Simultaneous Nadir Overpasses (SNOs) between LANDSAT-8 and NPP
TLE Epoch: 2019 5 17.  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)
 05/17/2019   14:41:31   ( -70.14, 136.05) 05/17/2019   14:40:46  ( -70.13, 136.02)    1.45                45
 05/17/2019   15:30:58   (  70.03, -56.46) 05/17/2019   15:31:30  (  70.02, -56.50)    2.18                32
 05/20/2019   06:08:21   (  70.83,  85.31) 05/20/2019   06:07:13  (  70.88,  83.27)   74.65                68
 05/20/2019   06:58:03   ( -70.07,-108.18) 05/20/2019   06:57:42  ( -70.09,-108.16)    3.03                21
 05/20/2019   07:47:30   (  69.96,  59.31) 05/20/2019   07:48:26  (  69.98,  59.31)    3.12                56
 05/22/2019   22:25:04   (  70.14,-159.82) 05/22/2019   22:23:56  (  70.16,-159.82)    2.08                68
 05/22/2019   23:14:34   ( -70.04,   7.67) 05/22/2019   23:14:38  ( -70.06,   7.66)    2.01                 4
 05/23/2019   00:04:06   (  69.65, 174.77) 05/23/2019   00:05:17  (  69.69, 175.52)   29.26                71
 05/25/2019   14:41:34   (  70.11, -43.99) 05/25/2019   14:40:51  (  70.13, -44.01)    2.69                43
 05/25/2019   15:31:04   ( -70.01, 123.50) 05/25/2019   15:31:33  ( -70.03, 123.47)    2.37                29
 05/28/2019   06:08:25   ( -70.89, -94.59) 05/28/2019   06:07:17  ( -70.94, -96.84)   82.12                68
 05/28/2019   06:58:05   (  70.07,  71.83) 05/28/2019   06:57:46  (  70.05,  71.88)    2.63                19
 05/28/2019   07:47:35   ( -69.97,-120.67) 05/28/2019   07:48:28  ( -69.95,-120.64)    2.99                53
 05/30/2019   22:25:09   ( -70.14,  20.16) 05/30/2019   22:23:58  ( -70.13,  20.23)    2.64                71
 05/30/2019   23:14:36   (  70.02,-172.36) 05/30/2019   23:14:42  (  70.03,-172.31)    1.97                 6
 05/31/2019   00:04:09   ( -69.76,  -5.09) 05/31/2019   00:05:21  ( -69.76,  -4.60)   18.96                72