( -70.13,  20.22)    2.73                72
 05/30/2019   23:14:37   (  70.01,-172.38) 05/30/2019   23:14:42  (  70.03,-172.31)    2.93                 5
 05/31/2019   00:04:09   ( -69.81,  -5.03) 05/31/2019   00:05:21  ( -69.77,  -4.60)   17.09                72
 06/02/2019   14:41:41   ( -70.10, 135.98) 06/02/2019   14:40:54  ( -70.11, 136.03)    1.85                47
 06/02/2019   15:31:08   (  69.98, -56.54) 06/02/2019   15:31:38  (  70.00, -56.51)    2.97                30